Robert Cicetti claims he made first hemp based 3d printing filament

Robert Cicetti claims he made worlds first hemp based 3d printing filament.
His pictures look cool but there are no details about the material or how its made. It is still cool, hemp could be very cost effective and environmentally sustainable filament source.
Since I have not found any additional information, the filament could be type of plastic polymer derived form hemp or some standard plastic like PLA with hemp fibre added. Both could have uses for 3d printing.
Hopefully Robert will publish some more data on his invention!







































Hamp has some fiberous properties and it is not the first plant material used for making a 3d printing filament. Potato waste (Solany) and soy (FilaSoy) based filaments were made in the past.

Hemp is used to make high quality plastics for different purposes, you can read more about it here:

http://www.hempplastic.com/


Simple algorithm to prevent oozing problems on dual extruders

James Yong developed a small g-code algorithm to help prevent oozing in dual extruder printing by producing a small barrier to scrape off the oozing filament.

Here is the g-code he uses:
Layer change G-code:
T1;
G92 E0;
G1 E-0.5 F1200;
G92 E0;
G1 X96.450 Y60.8 F5000;
G1 E1.5 F1500;
G92 E0;
G1 X96.450 Y36.650 E0.07476 F1500.000;
G1 X96.950 Y36.650 E0.08390;
G1 X96.950 Y65.150 E0.23935;
G1 X96.450 Y65.150 E0.24850;
G1 X96.450 Y60.813 E0.32782;
G1 X95.950 Y60.813 F5400.000;
G1 X95.950 Y36.150 E0.41309 F1500.000;
G1 X97.450 Y36.150 E0.44053;
G1 X97.450 Y65.650 E0.61427;
G1 X95.950 Y65.650 E0.64170 F1500.000;
G1 X95.950 Y60.888 E0.72879;
G4 P200; wait for ooze to slow
G10;
T0;
G92 E0;
G1 X174.750 Y61.9 F5000;
G1 E1.4 F1500;
G92 E0;
G1 X174.750 Y37.750 E0.07476 F1500.000;
G1 X175.250 Y37.750 E0.08390;
G1 X175.250 Y66.250 E0.23935;
G1 X174.750 Y66.250 E0.24850;
G1 X174.750 Y61.913 E0.32782;
G1 X174.250 Y61.913 F5400.000;
G1 X174.250 Y37.250 E0.41309 F1500.000;
G1 X175.750 Y37.250 E0.44053;
G1 X175.750 Y66.750 E0.61427;
G1 X174.250 Y66.750 E0.64170 F1500.000;
G1 X174.250 Y61.988 E0.72879;
G4 P200; wait for ooze to slow
G10;
Tool change G-code:
G1 X80 Y40 F4000;
G1 X130 Y40 F4000;
G1 X130 Y55 F4000;
G1 X190 Y55 F4000;
He uses Prusa i3 with double extruder, Slic3r, Marlin firmware and Repetier Host.

On the left you can see a "barricade" that binds oozing filament and on the right the dual 3d printed object that looks very good.


























Here is a detailed video of algorithm in action and it really does prevent oozing remains on the printed object and increases print quality:




Here is a video showing a similar purge - wipe wall feature in Makerware 2.3.0.4. but with much higher walls and more filament spending.




I don't own dual extruder machine or have much experience with dual extruders so let me know your opinions and experiences in the comments. Thank you James for sharing the code!

Carvey desktop hobby CNC router

Carvey is a desktop CNC router from Inventables. They call it desktop carver since they think "cnc router" would be confusing for new users.

It can carve in many materials including soft metals:
  • Hardwoods like walnut, maple, and mahogany
  • Softwoods like pine and balsa
  • Cork
  • Plywoods and MDF
  • Soft metals including aluminum, copper, brass, silver and gold
  • Circuit boards
  • Plastics like acrylic, HDPE, Delrin, Corian and PVC
  • Waxes and foams
  • Linoleum and other stamping materials
It was first launched on Kickstarter where it was successfully funded:




KS campaign:

https://www.kickstarter.com/projects/carvey/carvey-the-3d-carving-machine-for-the-maker-in-all/description

Carvey demonstration:


Carvey homepage: https://www.inventables.com/technologies/carvey

Carvey technical specifications:
  • Machine Footprint: 24" x 24" x 18” (61cm x 61cm x 46cm)
  • Work Area: 12” x 8” x 2.75” (30cm x 20cm x 7cm)
  • *Repeatability 0.001" to 0.003" 
  • Run out: .0006" (.01524mm)
  • Spindle RPM: 3000-12,000 (300W)
  • Weight Approx: 60 lbs. (27kg)
  • Materials it Can Cut: wood, soft metals, foam, plastics, circuit boards
  • Connectivity: USB Port 
  • Computer System Requirements: Chrome web browser, 64 bit Mac or Windows, USB Port.
  • Price at 1999 USD range for base model
Here is Barnacules touring the Inventables offices and reviewing the Carvey:



Carvey has a nice design but there are no independent reviews or test.

Carvey desktop cnc router

Example of a casing and components made with Carvey


DIY computer based on MOS 6502 CPU with 3d printed enclosure

Dirk Grappendorf made this DIY computer based on 8-bit MOS 6502 CPU that was used in many popular home computers of the 1970s and 1980s like the Commodore 64 or the Apple II with 3d printed case.
He has detailed documentation so you can go step by step and make it yourself.
Very cool!


























Project homepage: http://www.grappendorf.net/projects/6502-home-computer

All the files and code needed for this project can be found here:

https://github.com/grappendorf/homecomputer-6502

If you find this interesting check out the Pi Top project.

SemiFlex is new member of NinjaFlex 3d filament family made by Fenner Drives

Fenner Drives, the company who created NinjaFlex, released their new filament named SemiFlex which is more rigid.

Here are the features from the product page:
  • High level of detail
  • Contain intricate parts
  • High resolution text
  • Unsupported vertical printing
  • Shock-absorption needed
  • Requires less flexibility than NinjaFlex Original 3D Filament
  • Filament hardness of approximately 85A (NinjaFlex) and 98A(50D) SemiFlex
  • REACH and RoHS 2002/95/EC Directive Compliant
  • recommended extruder temperatures are around the 210-25°C range, recommended platform temperatures are in the 20-50°C range, and recommended print speed should be 30mm per second
Since it is a new material there is no tests or reviews, but since the NinjaFlex was a success, SemiFlex will probably find its market place.

Here is the comparison chart:


































Get and share optimal Slicer settings with SlicerShare

Ever needed some slicer settings for a printer or material you are not familiar with? SlicerShare is a webpage dedicated to shearing various slicer settings.
It looks like a cool idea and I hope that the user base will grow and more people will contribute ...
There are some 30+ slicer settings shared currently on the site.





























http://slicershare.com/

Thank you Jay King for the tip!

Houstex 2015: SPRING Technologies demonstrating WYSIWYC® - the mobile and synchronized NC simulation solution

The latest generation software features the shop floor appropriate Panasonic Toughpad equipped with NCSIMUL Player 9.2, the CNC simulation reviewer of NCSIMUL Machine


SPRING Technologies, developer of software solutions that enable manufacturers to optimize their CNC machines, is exhibiting in booth 468 at Houstex from February 24 – 26, 2015.
SPRING’s exhibit will highlight the latest features, benefits, and applications of company’s flagship simulation software, NCSIMUL Machine and NCSIMUL Player 9.2. Specifically, with the growing adoption of remote and mobile software accessibility, SPRING will demonstrate its recently introduced mobile system called WYSIWYC® (What You See Is What You Cut). 
NCSIMUL Player 9.2 will be embedded on a fully rugged, mobile Panasonic Toughpad IP65and shown how it is connected to machine tool controllers such as Fanuc CNCs.
With this capability, shop floor operators and managers are able to interact remotely – in 3D and in real time using intuitive touch controls – with one or several CNC machines and their machiningprocesses, as they execute the CNC program on the machine. 3D animations of CNC machining processes, as well as related work instruction sheets are directly accessible from the mobile application

For the Complete Story click here

UberBlox construction modules for your home manufacturing machines

UberBlox are modular building blocks for any type of machine ranging from wheeled robot to CNC mill. You can create anything you want.

Pick and Place delta robot made with UberBlox

UberBlox description from the company page:
UberBlox is a new high-quality metal construction set and prototyping system for makers to build rigid structures and automated machines.

At the heart of the system is a new single-connector locking mechanism which uses a common small tool to quickly and precisely lock each block to the next. The firmly connected blocks provide accurate, strong and rigid frames for a wide variety of structures and complex machines such as robots, CNC machines and 3D printers.

In addition to the basic blocks, the system includes a growing catalog of compatible and reconfigurable parts, including moving components, sub-assemblies, motors, electronics and controllers based on popular boards such as Arduino and Raspberry Pi, for a complete solution to the building needs of today's sophisticated maker.

Here is short video overview of UberBlox:



UberBlox homepage: https://uberblox.com/

They will be on KickStarter soon ...



The Kiosk by Bruce Sterling is dark vision of future and 3d printing

"The Kiosk" is an EXCELLENT must-read (or listen) science fiction novella by Bruce Sterling which deals with the dystopian future and 3d printing.
Bruce Sterling is a master SF writer famous for his work in fiction and technology theory and he currently lives in Serbia which is in my neighborhood and was once part of Yugoslavia.

The novella is clearly influenced by culture and history of Ex-Yugoslavia which makes it even more appealing to me.
It deals with life of kiosk owner Borislav from East Euroslavia who gets a "Fabrikator" machine. I will not spoil your enjoyment of the audiobook but it gets dark, violent, interesting ... there are 3d printed bullets printed with carbon particles and other 3d printed appliances ... the whole society of main protagonist is shaped by 3d printing...





You can download it here for free, it is read by Peter Cavell and starts around 10:30 into the podcast:

http://www.starshipsofa.com/blog/2010/01/13/aural-delights-no-116-bruce-sterling/

It is hour and a half well spent, I listened to it while walking my dog ...

FYI: it is not an optimistic work ...

For a similary themed dystopian short story you can also check out Printcrime by Cory Doctorow:

http://craphound.com/?p=573

"The Kiosk" inspired a project:



‘KIOSK’ explores a near future scenario in which digital fabrication is so ubiquitous that we see it appear on our
street corners. With KIOSK the user can ‘appropriate, sample, remix, improve, up/downscale or copy new objects
and 3D-print them on the spot.’ KIOSK operates as a portable 3D copyshop capable of producing a ‘custom made
fix for your broken shoe, materialise an illegal download of Starck’s Juicy Salif orange squeezer that you modified for better performance or quickly print out a present for your sister’s birthday.’ For The Machine Unfold, in collaboration with Indianen, created a new creative digital copy station.

A project commissioned by Z33, House for contemporary art and MU Eindhoven.
With the support of Bits from Bytes and Jo Van Bostraeten.
A collaboration with Indianen.

Draken DLP SLA 3d printer is new challenger in affordable stereolithography market

Draken by 3DFacture is new DLP based LSA 3d printer that wants to enter affordable stereolithography market segment.

Key features from KS page:

  • Traditionally, 3D printers fall into two catergories: high resolution printers costing thousands of dollars, or low resolution ones costing under a thousand. The Draken prints at 37 microns on X-Y axis and can print down to 10 microns on the Z axis, which results in printing features as fine as a strand of hair.
  • Draken prints  up to 8.66" tall with a 3.86" x 7.09" build base at 90 micron XYZ resolution, the largest and tallest among all personal SLA printers.
  • Because 3D printers can take several hours or longer to complete taller builds, it's important to reduce the noise pollution as much as possile. Draken makes almost no noise.
  • Draken is one of the fastest personal SLA printers in the market today.  For other SLA printers to print a 6.5 inch Statue of Liberty with 100 micron Z resolution, it takes anywhere from 6 to 8 hours. With Draken, it only takes 3.6 hours.
  • The inner printer frame is made of an integrated piece of high-quality steel, the outer shell is a single piece of aluminum alloy sheet, which assures the stability and precision of the printer.
  • Draken is so flexible that you can easily take out the commercial-grade high definition projector and use it to project HD movies.
  • The patent-pending passive peeling technique in the build platform reduces the adhesion  force at each layer separation and increases the printing speed dramatically.
  • For most SLA printers on market, the resin vat needs to be replaced every few months, because the silicone coating on the vat might get cloudy after extensive usage. In Draken, we bonded a thin Teflon layer on top of the silicon coating, which greatly extended the lifetime of the vat. You won't need to worry about frequent replacement of the vat anymore.
  • Draken supports all third-party resins. We have tested several stable resins for Draken with various properties. MakerJuice, MadeSolid, FTD, and even Formlabs resin work perfectly with Draken. Furthermore, Draken's materials development team has created our own resin, priced lower than all the others on market.


 Draken technical specifications and comparison to other 3d printrs on the market:









3DFacture company homepage: http://www.3dfacture.com/

Draken is on Kickstarter now, where you can still get it at the moment for $1099 (without the projector):

https://www.kickstarter.com/projects/1181608615/draken-affordable-fast-high-res-dlp-sla-3d-printer

Here is video presentation of this printer:



From DIY 3d printing history 4 - Mattel's Electric vacuum plastic toy maker

While this is not exactly a 3d printer but a sort of plastic vacuum molding machine it shows that there is a long history of using heated plastic to reproduce 3d objects for everyday usage.
This is a photo of a Mattel Electric VAC-U-FORM children toy maker. Today would be probably prohibited due to dangers of letting kids play with molten plastics and very hot elements.
It is probably a grand grand granddaddy of modern home 3d printers. Maybe. Or a strange elderly and distant uncle ... still interesting ...




Source or copyright of the picture is unknown ... age also ... anyone knows more?

Update: It is form the early sixties and here is video of the TV commercial:



For other posts on the subject and curiosities for the paste start here:

http://diy3dprinting.blogspot.com/2013/10/from-diy-3d-printing-history-1-silicone.html


POP3D Second space 3d printer to be sent to ISS by ESA

European Space Agency is also sending a 3d printer to International Space Station. It will be the second 3d printer in space. The printer is named POP3D and it's developed in Italy. First ISS 3d printer is already working on ISS and was developed by "Made in Space" and delivered by SpaceX.

Here is the video by Altran:




From the source article:
Europe’s very first 3D printer in space is scheduled for installation aboard the ISS next year.
Designed and built in Italy, it will be put to the test as part as ESA astronaut Samantha Cristoforetti’s Futura mission, and is set to reach orbit in the first half of next year. Samantha herself will be launched on her six-month Station assignment on 23 November.
The POP3D Portable On-Board Printer is a small 3D printer that requires very limited power and crew involvement to operate,” explained Luca Enrietti of Altran, prime contractor for the compact printer.

The unit is a cube with 25 cm sides and prints with biodegradable and harmless plastic using a heat-based process.

“Part of the challenge of designing a 3D printer for the Station was to ensure its operation does not affect the crew environment,” added Giorgio Musso of Thales Alenia Space Italy, principal investigator for the project.

Funded by Italy’s ASI space agency, POP3D should take about half an hour to produce a single plastic part, which will eventually be returned to Earth for detailed testing, including comparison with an otherwise identical part printed on the ground.

“There is big potential all along the value chain, to save cost and mass,” noted Reinhard Schlitt, heading OHB’s Engineering Services.

“But right now the way parts are being produced in various different ways. As a satellite manufacturer, we need common standards in place so we can compare competing supplier parts on a like-for-like basis.

“Europe does have a lead in this technology – the latest laser machines are coming from here for export to the US and China – so we should build on that.”
Source: 

http://www.esa.int/Our_Activities/Space_Engineering_Technology/Europe_s_3D_printer_set_for_Space_Station


POP3D space based 3d printer developed in Italy (Source: ESA)

Astronaut Samantha Cristoforetti, source: ESA 



Model rocket breaks sound barrier with 3d printed fins

Steve Jurvetson made this model hobby rocket which has 3d printed stabilizing fins made from PLA. The rocket is small but it went supersonic at Mach 1.8! Maybe this is normal for this type of DIY rockets but it looks great to me!

Here are the specifications of two rockets shown in the video:
  • The first one is a a minimum diameter 38mm blue tube + golf ball nose + 3D-printed Makerbot fin can. The J270 takes this puppy from 0 to 1,363 MPH (Mach 1.8) in 2.6 seconds! According to RockSim, it topped out at 9,454 ft.
  • The second flight was a simpler Estes with D12 booster staging to a C6-7, with a Sharpie pen as upper nose cone/weight. The J-motor on left is 32x the D motor on right.
Look at that rocket speeding up for the sky!




Source and photostream:

https://www.flickr.com/photos/jurvetson/14761043541/in/photostream/

Here is the picture of the rocket, you can clearly see the fin can at the bottom with heart shapes:


Here is Steve's TED talk about this rocket build. Looks like Steve is a big guy in tech field:
Steve Jurvetson may be one of the most respected and successful venture capitalists in Silicon Valley, but he is also an avid rocket maker, traveling regularly to Nevada's Black Rock Desert to launch the latest iteration. Steve shares blast-off stories and some thoughts about where his "hobby" and his profession intersect. From the Bay Area Maker Faire 2014 Center Stage.

Photon Elephant Raspberry Pi based OS for your 3d printer

Photo Elephant is new Raspberry Pi based software product that will control your 3d printer via GPIOs. You can get your copy for 75 USD.

Here is the presentation:



they are on Kickstarter now:

https://www.kickstarter.com/projects/photonelephant/photon-elephant-a-real-os-for-your-3d-printer

Photon Elephant homepage: http://photonelephant.com/



Uber-cheap small CNC with fully 3d printable frame and salvaged motors

Instructables user wootin24 developed a small multifunctional machine that can be a small (very small) CNC, plotter or 3d printer. It has fully 3d printable frame and it is powered by junk optical drive motors.  3d printable frame and recycled motors make it very cheap to make ...



































All the files for this machine and instructions to make it can be found here:

http://www.instructables.com/id/Extremely-Low-Cost-3D-Printable-3D-Printer-Plotter/?ALLSTEPS

OverLord multicolor Delta 3d printer

OverLord is a new multicolor Delta 3d printer made by DreamMaker. The specifications look very impressive but what I really like is the design.
























Comparison of Overlord Pro to other market 3d printers:

























Here are OverLord and OverLord Pro technical specifications:









Company homepage: http://www.dreammaker.cc/

OverLord had a very successful Kickstarter where they got £254,825 pledged of £10,000 goal:

https://www.kickstarter.com/projects/1122205541/overlord-3d-printer-multi-color-smart-stylish


Here is a Kickstarter video:




It makes some nice prints (but there are no independent tests or review)... There were many 3d printer producers and Kickstarters that promised full color 3d printing, but results were disappointing or not delivered ...








Chocolate 3D printer by Print Arsenal (Update: looks like it is a scam)

UPDATE (21.1.2015):

Looks like the whole campaign is a scam and the printer does not exist:

http://www.3ders.org/articles/20150121-crowdfunding-campaign-for-the-print-arsenal-3d-chocolate-printer-turns-out-to-be-fraudulent.html


OLD POST:

New day new 3d printer. This machine developed by Print Arsenal also extrudes chocolate. It is maybe somewhat pricey, but you decide ...






































Print Arsenal Chocolate 3d printer  technical specifications:



You can find it on Indiegogo:

https://www.indiegogo.com/projects/chocolate-3d-printer

Here is video of printer extruding a chocolate ornament:




How to make 3d printed replacment car key

Smith | Allen is a design company located in Oakland California and they posted a step-by-step guide on how to make a replacement or copy of a car key.

They took a photo of a broken car key, processed it in Fusion 360 and 3d printed in on Object Connex 500. You could use software you are used to or use Shapeways for printing the key. Simple FDM home printers were not used in the process so I'm not sure how the end result would be. 

Do keep in mind that some keys have security codes so maybe you will not be able to start your car or you will trigger some sort of security protocol.
















You can see a full tutorial here:

http://www.instructables.com/id/Copy-a-Car-Key-with-a-3D-Printer/?ALLSTEPS

If you want to do this yourself, you will have to watch out for the thickness and strength of your 3d printed car key and that you don't brake it inside your ignition lock.

And now stories will be posted by fearmongers on vehicle security and potential for crime and how you should always keep your car key out of sight so that they can not be copied by taking a photo of them ...

Massive collection of animated mechanical movements and devices

While I was looking for a design of an automatic windows opening mechanism that I could use on my workshop I found this little jam on the YouTube.
The channel is just named "thang010146" and contains big number of video animations which show various mechanical movements and internal working mechanics of different devices in many areas like construction, engineering, hydraulics, gears, cams, robotics and many more. There are new videos coming up frequently.
If you are hobbyist, maker, engineer or just curious this is very useful reference base for finding solutions or inspiration.

Here are some examples:







You can find many MANY more mechanism schematics here:

https://www.youtube.com/user/thang010146/videos


One of the windmill / wind generators designs from the channel  


Digitrax3D MH5 3d printing copy machine with five extruders

Digitrax3D MH5 is a type of 3d printing copy machine with five extruders which can print five objects at the same time.
It is still a prototype but market for this type of device is probably growing and the team is working on versions with with 8 and 10 heads with a print area of 55 x 28 cm.

Digitrax technical specifications from manufacturer page:
  • The first 3D printer with 5 adjustable (in position and temperature) heads
  • Product 5 times faster
  • Rigid aluminum frame with A6063-T5 quality
  • Precision: 100μ
  • Filament: 1.75
  • Material: PLA for MH5, PLA, ABS for HD Version 5.1
  • Machine size: 77x57x55 cm
  • 28x28x20 volume printing (15,680 cm3) - And soon 60x30 cm
  • Weight: 40 kg
  • Connection: USB or micro SD card
  • Nozzle diameter: 0.4 Standard, others on request
  • Possibility to choose of use 1 head or 2 or 5
  • Quick assembly, removing or adjustment spacing of the 5 heads
  • Individual temperature control by LCD for each head
  • Lighting by LEDs of the work plan
  • 1 year warranty
  • Manufacturing: 3 to 4 weeks
  • Possibility of remote maintenance
  • With current 3D printers, for produce only 1 PLA pot of 8 cm high request 1h 4mn of printing time
  • With MH5, the same pot was duplicated in 15 units in 3h 21mn
  • Result = only 13.4 minutes per piece





























Here is video of Digitrax 3d copy machine working:




Digitrax facebook page:

https://www.facebook.com/Digitrax3D

DIY 3d printed water cooler block for small electronics

Instructables user Unprecedented developed a useful little 3d printable cooling block for his Raspberry Pi. It holds a copper penny on the bottom as contact to hot chip and it has plastic tubing taking in cool and taking out hot water and thus cooling the chip.

It can be used on variety of electronic parts with Raspberry Pi and other small computers being the obvious choice if you are into overclocking. Water cooling is silent and can take away large amount of excess heat. It goes without saying, if the water leaks out it will badly damage your electronics.
You could also use 3d printed peristaltic pump to push the water or just have it stream from faucet ...

It would be interesting to see how much could the design be enlarged ...

3d printed cooling block attached to a Raspberry Pi. Copper penny is on the bottom touching the chip ...

































You can find all the instructions and files to make it yourself at:

http://www.instructables.com/id/Raspberry-Pi-Water-Cooler/?ALLSTEPS

Here is a video of heat conductivity test:



FreeLSS open source DIY 3d scanner with 3d printed parts and Raspberry Pi

FreeLSS is a simple DIY 3d scanner that looks easy to make if you know some basic stuff like 3d printing and Raspberry Pi operating. It has most of a parts 3d printable and electronics is based on Pi and Pi camera. It is open source and all the files are available! Kudos to the team!
















FreeLSS description from the project page:
FreeLSS is a free as in open source, open hardware, and open electronic design 3D printable turn table laser scanning platform based on the Raspberry Pi. It is written in C++ and licensed under the GPL.
The scanning software runs self-contained on the Raspberry Pi without the need for a connected computer via USB. The user interface is completely web based and is exposed via libmicrohttpd on the Pi.
Laser sensing is performed via the official 5 MP Raspberry Pi camera. The camera can be operated in either video or still mode. Video mode camera access is provided by the Raspicam library. Reference designs for the electronics to control the lasers and turn table are available as Fritzing files. Access to the GPIO pins are provided by wiringPi.
FreeLSS technical specifications:
  • Fully 3D Printable
  • Point cloud export
  • Triangle mesh export
  • Assisted calibration
  • Support for dual laser lines (right and left)
  • Up to 6400 samples per table revolution (with reference electronics)
  • 5 megapixel camera sensor
  • Support for camera Still mode and Video code
  • Configurable Image Processing Settings
  • Ability to generate images at different stages of the image processing pipeline for debugging
  • Persistant storage of previous scans
  • Manual control of lasers and turn table
  • Flexible architecture
  • Output formats: PLY - Colored Point Cloud, XYZ - Comma Delimited 3D Point Cloud, STL - 3D Triangle Mesh
FreeLSS homepage:

http://www.freelss.org/

GitHub with all the files: http://github.com/hairu/freelss


Here is a video of scanner in action:




I couldn't find any test, reviews or comparisons with other DIY 3d scanners, but if somebody has any experience put it in the comments ...


Simple DIY 3d printable insectoid robot powered by Arduino

Here is a simple robotic walker that you can make yourself. It is powered by 9v battery and Arduino Uno controlled. It looks like ideal project for school or beginner robotics learning.
The project is developed by Instructables user Bit-Boy. Kudos Bit!

You will need lots of screws ... like really ...

All the files, code and detailed building instructions can be found here:

http://www.instructables.com/id/3D-Printed-Walking-Robot-Klann-Linkage/?ALLSTEPS

here is a video of this insectoid robot moving:



Triple Delta robotic arm with extended reach and flexibility

Triple Delta is robotic arm project where three delta mechanisms are connected together to get more movement freedom and longer reach. It can operate outside of standard volume for the same sized single delta arm.
Since there are many moving parts there is a long way until making it precise enough to 3d print with. You will probably see it first in some small home manufacturing robotic line moving and manipulating parts. In theory if you know delta mechanics you could make it yourself, I have note found any instructions or guides. You could go wild and add more Deta arms and make it a quad Delta or pentaDelta ...
It is developed by Aad van der Geest. Great work Aad! Hopefully we will see more information on your project!





Here is tripleDelta robot moving and stacking wooden cubes from a conveyor belt  

Robot Programming using Kuka | prc

NOTE: This post contains information on the PREVIOUS version of KUKA|Prc. 

Please see Robot Programming with Kuka|prc for information on the latest version (v2). 



For information on the older version see below...

This post provides general information on setting up a Grasshopper definition for using Kuka|prc with the Agilus Workcell in the Taubman College Fab Lab.

KUKA|prc is a set of Grasshopper components that provide Procedural Robot Control (thus the name prc) for KUKA robots. These components are very straightforward to use and it's actually quite easy to program the robots using them.

Terminology

Before we begin discussing KUKA|prc it's important to clarify some terminology that will be used in this topic.

  • Work Cell: All the equipment needed to perform the robotic process (robot, table, fixtures, etc.)
  • Work Envelope: All the space the robot can reach.
  • Degrees of Freedom: The number of movable motions in the robot. To be considered a robot there needs to be a minimum of 4 degrees of freedom. The Kuka Agelis robots have 6 degrees of freedom. 
  • Payload: The amount of weight a robot can handle at full arm extension and moving at full speed.
  • End Effector: The tool that does the work of the robot. Examples: Welding gun, paint gun, gripper, etc.
  • EOAT: End Of Arm Tooling. This is everything bolted to the end of the tool plate. An example is a transformer bolted to the tool plate but not actually the end effector. The transformer only supports the operation of the end effector.
  • Manipulator: The robot arm (everything except the EOAT).
  • TCP: Tool Center Point. This is the point (coordinates) that we program in relation to.
  • Positioning Axes: The first three axes of the robot (1, 2, 3). Base / Shoulder / Elbow = Positioning Axes
  • Orientation Axes: The other joints (4, 5, 6). These joints are always rotary. Pitch / Roll / Yaw = Orientation Axes.


Rhino File Setup

When you work with the robots using KUKA|prc your units in Rhino must be configured for the Metric system using millimeters. The easiest way to do this is to use the pull-down menus and select File > New... then from the dialog presented chose "Small Objects - Millimeters" as your template.

The KUKA|prc User Interface

When installed KUKA|prc has a user interface (UI) much like other Grasshopper plug-ins. The UI consists of the palettes in the KUKA|prc menu.


There are four palettes which organize the components. These are:
  • 01 | Core: The main Core component is here (discussed below). There are also the components for the motion types (linear, spline, etc.). 
  • 02 | Toolpath: Approach and Retract components are here (these determine how the robot should move after a toolpath has completed). There are also components for dividing up curves and surfaces and generating robotic motion based on that division. 
  • 03 | Virtual Robot: The various KUKA robots are here. We'll mostly be using the the KUKA gelis KR6 R900 component as those are what's used in the Agelis workcell. 
  • 04 | Virtual Tools: The tools (end effectors) are here. We'll mostly be using the Custom Tool component.  
  • 05 | Utility: The components dealing with input and outputs are stored here. These will be discussed in detail later. 

KUKA|prc CORE

The component you always use in every definition is called the Core. It is what generates the KUKA Robot Language (KRL) code that runs on the robot. It also provides the graphical simulation of the robot motion inside Rhino. Everything else gets wired into this component.

The Core component takes five inputs. These are:
  • SLIDER - This is a numeric value. Attach a default slider with values from 0.00 to 1.00 to control the simulation. 
  • COMMAND - This is the output of one of the KUKA|prc Command components. For example a Linear motion command could be wired into this socket. 
  • COLLISION - This is an optional Mesh which represents the collision geometry, e.g. the workcell.
  • DEFAULT TOOL - This is the tool (end effector) to use. It gets wired from one of the Tool components available in the Virtual Tools panel. Usually you'll use the KUKA|prc Custom Tool option and wire in a Mesh component will show the tool geometry in the simulation.  
  • ROBOT - This is the robot to use. The code will be generated for this robot and the simulation will graphically depict this robot. You'll wire in one of the robots from the Virtual Robot panel. For the Agelis Workcell you'll use the Agelis KR6 R900 component.  

The right-click context menu for the Core component gives you access to its settings. Choose KUKA|prc Settings from the menu:

The settings are organized in a floating dialog with a hierarchy of options on the left side. You click on an option in the list and settings for it appear on the right side. These settings will be covered in more detail later.

Basic Wiring Setup

There is a common set of components used in nearly all definitions for use with the Agelis Workcell. Not surprisingly, these correspond to the inputs on the Core component. Here is a very typical setup:


  • SLIDER: The simulation Slider goes from 0.00 to 1.00. Dragging it moves the robot through all the motion specified by the Command input. It's often handy to drag the right edge of this slider to make it much wider than the default size. This gives you greater control when you scrub to watch the simulation. You may also want to increase the precision from a single decimal point to several.
  • COMMAND: The components which gets wired into the COMMAND slot of the Core is really the heart of your definition and will obviously depend on what you are intending the robot to do. In the example above a simple Linear Move component is wired in.
  • DEFAULT TOOL: We normally use custom tools with the Agelis Workcell. Therefore a Mesh component gets wired into the KUKA|prc Custom Tool component (labelled TOOL above). This gets wired into the DEFAULT TOOL slot of the Core. The Mesh component points to a mesh representation of the tool drawn in the Rhino file.
  • ROBOT: The robots we have in the Agelis Workcell are KUKA KR6 R900s. So that component is chosen form the Virtual Robots panel. It gets wired into the ROBOT slot of the Core.


Robot Position and Orientation

The workcell has two robots named Mitey and Titey. Depending on which one you are using you'll need to set up some parameters so your simulation functions correctly. These parameters specify the location and orientation of the robot within the workcell 3D model.

Mitey

Mitey is the name of the robot mounted in the table. Its base is at 0,0,0. The robot is rotated about its vertical axis 180 degrees. That is, the cable connections are on the right side of the robot base as you face the front of the workcell.

To set up Mitey do the following:

Right-click on the Core component, chose Settings from the context menu, then select the Base Settings choice on the left side of the dialog. The dialog is shown below:

You specify the X, Y, and Z offsets in the Base X, Base Y, and Base Z fields of the dialog. Again, for Mitey these should all be 0. In order to rotate the robot around the vertical axis you specify 180 in the Base A field. You can see that the A axis corresponds to vertical in the diagram.
  • Base X: 0
  • Base Y: 0
  • Base Z: 0
  • Base A: 180
  • Base B: 0
  • Base C: 0
After you hit Apply Settings the robot position will be shown in the viewport. You can close the dialog with the [X] in the upper right corner.

Titey
The upper robot hanging from the fixture is named Titey. It has a different X, Y and Z offset values and rotations. Use the seeings below when your definition should run on Titey.

Note: These values are all in millimeters.

  • Base X: 1102.51
  • Base Y: 0
  • Base Z: 1125.66
  • Base A: 90
  • Base B: 180
  • Base C: 0

Code Output

The purpose of KUKA|prc is to generates the code which runs on the robot controller. This code is written in the Kuka Robot Language (KRL). You need to tell KUKA|prc what directory and file name to use for its code output. Once you've done this, as you make changes in the UI, the output will be re-written as necessary to keep the code up to date with the Grasshopper definition settings.

To set the output directory and file name follow these steps:

  • Right -click on the Core component. 
  • Choose Settings from the context menu. 
  • Select the Output settings on the left of the dialog. 



  • Check the Save File box. 
  • Click the Set Output Directory button and select a path from the Browse for Folder dialog presented. 
  • Enter the File Name you wish to use in the Project/File Name box. 
  • Press the Apply Settings button and close the dialog. 

That's all you need to do to generate code.

Note: If you check the Automatic File Numbering for Mass Customization check box KUKA|prc will generate a new file every time you change something inside Grasshopper. This can easily generate hundreds or even thousands of files - so be aware of that before you check it!

See the topic Taubman College Agilus Workcell Operating Procedure for details on how to get the code onto the robot and run it.

Start Position / End Position

The program needs to know where to begin before it runs. That is, where and how is the tool positioned before the motion starts. Also, where should the tool move to when the programmed motion completes.

You specify these values in the Settings of the Core. Bring up the settings dialog and choose the Advanced Settings section on the left.

Under the Start and End sections you enter the axis values for A1 through A6. This of course begs the questions "how do I know what values to use?".


You can read these directly from the robot pendant (smartPAD). That is, you jog the robot into the start position and read the values from the pendant. Enter the values into the dialog. Then do the same for the End values.

See the section Jogging the Robot in topic Taubman College Agilus Workcell Operating Procedure.

Motion Types

Note: The information in this section contains material excerpted from the KUKA documentation. 

KUKA|prc provides several motion types. These are:

PTP: Point to Point

You get this motion type by using the KUKA|prc PTP Movement component



The robot guides the TCP along the fastest path to the end point. The fastest path is generally not the shortest path and is thus not a straight line. As the motions of the robot axes are rotational, curved paths can be executed faster than straight paths. The exact path of the motion cannot be predicted.

LIN: Linear

You get this motion type by using the KUKA|prc Lin Movement component. 


The robot guides the TCP at a defined velocity along a straight path to the end point. This path is predictable.

CIRC: Circular

You get this motion type by using the KUKA|prc Circ Movement component. 



The robot guides the TCP at a defined velocity along a circular path to the end point. The circular path is defined by a start point, auxiliary point and end point.

SPLINE: Smooth Spline 

You get this motion type by using the KUKA|prc Spline Movement component. 

The robot will move along the positions in a smooth spline movement.




4:32 PM

EnvisionTEC high end 3d printers and bioplotter

I was just looking around what is industry standard and I found couple of videos from EnvisionTEC. They have some fine and expensive machines BUT as technology goes, one day you will have it on YOUR desktop.




... now, while you may have your workshop machine, most of you probably won't need a bioplotter since it is currently used as sophisticated medical instrument for special cases... or maybe DIY biohacking will explode. Making implantable 3d objects and body mods ... sounds like SF but we will see what future holds ...



http://envisiontec.com/3d-printers/3d-bioplotter/




New 3d printers by XYZprinting: Da Vinci Junior, Nobel 1.0 SLA and Food Printer

XYZPrinting is well known for their Da Vinci machines just released three new machines, Junir with smaller volume, SLA Nobel and Food Printer which extrudes pastes or chocolate and makes food decorations.

Da Vinci Junior technical specifications:
  • Print Technique: FFF
  • Printer Size: 42 x 38 x 43 cm
  • Printer Weight: 12kg
  • Build Envelope: 15 x 15 x 15 cm
  • One Touch Setup
  • Eco friendly power consumption of just 75 watts.
  • Features: SD card support, HFC technology used to detect low filament, one-year warranty.
  • Price: 349 USD
Da Vinci Junior 3d printer




























Here is video review of Da Vinci Junior:



Nobel 1.0 SLA 3d printer technical specifications:
  • Print Technique: Stereolithography
  • Printer Size: 28.2 x 33.7 x 60.5 cm
  • Printer Weight: 20 lb/9.1 kg
  • Auto resin refill
  • Complete cover to ensure dust and pollutants do not spoil the print.
  • Onboard LED Display of 5” with a Touch Panel.
  • Connectivity of Device: USB 2.0 , Host/Client , WiFi
  • Build Envelope: 12.8 x 12.8 x 20cm
  • Print Resolution: X/Y : 300 microns, Z: 25 microns
  • Printing Material: Photopolymer Resin
  • Price: 1499 USD

XYZPrinting Nobel SLA 3d printer




































Here is a video overview of Nobel. Tests or reviews are not yet available.



XYZPrinting Food 3d printer technical specifications:
  • Printer Dimension 420 x 427 x 605 mm
  • Print jets multiple (50-100 cc*3)
  • Nozzle diameter 1/2/4/8 mm (optional)
  • Display 5" touch screen
  • Connectivity USB
  • Maximum creation size 200 x 150 x 150 mm
  • Layer thickness 0.8-6.4 mm
  • Software XYZware
  • Operating System Win 7/Win 8/Mac OSX 10.8
  • File Types STL and XYZ format
  • Price: unknown
Here is a video of food printer in action of extruding chocolate letters on a bread slice:



XYZPrinting also presented some sort of food growing cube with salad growing inside it. Looks like some sort of hydroponics or growth medium desktop / indoor plant growing setup.
There are no independent test or reviews of any of those machines yet.


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