,cnc machinist,cnc manufacturing,cnc mechanic,cnc mill,cnc milling center,cnc milling companies,cnc milling tools,cnc parts,cnc plasma cutter,cnc plasma cutting,cnc plasma table,cnc production,cnc router table,cnc screw machine,cnc service,cnc swiss,cnc turning,cnc turning center,cnc turning centers,cnc vertical lathe,horizontal cnc,how to cnc machine,machining cnc,manufacturing cnc machines,okuma cnc,plasma cnc machine,production cnc machining,troubleshooting cnc machines,used cnc machine tools,used cnc milling machines,vertical cnc lathe,what can a cnc machine make
Mario Lukas developed OpenExposer, low cost open source SLA 3d printer. OpenExposer is much more than just a 3d printer, it can also be used as UV PCB exposer, laser harp or show laser. It will have different modules for different uses.
Mario writes in project comments:
"The main focus of the OpenExposer Project is on the little red box which should contain all electronic and optical parts. This box should be clampable to different modules. The 3D printer which i am building currently is only one of those clampable modules. For PCB etching i am planing to design a module which works like a laminator."The frame is made from standard RepRap rods and parts. The main part of 3D printer system is a small slit cut into the bed, and a build platform that moves in the Z axis. The bed contains a UV laser and a polygon mirror recycled from a junk laser printer. By moving the bed in the Y direction, laser can be targeted anywhere on an X-Y plane. By adding a tank filled with UV curing resin on the bed there is a complete SLA printer.
It is currently still under heavy development but it looks very promising. There will be many problems to solve like varying focal length laser traces the arc from the polygon mirror since laser printers use a specialized type of lens to insure the focus is consistent, allowing a consistent spot size over the entire sweep of the beam.
Mani features:
- unit for multiple laser exposing processes
- Arduino compatible
- low cost (standard laser printer) parts
- case parts lasercut or 3d printable
- up to 2 stepper motors can be connected
- additional I/O ports for custom extensions
- simple protocol
- extendable host software
http://hackaday.io/project/1129-OpenExposer
OpenExposer GitHub repository:
https://github.com/mariolukas/openexposer
 |
| The "Red Box" with SLA module. There are different modules planed like the one for PCB etching. |
 |
| First test SLA print results of OpenExposer |
Update (20.8.2014.):
Here is OpenExposer shown as working SLA 3d printer and its software tool chain:
