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This time, I assembled the spindle, connected the spindle control cables to the CNC controller, positioned the machine, and finally, made some scrap metal!
The final piece was made using a 10mm indexable insert milling head, 20,000 rpm, 1.5mm torque, and a 1400mm/m feed rate.
Enjoy!
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Building a DIY CNC Milling Machine
The goal of this project was to design and build a CNC milling machine without turning any parts. Typically, milling machines require much larger mills to achieve smooth, parallel spindle surfaces.
Using aluminum tool plates (which theoretically machine smoothly) and fastening key parts with bolts instead of welding should reduce the workload on the machine, as the mill was built without any!
The linear rails and ball screws were cheap Chinese 20mm rails available on eBay and other places.
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