My project was to build a smaller and more precise mill for use in making smaller projects and to build it with parts and materials I had on hand except for Steppers, motion controller,and a few screws,bearings and maybe a few pieces of Aluminum
Now that my slow boat from China has arrived the project is complete except to disassemble and paint the unit. I am using 1/2" Delrin for the "waste" board, that sits on top of the 1/4" 6061 aluminum main table. I am putting .300" holes on a 1.125" spacing so that I can add 1/4" threaded inserts from the bottom side of Delrin, The bridge will be modular and removable from the "Y" lower half . I am using an Acorn Motion Controller instead of Mach3 or Mach4. Centroidcnc has built Motion Controllers for many years and the Acorn is their latest product for the Hobbyist.
20x24 inch Fixed Gantry Mill
I have shared many pictures of this project it is now complete I have had my first cuts on this machine and it is solid , still learning the new motion Controller. The Acorn is more like you would find on a commercial built CNC or CNC Lathe.But it does have all of the functionally one needs
- Build License:
- CC - Attribution - CC BY
Reason for this BuildI built this to use in my PC projects and small engraving projects
and to see if I could keep the cost below $400.00 but not sure I did that. Also I wanted the smallest foot print I could build that would also be practical.
Inspired byEveryone that I have seen and watched for the past 50 years
Qty Part Name Part Link Comments 3 425 oz in Steppers Link I bought the steppers from Ebay as a set of 3. double ended 1 Acorn Motion Controller http://www.centroidcnc.com Link Very powerful medium price Controller comes with it's own Mean Well 24vdc power Supply 1 36 vdc 11 amps switching power supply http://www.ebay.com Link For Steppers 2 600 mm lead screws http://www.ebay.com Link My Choice for these screws was , 8mmx1mm for my project 2 Zero blacklash nuts for 8mmx1 lead screws http://www.ebay.com Link 4 Leveling legs http://www.ebay.com Link 10mmx1.5 x50mm swivel pads W8R2