MAS 863 - David Carr My final project is a 3-axis CNC milling machine that costs less than $100 (currently $87) to build. It can mill PCBs, wood, and even mild steel. These PCBs were milled using the machine. The traces are 10-15 mils. The left and lower right boards were milled at approximately the same speed as the Modela. Some more test pieces: MDO and mild steel with a 1/32 inch mill on the left, wax with a 1/8 mill on the right. Design My design was heavily influnced by Johnathan Ward's MTM-AZ, although it shares no common parts with his machine. Machine drawings (DXF) Bill of materials Brute force stepper driver The brute force stepper driver is a simple 3 axis stepper driver for use with EMC2. Here are the files for milling the board: Bottom (PNG) Holes (PNG) Mill the first/bottom layer with a 1/64 inch mill first. Components MDO frame Y,Z axis gantry assembly Bed and X axis assembly Spindle assembly Stepper motor drive board PC control software Processes Schedule Over and out.
Downloads « DIYLILCNC Downloads Detailed instruction sets covering every step of our build, from parts lists to assembly and Linux setup; digital source files used for laser-cut/CNC fabrication. Creative Commons License Info The plans and source files for this project are released under a Creative Commons Attribution Share-Alike license. This license is often compared to open source software licenses. This license lets others remix, tweak, and build upon our work and the work of previous authors, even for commercial reasons, as long as they credit all authors/contributors appropriately and license their new creations under identical terms. Community Sandbox We’ll be using this section to publish modified files that relate to the DIYLILCNC. These files have not been reviewed in any way. These files have been reviewed visually but not tested. These files have been cut and tested by a forum member. Solidworks 2009 Credit: Jacques Favreau.
howie m » Amateur CNC mill show and tell Friday, November 19, 2010 Amateur CNC mill show and tell Thought I’d have a go at something a bit mechanical for a change. I bought a cheapy pillar drill from Screwfix a while back - around £50 if I remember right. Mmm… precision drilling… mmm… OK, back to me: CNC mills are all the rage at the moment - loads of people seem to be building them, from huge ones through to tiny little ones you can knock up for very little money. I’ve got loads of electronic junk in boxes, so I had a dig around. It’s a scanner - a disco/nightclub light that can change colour and, using a motorised mirror, shine the beam around the room in carefully choreographed patterns. These things are the heart of a CNC machine - you can control precisely how much its shaft rotates, unlike a normal motor that spins freely when you give it power. I managed to scavenge a load of bearings and rods from old printers. I bought a few lengths of leadscrew from Marchant Dice (yay! Drill a hole in it: First: X-axis stuff Y-Axis stuff