Mini Mill/Router

thingiverse

My personal mini milling project uses the following basic components: UnoR3 + CNC shield(V3)+ 3x drivers; 3 x Nema17 motors; 12 x LM8UU bearings; 3 x 8mm trapezoidal rods with 2mm lead; 1 x DC motor controller like this one - http://www.ebay.com/itm/Max-8A-12V-24V-DC-6-30V-Motor-PWM-Speed-Controller-With-Digital-Display-Switch-/131585225915?hash=item1ea31734bb:g:oaMAAOxyaTxTWMQg ; 1 x spindle clamp like this - https://www.aliexpress.com/item/spindle-machine-tool-clamping-rod-ER11-shaft-5-motor-lengthened-clamping-knife-engraving-machine-drill-set/32662986876.html?spm=2114.01010208.3.20.pIn1J8&ws_ab_test=searchweb0_0,searchweb201602_3_10065_10068_10069_10084_10083_10086_10017_10080_10082_10081_10060_10061_10062_10056_10055_10054_10059_10078_10079_10073_10070_10052_10053_422_10050_10051,searchweb201603_7&btsid=60efac34-5e90-46fc-85bf-fe4b487d443c ; 1 x Johnson motor 81026, 12 VDC, 19000 rpm (size: 48 mm diameter, length 69 mm, shaft 5 mm and 10 mm long, 3.73A); 1 x PC PSU ~350-400W good one or 500W cheap; Other parts shown in the images. Added .dwg(AutoCad 2013+) file for some MDF and 1 mm steel laser cutting. You can create a tool plate and clamps for your motor(Dremel, laser, etc.) Springs and cable ties are because the motor is almost 0.5 kg. Work area: 100x100 mm. Flashed with GRBL. I am using Grbl Controller. Still learning Inkscape to create files for it. This project is complete; I will not make any changes. November 20, 2016 Made and added clamps for a 44mm diameter motor and distance between central holes - 30 mm. While making the brackets, I noticed that my motor has a 48 mm diameter instead of 51 mm. I have corrected this in the description. April 13, 2017 Finally, I have some time to test it and found two things to correct: 018_Vice_Clamp.stl - Lower the allowances for the nut in it by 0.2 mm on each side. If you printed it with a 0.4 mm nozzle, it should be fine; otherwise, print it again; 016_Vice_Base_A.stl - I did not see at first that the counter self-securing nut will not rotate - the place for it is too tight. Made it wider +1mm on left and right directions; now it should be fine. You have to reprint it if you already did, or cut a mm on the left and right of the nut 'bed'. I also added two cuts to indicate 0, 0 (XY), when holding blocks with clamp at the back of the vice. For milling, I use Freemill - easy to use but slow making; Candle - it is ex GRBL Controll(not grbl controller - these are two different software); for cut type jobs - Inkscape and then Candle. Print Settings Printer: TRENDi Maker V3 Rafts: No Supports: No Resolution: 0.2 Infill: 20-50% Notes: Everything is PLA made with a 0.2 resolution.