This is my take on a Prusa I3, with a cnc mill friendly frame. MP3DP- Milled/Printed 3D Printer. I am sorry the parts are not interchangeable with the original Prusa parts.
Questions comments – Link
This uses common 3D printer parts, hardware, milled parts, and printed pieces.
Material should be under 7.2mm thick, thicker and you will need longer hardware and might lose some Y travel. All radii and holes are 1/8″ or larger, so use end mills 1/8″ or smaller.
|XY_Frame||2||(M)Front and Back|
(M) Mirror one of these parts if you have a single sided material.
These .DXF’s are in millimeters.
I used 20% infill and 3 perimeters for all parts, very forgiving. No support needed!
.STL’s available here, http://www.thingiverse.com/thing:1524754
4/27/2016- updated the mk extruder mount file, released to thingiverse
You can use any hardware/components you want, below are just suggestions. Affiliate links should help so I don’t have to put a description for each part.
|12v 30A & cord||1||http://amzn.to/1MRAu6i|
|Ramps 1.4 w/ 4 drivers||1||Shop|
|Print Fan/Ramps fan||1/2||Shop|
|lm8uu||10||http://amzn.to/1pJdJMu or Shop|
|Glass||1||http://amzn.to/1Us8JsL not needed with an MK3|
|MK2 Bed/thermistor||1||http://amzn.to/1UTCHG2 or mk3 Shop|
|Coupler 5mm to 8mm||2||http://amzn.to/1Us926Q or Shop|
|leadscrew/nut 300mm||2||http://amzn.to/1Us99j0 or Shop|
|Y-Rod 8x350mm||2||http://amzn.to/1Us9eDp or Shop|
|Z_Rod 8x320mm||2||same as above|
|X_Rod 8x370mm||2||same as above|
|roller limit switch||3||Shop|
|NEMA 17 Stepper Motor||4||http://amzn.to/1UTDCq7 Or Shop|
|*6-32 x 2.25||1||For Z end stop|
|*6-32 x 1||6||For bearings, bed, x end stop|
|*6-32 x .75||45|
|*6/32 Lock nut||50|
|M2.5 x 10 / cable ties||6||For end stops, I use small cable ties.|
|M3 x 10||16||For Steppers|
*#6 hardware can be metric equivalent M3.5
You will also need some extra wire for the power supply, end stops, and fans.
5/11/17 Marlin 1.1 MP3DP511 16t pulleys, 32nd stepping, 8mm lead screws, full graphic LCD. Check your z axis calibration after flashing
OLD- RC8 BF 1/25/17, just in case
1/25/17 updated to the RC8 BF, much better response from the LCD and included Jeffeb3’s lcd knob settings.
12/11/16 updated to marlin RC8
7/9/16 – Updated to Marlin RC1.06, tweaked the accelerations.
4/27/16 – initial release nothing beyond basic tuning, works great
More to come