Project – 3D Printer

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.

MP3DPIMG_20160328_111500~3IMG_20160829_152820

Milled Parts

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.

Part NameQTYDescription
Y-Plate1Bed plate
XY_Frame2(M)Front and Back
Y_Frame2(M)Sides
XZ_Frame1Main Piece

(M) Mirror one of these parts if you have a single sided material.

These .DXF’s are in millimeters.

 

Printed Parts

I used 20% infill and 3 perimeters for all parts, very forgiving. No support needed!

NameQtyTimeWeight
Bed_ Bearings3
Y_Block1
Y_Clip4
Y-Bearing1
Y_Mount1
Brace2
Upper_L1
Upper_R1
XZ-End1
X1
XZ_Motor1
Z_Mount_L1
Z_Mount_R1
Corner_A2
Corner_B2
MK_Fan1
MK_Mount1

.STL’s available here, http://www.thingiverse.com/thing:1524754

4/27/2016- updated the mk extruder mount file, released to thingiverse

 

Hardware

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.

Name QTYDescription/Link
12v 30A & cord1http://amzn.to/1MRAu6i
Ramps 1.4 w/ 4 drivers1Shop
MK Extruder 1Shop
Print Fan/Ramps fan1/2Shop
lm8uu10 http://amzn.to/1pJdJMu or Shop
Bearing 6082Shop
Glass1 http://amzn.to/1Us8JsL not needed with an MK3
MK2 Bed/thermistor1 http://amzn.to/1UTCHG2 or mk3 Shop
springs3 Shop
Coupler 5mm to 8mm2 http://amzn.to/1Us926Q or Shop
leadscrew/nut 300mm2 http://amzn.to/1Us99j0 or Shop
Y-Rod 8x350mm2 http://amzn.to/1Us9eDp or Shop
Z_Rod 8x320mm2 same as above
X_Rod 8x370mm2 same as above
roller limit switch3 Shop
NEMA 17 Stepper Motor4 http://amzn.to/1UTDCq7
GT2_16 tooth2 Shop
GT2 belt~5ft Shop
*6-32 x 2.251 For Z end stop
*6-32 x 16 For bearings, bed, x end stop
*6-32 x .7545
*6/32  Lock nut50
M2.5 x 10 / cable ties6 For end stops, I use small cable ties.
M3 x 1016 For Steppers
Cable ties~2040lb

*#6 hardware can be metric equivalent M3.5

You will also need some extra wire for the power supply, end stops, and fans.

 

Firmware

MP3DP_RC8

16t pulleys, 32nd stepping, 8mm lead screws, full graphic LCD. Check your z axis after flashing some lead screws actually need 788 instead of 800 steps per mm in the firmware.

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

 

Assembly

More to come

IMG_20160325_161225 IMG_20160325_161234 IMG_20160325_161244 IMG_20160325_161253 IMG_20160328_111316 IMG_20160328_111338 IMG_20160328_111356 IMG_20160328_111403

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