SAE Prusa Mendel
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Release status: working
| Description | Prusa Mendel is simpler remix of normal Mendel.
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SAE Prusa mendel is an offshoot of the Prusa_Mendel, only difference currently is it only uses 1 screw size (SAE #6),and only uses 608 bearings. Spacexula did the conversion, and is currently trying to maintain this branch.
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Contents
Development
The Prusa Mendel is on hosted github: http://github.com/prusajr/PrusaMendel
You can follow the changes on Changelog
You can sign up for github for free and fork the project to begin working on it.
History
Bill of Materials
SAE Prusa Mendel BOM is slightly differnt than Metric Prusa Mendel, but as close as possbile
(in works, not complete yet)
Printed Parts
6x frame-vertex RP 2x coupling RP 3x endstop-holder RP 1x x-carriage RP 1x x-end-idler RP 1x x-end-motor RP 1x y-motor-bracket RP 2x z-motor-mount RP 4x belt-clamp RP 8x bar-clamp RP 2x rod-clamp RP 2x pulley RP
Bushings'
3x pla-bushing RP-PLA or 3x brass bushings RP any material
Guesstimate of other parts: ("vitamins")
1 box 5/16 nuts (100) 95462A030 1 1 box 5/16 washers (100) 90126A030 1 7x 3ft threaded rod 98841A030 7 3x 3ft smooth rod 9120K12 3 1 box (100) #6 washers 90126A509 1 1 box (100) #6-1" screws 90272A153 1 1 box (100) #6 nylock nut 90631A007 1 1 box (100) #6 fender washer 91090A100 1
1x standard Mendel extruder
5x Nema 17 NEMA Stepper 1x standard Mendel electronics or Mendel alternative electronics.
(The Prusa Mendel uses the 4 drivers in the standard Mendel electronics package to drive 5 motors by using "two steppers wired in parallel to one driver"[1]).
Printed Parts
Printing a Prusa on a Mendel
An easier option then individually printing each part if you are printing Prusa on a RepRap Mendel is the pre-assembled build file containing the Prusa parts. With this option you only need to print the Mendel plate and 3 of the PLA bushings to get a complete Prusa Mendel:
- Mendel Plate (contains all printed parts except the PLA Bushings)
- PLA Bushing (you need 3)
Printing a SAE Prusa on a Makerbot
Production files uploaded to Thingiverse at [2]
Printing a Prusa on anything else
Last but not least, if you have a machine that doesn't fit into any of the previous options all the .stl files necessary to print a Prusa Mendel are available on the PrusaMendel Github where you can download them and print them individually.
Assembly
This needs some work by someone familiar with Prusa, for now though you can at least use the images bellow to identify each part in the design and then try every possible combination until it works.
IF YOU FIND THE WORKING PERMUTATION OF PARTS PLEASE POST ANY AND ALL PRUSA MENDEL ASSEMBLY INFORMATION HERE.
X-Carriage
X-End-Motor
Parallelnes of rods is ensured by the teardrop type of holes for rods plus securing bolts from bottom (there is nut bracket inside the part). By pushing the rods upside, they will self center.
X-End-idler
Universal Bar-Clamp
Frame-vertex
I use my mod of Vik's vertexes, slimmer, same sturdy as original :-) http://www.thingiverse.com/thing:2003
Media
- Two printers simultaneously - Prusa and shaper cube working side by side.
- Prusa homing using enstops
- Prusa development overview
- Prusa Y axis stress test
- Prusa Z axis stress test
- Early preview of the Prusa Mendel redesign
