by dkennell, published
All parts are easy to print without support. The 60 W onboard power supply runs the motors and extruder heater. The heated bed used a 120 vac and a solid state relay. The extruder is very accessible. The heatsinks on the extruder are optional, but help keep thing cool when printing ABS.
See BOM and exploded veiw of X axis below
I added a pdf of an exploded frame drawing 1/19/12
Wire clips and T-slot cover for Misumi extrusions are at thingiverse.com/thing:16344
Below is a zipped archive of all the Inventor source files.
Full BOM added per several requests.
.stp files added.
See video of this printer at youtu.be/JysNv3Hi67k
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Here is a link to the new printer.
I believe it is about 195 mm x 195 mm. I don't know exactly because I dismantled mine some time ago to make an improved version. The beta testing is done on the new model, with 5 printers now running. I will post the new version soon, I need to finish the documentation. The new version has 225 mm x 225 mm printable area with a smaller overall size.
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PLA can be drilled and tappped if you go slowly. This design requires the use of a 6-32 and 8-32 tap. These can be obtained from any hardware store. PLA also holds sheet metal screws very well if you drill the appropriate size hole. I use a 1/8" drill bit for a #8 screw. This is much easier and stronger than trying to use captive nuts. I will work on a exploded drawing to aid assembly if there is interest. The parts were designed with Autodesk Inventor, and I will provide files if requested. The BOM has the parts and sources for converting a prusa mendel to this model.
There are a couple of omissions on the Full BOM. You actually need 4 stepper motors, not 3 as listed. You also need two 608ZZ bearings, available at Ultimachine.com. Let me know if there are other omissions.
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