The file 'VM Extruder 3D Printer Model' is (pdf,STL,x_t,zip) file type, size is 4.7MB.
After using a gregfrost extruder on my Prusa for a while, I decided I wanted to make a few tweaks to the basic design:
replace the hobbed bolt (I found it too strip-prone) with a large-diameter filament driver that requires no machining
a spring-loaded over-center latch on the idler arm, allowing opening the idler without unscrewing anything
After assembling it and running a few test parts, I put it to work building parts for sublime's printed lathe, around 45 hrs of runtime with 14 hrs for the longest single build, and didn't experience a single hiccup. I have since run it at up to 100mm/s, which it handles fine.
The extruder body has mounting provision for the Makergear hotend.
Zip file contains the Solidworks 2011 source files.
| driver_drum.pdf | 12.5KB | |
| drum_drill_jig.STL | 32.0KB | |
| solastruder.x_t | 649.2KB | |
| solastruder.zip | 4.5MB | |
| solastruder_body.STL | 83.3KB | |
| solastruder_hobbing_jig.STL | 52.8KB | |
| solastruder_small_parts.STL | 58.8KB | |
| wire_clip.pdf | 6.9KB |
