Prusa i3 - STLs for Improved Laser Cut Frame Design
by rp_one_labs, published
IMPORTANT: With "improved laser cut frame", you can really, trully use all of the original Prusa i3 parts designed by Joseph Prusa and posted on github.
You don't need four parts for Z Axis because they are redundant and implemented with laser cut parts.
About posted files and how their differ from Prusa's design:
1. All clamping parts designed for GT2 2mm belts only.
2. X Idler uses M5 Screw to hold two 625ZZ Ball bearings. Original i3 used one M4 mounted bearing and printed idler.
3. Y Idler also uses M5 Screw to hold two 625ZZ. Original i3 used one M4 mounted bearing and printed idler.
4. X Motor Part has adustment screw to fine tune level of Z against Z end stop switch.
5. Y Corners have side cutouts for better wrapping of tie wrap around y shafts.
6. Y Belt Clamp has 0.9mm of clearance for belt which provides enough clamping and still you can pull belt trough it with pliers.
7. Y Motor - changes are purely cosmetical.
8. Y Bushing holders - better grip of LM8UU, also they look better to me.
Only STLs are here. Printer posted by Twelvepro thingiverse.com/thing:39889
He will repost these files, DXFs as well as BOMs, eventually.
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As far as I remember, prusa PG35L extruder was designed for his own stainless steel tube hot end, mounted via aluminum plate, that extruder version had no circular hole for typical hot end groove mount. Meaning, there is a need for mount plate. But I don't see it as a big problem. I think configuration files in that revision should not have any parameters for extruder.
I may have found the scad file. but where do I need to have the scad config file for the compile to "find it" to specify hot end etc..
Question goes to sgraber as more informed and active member of prusa i3 open source development. I have my own solution for PG35L extruder, but I am not ready to post it yet. It is going to be part of next iteration of my own branch of prusa i3, if I ever finish it ;-) Prusa previously had single PG35L extruder in his github, you should be able to find it, I think.
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