Prusa i3 - STLs for Improved Laser Cut Frame Design

thingiverse

The provided set of STL files are for an improved Prusa i3 design published by Twelvepro.com. This version features a laser cut frame that allows the use of all original Prusa i3 parts designed by Joseph Prusa and available on GitHub. Notably, this design does not require four Z-axis parts as they are redundant and replaced with laser cut components. The STL files differ from the original in several ways: all clamping parts are designed for GT2 2mm belts; the X idler uses M5 screws to hold two 625ZZ ball bearings, while the Y idler also employs M5 screws and two 625ZZ bearings (in contrast to the original i3 design that used a single mounted bearing and printed idler); the X motor part features an adjustment screw for fine-tuning the level of Z against the Z end stop switch; Y corners have side cutouts for better tie wrap wrapping around Y shafts; the Y belt clamp provides 0.9mm clearance for the belt, allowing easy belt pulling with pliers; and the Y motor changes are purely cosmetic. The Y bushing holders offer improved grip for LM8UU bearings. The STL files can be found on Thingiverse, while Twelvepro plans to repost the DXFs and BOMs in the future.