Improved X ends for Prusa with clamped rods
by jonaskuehling, published
Prusa's snap in LM8UU holders have one huge problem: motor- and idler-mount are supported via those holders, so the whole holder can twist unevenly and warp the bearings agains each other. This is avoided with my design.
The rods are fixed using one screw for each, tightening the built in clamps. Their screw heads are easily accessible from below and there are nut traps at the top. I made open end rod holes, to be able to push the rods all through. The system achieves a rock solid fit AND easy adjustability - what else you should need?
The leadscrew nut trap uses two bridges inside instead of a circular hole, so there's no "post-print-processing" (i.e. drilling) necessary in this point.
The design is entirely parametric, so you can even use professional leadscrews like trapezoidal ones with bigger nuts. I additionally attached STLs for use with metric trapezoidal leadscrews TR8x1.5 and nuts of 17mm wrench size (15mm height). For standard Prusa requirements use the "threaded rod" files.
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Hi i'm trying to slice this things and I have problems slicing the x-end-motor. Error message is:
"Warning,. The input file contains a hole near edge.
22.000000, 64.200000, 7.200000-0.000000, 64.200000, 7.200000 (not
manifold). You might want to repair it and retry, orto check the
resulting G-Code before printing anyway"
How can be this problema fixed?
Thankyou in advance.
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The STLs are generated for 0.25mm layer height - change the parameter in OpenSCAD for your needs.
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