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X axis belt tensioner mod

tighten x axis belt without any instrument and reduce stress to z axis rod

3D printer parts and enhancements

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This part complements the x end idler from prusa i3 rework and allows you to pull the belt without using a screwdriver. It also reduces the load on the axis Z rods.

STL files generated for Prusa i3 rework. The distance between the terminals X-axis is 45 mm. You can adjust them for yourself if you want. Open attached fcstd files in FreeCAD.

How to build
1. Print plastic parts.
2. Cut M6 thread for bolts in the brace belt tensioner .
3. Trim the head M3 screws to form a square

4. Insert the M3 screw in the thumb wheel and secure with glue or heat.

5. Set the item in the printer. Adjust the gap between brace belt tensioner and x end idler (M6 bolts rest on the X axis rods).

Design based on https://www.thingiverse.com/thing:160636/ by ffleurey

Materials and methods

printed parts:
1x brace tensioner
1x thumb wheel

buy or get somewhere:
2x M6 hex head bolts, length about 12-20 mm
1x M3 ISO7045 screw, length 35mm



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Mini sp logo grain 400x390Stamos added this to the 3D printer parts collection ago
42f28d315fdcf6358836ce0df1bb17fd?default=blank&size=40Piulmus Poth added this to the Dingen collection ago
9fe29feda634ba702a3c525ce6d12ac3?default=blank&size=40Aleksei Bondarenko published this design ago