February 2, 2026
Description
Made the tool taller to 10mm to work better with the 11mm wide idler pulleys that uses the GT15 9mm wide belt on the QIDI Plus 4. Also removed the PRUSA Printer script and added the QIDI wording & logo to the tool handles. Printed in yellow QIDI PETG Tough filament, .4 nozzle, .16 layer height with a 25% Gyroid infill.
I recently needed to tighten a belt and discovered that one of my Y-idler was seized in the block and I needed to get it out. After marring the pulley surface with a open end box wrench (13mm) and wedging the wrench in the box, it set me on the path to find or design a tool very much like the one I found. This also helps to set the idler shaft into the block, it snaps in. Works with any 12mm diameter pulley.
Special Thanks to @SHR3Deu for their design.
License:
Creative Commons — Attribution — Share Alike
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