Generating 3D Solid...
Timing Pulley Generator Ver. 2.0.28 · built 2026-10-28 00:36
HTD 5M — 20T
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    Dimensions
    Threaded screw holes

    How tight a hole a set screw cuts its own thread into — it depends on your printer and filament, not on the pulley. It applies to every set screw set to threaded, on both pulleys, and is saved with each design; new designs start from your default. Captured-nut screws pass through a plain clearance hole and heat-set inserts use the hole you enter, so these settings don't change them.

    Looking into an M5 hole: the screw's outer and root diameters over the hole that is cut
    0% = the screw's outer diameter (no grip) · 100% = its root diameter (full thread)
    📂 Import Design

    Every file exported from this tool — STEP, DXF, SVG, and STL — contains embedded design parameters. Selecting an exported file here will read those parameters and restore your design exactly as it was when exported.

    ⚠ Report A Bug
    CheapCADTools — Software Design Philosophy
    Don't try to catch every setting that could make a part go wrong. Over-constraining the inputs leads to a poor user experience — for example, typing a number only to have the software reject it with a cryptic message. If you enter a value that produces a strange result, simply go back and try a smaller change.