Customizable GT2 Gear / Pulley / Idler

thingiverse

This is a fully customisable GT2 belt / pulley / idler with the following extra features: - models the GT2 belt using arcs, based on the publicly available belt profile - draws the teeth using involute curves, which accurately represents the belt release dependent on the gear's radius (see images) - M3 grub screws / offset screws / no screws (for pulleys) Customiser settings: 1. Teeth - choose the number of GT2 teeth 2. Detail - adjust the % detail to render the teeth (an arbitrary setting that affects the number of segments in a circle + number of steps to model the involute curves) 3. Belt Width - select belt width 4. Shaft Diameter - set this to your bearing OD if you're making idlers 5. Lip - add a lip to encourage the belt to stay centered 6. Nut - choose nut type (square, hexagonal, none for idlers) 7. Mount Offset - offset the mounting screws or keep them in-line with the teeth Suggested print settings: - 0.25mm nozzle - 0.1mm layer height - no supports - 5 perimeters - octagram spiral top/bottom infill - 30% gyroid infill - use a strong plastic that doesn't warp, like PETG