Customizable GT2 Gear / Pulley / Idler
Description
This is a customisable GT2 belt / pulley / idler with the following additional features: - models the GT2 belt using arcs, based on the publicly available belt profile - draws the teeth using involute curves, which models the belt release which is dependent on the gear's radius (see pictures)* - M3 grub screws / offset screws / no screws (for pulleys) <small>*I'm not a mechanical engineer.</small> Customiser settings: 1. teeth - number of GT2 teeth 2. detail - % 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. Attached stls are rendered at 100%) 3. belt_wd - belt width 4. shaft_d - shaft diameter. Set this to your bearing OD if you're making idlers 5. lip - a lip to encourage the belt to stay centered 6. nut - nut type (square, hexagonal, none for idlers) 7. mount_offset - offset the mounting screws. Set this to false, if you intend to use grub screws that are in-line with the teeth. The customiser will override this if there is insufficient space for placement of nuts Suggested print settings: - 0.25mm nozzle - 0.1mm layer height - no supports - 5 perimeters - octogram spiral top/bottom infill - 30% gyroid infill - PETG [use a strong plastic that doesn't warp]
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