Customizable GT2 Gear / Pulley / Idler 3D Printer Model

Author: @
License: CC BY-NC-SA
File formats: stl,scad
Download type: zip
Size:15.6MB

The file 'Customizable GT2 Gear / Pulley / Idler 3D Printer Model' is (stl,scad) file type, size is 15.6MB.

Description Files (17)

Summary

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)

*I'm not a mechanical engineer.

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]
GT2_Gear_14.stl 2.9MB
GT2_Gear_16.stl 3.4MB
GT2_Gear_18.stl 4.0MB
GT2_Gear_20.stl 4.2MB
GT2_Gear_24.stl 5.2MB
GT2_Gear_28.stl 7.4MB
GT2_Gear_32.stl 8.5MB
GT2_Gear_36.stl 9.4MB
GT2_Gear_40.stl 10.1MB
GT2_Gear_44.stl 10.4MB
GT2_Gear_48.stl 11.6MB
GT2_Gear_52.stl 12.9MB
GT2_Gear_56.stl 13.3MB
GT2_Gear_64.stl 14.7MB
GT2_Gear_72.stl 16.8MB
GT2_Gear_Pulley.scad 5.2KB
GT2_Idler_20.stl 4.0MB

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