scadbits

Highly optimized SCAD libraries.

Libraries:

use <scadbits/gears.scad>

A library for creating involute gears.

Modules:

• sbGear(circularPitch=3, numberOfTeeth=12, holeRadius=undef, deleteTeeth=0, pressureAngle=28, clearance=0, backlash=0)
  • A really fast involute gear generator with optional axle hole.
• sbRack(linearPitch=3, numberOfTeeth=12, width=2, pressureAngle=28, backlash=0)
  • A rack for use in a rack-and-pinion assembly.
• sbGearDesigner(pitch=3, holeRadius=undef, redToothCount=8, greenToothCount=16, rackToothCount=12, rackWidth=2)
  • Animated gear designer module. Generates a gear, rack, and pinion.

Functions:

• sbGearRootRadius(circularPitch, numberOfTeeth)
  • Calculate the root radius (lowest point of teeth) of a gear
• sbGearOutsideRadius(circularPitch, numberOfTeeth, clearance=0)
  • Calculate the outside radius (highest point of teeth) of a gear.