This version of cycloidal gear box is customized for FRC Legal Part PM15R-25F-1001.
You just add 1X 608z 8mm id skate bearing, 1X F608zz 8mm id bearing, and 1XM8 Hex cap bolt to complete the project.
Suggest use metal ecc shaft to connect the motor and ecc_gear.
The design is inspired from http://www.thingiverse.com/thing:1278875 and other university project.
Overview and Background
In some case, FRC team are looking for high reduction ratio, and compact designed gearboxes. The available options from Andy Mark or Vex are good but not best suit for the FRC project.
Also, existing models for GrabCAD or other source are not fit for FRC legal motors.
Therefore, we modified and designed our own gear box.
By share it to the world, hope we can help out someone with similar requirements.
Lesson Plan and Activity
Benefits of cycloidal gearboxes
• Zero or very-low backlash stays relatively constant during life of the application
• Rolling instead of sliding contact
• Low wear
• Shock-load capacity
• Torsional stiffness
• Flat, pancake design
• Ratios exceeding 144:1 in a compact size
• Quiet operation