You'll need to have a Fusion 360 installed and have downloaded this repo from github. If you download as a zip folder you'll need to have extracted the folder before you 'install' This worked on my machine when I last used it. Fusion360 is a moving target, so if it no lonter works feel free to clone or fork and fix it.
To manually install (the only option provided for now):
- Download this repo from github. If you download as a zip folder you'll need to have extracted the folder to continue
- Open the Add-In's dialog from the Utilities workspace (keyboard shortcut is shift-s)
- Click the Add-ins tab
- CLick the small green '+' symbol at the top left of the dialog
- This opens the add-in's folder (probably empty if this is your first add-in)
- Copy the entire folder of the add-in to the add-ins folder
- In Fusion360, click on the "Utilities" workspace tap
- Click on the Add-ins Icon in the toolbar
- Click on the Add-ins tab of the Scripts and Add-Ins dialog box
- Click the green '+' symbol next to "My Add-ins" (Opens file explorer to the Add-ins folder)
- Copy the entire folder of the Add-in to the folder that just opened
- Click on "Select Folder"
- Click on the Add-ins toolbar button
- Click on the 'Add-Ins" tab of the "Scripts and Add-Ins" dialog
- Select cycloidal_gear_generator from the list
- There should now be a new icon
next to the Add-Ins toolbar button
Video: Installing on Windows https://youtu.be/6j6FxZL6bGs
A parametric cycloidal gear system generator add-in for Fusion360.
The gear reduction of a single stage cycloidal drive is primarily determined by the number of pins (aka: stationary ring gear) and the cycloidal disc
Gear Reduction Ratio = 1 / (num_pins - 1) Or simply one less than the number of pins
Example:
If a single stage cycloidal gear system has 11 pins:
10:1 (1 / (11 - 1) = 1 / 10 = 0.1)
With the above example, the output shaft will rotate 10 times for every single rotation of the input shaft.
Higher Pin Count: Increasing the number of pins on the ring gear results in a higher reduction ratio (slower output speed).
Compact Design: Cycloidal gears are known for achieving high reduction ratios in a relatively compact size with very little backlash.
Stage 1: Ring gear with 11 pins (R1 = 1 / (11 - 1) = 0.1) Stage 2: Ring gear with 15 pins (R2 = 1 / (15 - 1) = 0.0714) Final Gear Reduction Ratio = R1 * R2 = 0.1 * 0.0714 = 0.00714
140:1, meaning the output shaft will rotate 140 times slower than the input shaft.
Wikipedia article: https://en.wikipedia.org/wiki/Cycloidal_drive
Credit to mawildoer for original script (https://github.com/mawildoer/cycloidal_generator) and to https://github.com/bradlab-net for the grunt work of making the interactive add-in
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