CNC Rotary 4th Axis 20:1 Gearbox Modification (How to Remove the Backlash)



Here is the overview of how to modify the 20:1 CNC 4th Axis Rotary. You will need to download the DETAILED Instructions (which contain the BOM, the Tool list, and the Instructions!) as well as the drawings for the eccentric bushings. This is a fairly simple modification but may challenge your skills.

Remember, the video is the overview, the detailed instructions ( about 14 pages) will walk you through the process STEP by STEP. Enjoy.

Timeline:
Disassembly 5:20

Instructions:

https://drive.google.com/file/d/1YkmC2gXPznCYU589y9s01duKAXurIM_3/view?usp=sharing

Drawings:

https://drive.google.com/file/d/1KAC3tKYSORfBBePZa9jP3wxtMgt_-UMi/view?usp=sharing
https://drive.google.com/file/d/1W8tfDrh4K70DhX_yX5mwKX4w23N0zBFl/view?usp=sharing

How to make a 0.0005″ Tolerance bores on a Shapeoko (RFPPS)

https://drive.google.com/file/d/1cNaZdw3_0S-FSG8mj_wk8lgN5YXan4LU/view?usp=sharing

https://drive.google.com/file/d/1D-pg1DqBDklRwfCUz_aawFR1glkxJIJn/view?usp=sharing

https://drive.google.com/file/d/1qlIO_W3gLDkaRIlEjcW1TtkJRZZoBZOu/view?usp=sharing

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