This is a gym cable pulley system model that I was testing out, to be used with the following pulley: https://www.amazon.com/dp/B0964NHVF8?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2&th=1. The stl file includes a simplified model of the pulley.

The model is sized to fit  a 2"x3" squat rack with 5/8" pin holes. Both sets of holes in this model fit a 5/8" pin; I used a 4"x5/8" diameter bolt that I had lying around, in addition to the pin that came with the rack.

For the cable, I used 8mm climbing rope.

This model was designed and printed in PLA and was intended only to test the fit, as I plan to remake this in ¾" plywood for better strength. I have not load tested this past 10lbs. Please use with caution or print in a stronger material. I would recommend load testing it before lifting with it regularly.

Good luck and happy lifting!