Arcade Ball Grip

thingiverse

This is an arcade grip designed to accommodate a 12 by 8.3mm M6 threaded insert. The model I used can be found on Amazon at https://www.amazon.com/gp/product/B07X75R4B3/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1. It was specifically created to support the SJ@JX brand of arcade stick kits. To install it, I used a heat gun on the printed grip and pushed the insert in place. Be cautious when using a heat gun as it can make the print extremely hot. Alternatively, you could enlarge the size of the print or hole and glue the insert into position.