Summary

the season I made this is because I play guitar in my chair and the arms were getting in the way of my playing so I took them off and there were mounting points left so I designed a holder for my fire stick controller.

the 3d print took around 21 hours to print but I used a more fine print to make it and with supports and rim around it.

the measurements. the inner diameter (W 38.92) (L 18.05) (D 142.30)
outer diameter (W 48.83) (L 48.20 including mounting point) (L 28.30 not including mounting point) (D147.10)