Main Part quickchange system for OG Star Tracker

Hi, I am currently in process of building my own OG Star Tracker. I didn't know what I wanted to use for polar alignment so i modified the main part so that i could quickly change laser/polar scope/guide scope without reprinting the main part. The holder is designed with M3 thread. So you need M3 screw to fasten it.I include f3d file so you can change holder to suit you needs.Printing instructions:#The tolerance is 0.1mm#Use 100% infill to stiffen it upIf you like it please leave a like and comment!