I'm curious, why the desire to change slides on a Glock? What is gained? Not asking from a judgmental point, it's just that in my line of work, you use a completely stock firearm without even bbl swaps such as 40/357. Whatever is listed on the slide of the stock firearm is the caliber used.
That said, in a non-work gun, have fun and do what you want. From that point, I'm just ignorant on slide swaps.
I just recently got a 3d printed Glock 21 frame and a slide in STL format, does anyone know how to edit the files to add Lil logos or change the texture? Also I have a couple of 3d printed 9mm drums and ar15 one, would it be possible to edit the STL file to accommodate .45 ACP ammo so that the drum would fit the Glock 21 lower frame, cuz I've yet to find any .45 clips that have more than 10rds, super wack....any help would be appreciated