Vernier Dynamics Track End Stop Replacement - no magnets

I tried the original version when I needed more end stops, but the hole for the bolt to attach it to the track was too close to the vertical part, so the standard track bolts weren't able to rotate enough to easily attach it to the track.

My remix was literal, since I only use Tinkercad. I opened the original there, filled in where the hole originally was and made one where it should have been (as compared to the original Vernier item.) It basically just needed to be mirrored, it was the correct distance from the wrong side. Someone else could probably do a better job, but I thought that if I went to the effort of fixing it for myself, I might as well save other people the print time and filament.

It ended up working out so well that I made extra so I could have a full set of these non magnetic end stops for the lab we were doing. It's easier to just tell students to use these ones than to have them remove the magnets from either the original end stops or the carts.