Skateboard Trainer

My 15 year old daughter wanted me to buy her some skateboard trainers, so me being the awesome cheap father that I am, I decided to instead try to make some! The photo is a test with a 53mm test wheel (also printed, model found here: https://www.thingiverse.com/thing:1357109).

No supports needed, but it may be a little stringy on the overhangs. Print vertically as shown in the STL preview.

Note that as of this upload, it has not been fully tested on a skateboard, so comments are requested for any necessary tweaks and general critiques so it can be improved.