Anycubic i3 Mega spool holder

I've seen some good spool holders based on https://www.thingiverse.com/thing:2647030. What I missed was some kind of removable cap at the end of the holder's arm to easily change the spool but avoid it to get out accidentally.

This is my version of the mentioned spool holder.

It's publicly shared at OnShape CAD, you can duplicate and modify it as needed [Link](https://cad.onshape.com/documents/617dff5359d99fe5ec4854bf/w/9fb561aa250ddb8f07d0510b/e/06cb1ecd88f80f43e7814524).