cr-10 spool mount

thickened the tower portion going up to the spool at a taper. removed just a little bit of the part that clips onto the 2020 rail to make it easier to get on .

if i needed to print this again i would probably redo the clip and give it more of a guide because i had to grab a flathead to pry the tabs open. i feel like i made some improvements over the original design without making too much of a compromise. i think everything just needs to be thicker for it to not wobble but it works. i designed another holder that needs some work too but its not perfect either. there isnt too many spool holders for the cr10 v3.