Improved Idler for 625ZZ Bearings

When building my 3D printer, I had received some really weak idlers that had a tendency for either cracking or sliding off the end of my bearings. To solve this problem, I designed a new one on Solid Works that is thicker and fits between two 625ZZ bearings instead of sliding over both of them.
When printing these, be sure that the settings are super precise. I used .3mm layering for mine.
If necessary, alter the scale by a TINY percentage to get it to fit the bearings snugly. Also, be sure t