Roller 73.5mm for 608zz bearings, narrow stand

The size of tube inner walls in the sourced model was not optimal and 2 inner walls can't be printed without constant interruptions which leads to very long printing time. I optimized it by changing the inner wall width.

Also I manually added support for overhangs in the bottom part in order to fit bearing properly. The support very easy to remove, no issue with residuals.

With my changes printing time was improved from 91minutes to 46minutes per roller.

You may find 608zz bearings on the Amazon or choose bearings by their quality (precision) on the AliExpress

I have made two 2 changes from the model: https://www.printables.com/model/629110-filament-trockenbox-roller-for-608zz-bearing:

• the inner wall width is 0.44mm for default 0.2mm height print profile (i am using Orca slicer and Bambulab studio). 
• I did manual paint for support of the bottom part.