Adjustable Filament Spool Spacer

After looking at all of the existing spacers, I found that not all printers (or spools) are created the same. This was designed for to be adjustable for the KNP3D for a 1lb and 2lb spool. The outside diameter is 50mm, the hole that fits the spool holder is 35mm. Collapsed length is 38mm and fully extended length is 68mm. You'll need to run the threads in by screwing and unscrewing it a few times. Baby powder helps as a dry lubricant (that's the white stuff you see on the threads in the pictures).