Insert for DIY-Electronics Spools

The spools from DIYElectronics.co.za measure approx. 58mm ID. This insert has a 59mm OD and 9mm ID for the 8mm smooth rod. (8mm ID was too tight and required drilling. 9mm does not and is perfect.)

This insert is a tight fit but it needs to be.

Customized version of http://www.thingiverse.com/thing:431426
Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=431426