IC3D adapter for 1.25 inch dia. dowl

thingiverse

To secure a 1 1/4 inch dowel, use the IC3D adapter. This allows you to install a screw stop to prevent rolls from sliding too far left or right. Although IC3D's spindle holes are large, having all rolls together is beneficial. If you don't want dowel holders, drill holes in the adapter and use it for end caps by modifying one side with a slot for the dowel. This design is based on http://www.thingiverse.com/thing:62826. Note that there isn't a tight fit, enabling either the adapter or spindle to rotate with little resistance when pulling filament. Updated images show the working version, which runs smoothly without issues. The spindle size aligns with the standard electrical wire spindle dimensions. Print at .27 layer height with 5% infill and 40/55 settings.