1.25inch Snap in Rod holder.

thingiverse

To support a 1.25-inch dowel or tube, print two of these rod holders at both ends. These will be utilized in my custom enclosure for a spool rod featuring three filament spools. To assemble, print left and right rod holders and mount them opposite to each other; secure with four 6/32 screws and nuts, if installed externally on the box.