To hold a bobbin of weft during weaving.

Consists of two parts, the BODY and the ROD.
The ROD slides completely in and out of the BODY, to hold and release the bobbin.
There is a slat of wood adhered to the bottom of the BODY in the images, though this should not be nessecary for function.

The rod has diameter 4mm
The bay has length 148mm and width 34mm
The yarn slit has width of 5mm

The ROD is a cylinder with ends cut to match the BODY where they exit, and a segment cut from the bottom to print on.

Artillery

Artillery Sidewinder X1

No

No

I did 0.3; you may prefer finer.

3 walls, low lightning infill

Be aware that smooth surfaces are preferable to minimise abrasion against the yarn.

The yarn slit is a long bridge. For convienience, I do not recommend using support, even though this bridge will sag slightly. If you decide do use support for the bridge, make sure that there is no support in the rod-hole (that would be extremely difficult to clear).

If you would like modification, clarification etc., or just to share how it went, please comment and let me know!