Spool Holder (many spool sizes, easy spool exchange) by ambrop7

Last crawled date: 3 years ago

This spool holder can accommodate many different sizes of spools. A pair of cones holds the spool in place and centered. Bearings are used to minimize friction during rotation. Spool exchange is simple: lift the spool/rod from the frame, untighten the wing nut at the two-part cone, take apart the cone, take the rod out of the spool, then do the reverse for the new spool. But don't forget about the wide washer which likes to fall into the spool.
With the default parameters:
Spool hole diameters between 29mm and 65mm are supported (limited by the wing nut size and the cone diameter, respectively).
Spool widths up to about 100mm are supported. The spool can be wider if its hole is larger, due to the protrusion of the cones.
This part is designed with my scadgen Python tool, which can output OpenSCAD or OpenJSCAD code. To generate OpenSCAD and open the result:
python2.7 /main.py filament_holder.py -o out.scad -s
Updates:
Made certain holes octagonal for easier printing.