I love this Speedy Stitcher for using heavy waxed nylon sewing awl thread to hold pieces of polypropylene seatbelt webbing together. It can be a real bear to get the needle through 3 layers at one time. The standard cap just does not fit my hand well, and I could really feel the wood edges of the awl digging in to my hand. That is why I designed these parts!
There is a bit of a lip and a bit of a gap on the fitment of the cap. That is intentional so that you can get the cap off to change out the spools.
Parts shown in images are Hatchbox black PETG at 0.2-mm layer height and 20% fill. material, layer height and fill percentage are flexible.
Support is required. No brim.
Print two SpeedStitcherSpoolHalf and glue together on a piece of 2.3-mm (0.090-in) music wire that is cut to 43-mm (1.69-in) long. I round over the cut ends of the wire with a file with the wire chucked in a drill.
I use medium CA to glue the parts together on the wire.
The length of the wire is not critical (as long as the wire does not come out of the cap. The proportion of what is in the SpeedyStitcher end is critical. If the spool is too high up in the handle, it will bind against the cap. The spools that I built have 3.5-mm sticking out of the bottom end.
Note that these spools will work with the standard cap, but the wire axles will stick out and stab you in the hand! That should be obvious when you install these spools with the stock end cap. It is not recommended that you use these spools with the stock end cap.
For the SpeedyStitcherSewingAwlCap, break off the support and give it a light sanding as necessary to make it comfortable in your hand. Drill the axle hole out to clear 2.3-mm (0.090-in) if required.
The author marked this model as their own original creation.