In-line Fuse Holder (Housing and Cap) - both spring and no-spring versions
https://www.printables.com/model/351321-in-line-fuse-holder-housing-and-cap-both-spring-an
Description
This approach can be seen in store bought fuse kits, but the fuses in my kit were a type that’s smaller than the 13A fast blow fuse I needed to use, so the batch of inline fuse holders in the kit would not work. Two of the attached photos show the store bought instance of this approach (those came in my fuse kit).
I found a design on Thingiverse.com that was a push-and-twist-to-lock housing and cap design, and it looked promising, but I found it not usable due to its tolerances being a little too tight, especially since many of us, including me, are printing with larger nozzles, thicker layer heights, and thicker walls (especially on prints like this that need function, not aesthetic beauty). Also, that design was intended for no spring being used, and offered no version for use of a spring.
For a mission critical application, I prefer to use a spring.
The design is clever: push each (stripped) wire end into its respective part (housing and cap), and twist the wire ends into “knots” so the wires cannot be pulled back out. Insert fuse, and push the cap onto the housing and twist about a quarter turn to lock it in.
I remixed to get more forgiving tolerances, granting more ample room, and better success for use.
I also remixed to offer a taller cap that allows use of a spring in the housing side. I pulled a spring out of one of the store bought ones, but I think you could also get a spring out of an unused ball point pen (the retractible kind).
Also, the wire holes in the housing and cap are small (set to 3.25 mm diameter) for thin gauge wire, but it’s easy to make the holes wider by inserting a soldering iron, if you have thicker gauge wire such as I used.
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Various LowRider 3 CNC remixes: LowRider 3 CNC Collection
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