Thingiverse

Another Parametric Spool by IronOxide
by Thingiverse
Last crawled date: 4 years, 2 months ago
Needed this for a particular sized spool but figured I would make it parametric. Was quite an easy project actually. Essentially the same as the spool by "caru" (didn't see that). I do plan to make some additions such as a semi-transparent dome top to put LEDs and a cover for the outside of the solenoid. I FINALLY have access (sort of) to a 3D printer but alas it's not functioning right now...figures. It's a replicator 2 and I guess it's under warranty which is why they haven't just turned it over to me to fix! Still trying to convince my own boss to get us one - she needs convincing for some reason... I guess "limitless potential" just doesn't cut it.
It would be nice if the two pieces screwed together (or clipped together) but I'm not sure how to do a screw with OpenSCAD. The extrude and twist is just too unpredictable. I'll be looking into it when I have time, since the printer isn't working anyway I'm not rushing it. Any suggestions would be appreciated. For example how do you replicate a 1/4-20 with accuracy?
The actual use for this is to demonstrate how waves (water) can make energy. There is a bobber - like a toilet bobber - that bounces up and down giving about an inch to an inch and a half range of motion and I'm just trying to get enough voltage to power an LED but haven't been successful thus far. Couldn't find a spool with the right diameter so why not just print one! With a zener diode and capacitor we got it to work but the speed needed just won't cut it with the previous coils I made. So this will be take 2 (or 3). If it doesn't work at least I made the effort to make it adjustable. If I can't get the juice I need I'll have to go rotary. Again, any suggestions are welcomed and appreciated.
It would be nice if the two pieces screwed together (or clipped together) but I'm not sure how to do a screw with OpenSCAD. The extrude and twist is just too unpredictable. I'll be looking into it when I have time, since the printer isn't working anyway I'm not rushing it. Any suggestions would be appreciated. For example how do you replicate a 1/4-20 with accuracy?
The actual use for this is to demonstrate how waves (water) can make energy. There is a bobber - like a toilet bobber - that bounces up and down giving about an inch to an inch and a half range of motion and I'm just trying to get enough voltage to power an LED but haven't been successful thus far. Couldn't find a spool with the right diameter so why not just print one! With a zener diode and capacitor we got it to work but the speed needed just won't cut it with the previous coils I made. So this will be take 2 (or 3). If it doesn't work at least I made the effort to make it adjustable. If I can't get the juice I need I'll have to go rotary. Again, any suggestions are welcomed and appreciated.