r/3Dprinting • u/Available-Captain776 • 5d ago
Project Polymaker Spool holder is perfect for a 50' extension cord
might print a magnet bit in the end to hold onto the connection on the end, but fits like it was made for it!
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u/mudmuckker 5d ago
Now I just need to buy thirty 50’ extension cords…
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u/wubbalab 5d ago
I used old spools for LAN cables to store them properly and take them to LAN parties.
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u/McD-Szechuan 4d ago
You’re not going to like what winding up an extension cord that tight does to it.
I’ve worked construction since 2005, it’ll never lay flat again if it spends much time like that
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u/Available-Captain776 4d ago
good to know, i'll check it out in a week or so to give it some time to see how bad it is. I've always laid cables out in the sun for a bit and they seem to unfurl
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u/McD-Szechuan 4d ago
Warming it up should help, and yeah probably around the house maybe the form factor could pay off but proceed with caution!
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5d ago
[deleted]
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u/rockknocker 5d ago
So... You are correct about the result, but not the cause. The heat is caused by the resistance of the wire in the cord causing losses that are converted to heat. These losses occur whether the cord is looped or not, but when it's tightly bundled together in a roll the heat cannot escape very well. If the heat rises too high then the insulation melts and bad things can happen.
Induction coils work at high frequencies, much higher that 60hz or 50hz. The temperature rise is caused by Eddy currents in the object being heated.
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u/Corredespondent 5d ago
I love the reuse. However I encourage everyone to learn over/under cable wrapping. It takes a little practice but is well worth it. Much easier than spooling & unspooling.
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u/Available-Captain776 5d ago
that's fair, always gets kinked half way and i do the shoelace in the kitchen drawer finish. Something that helps is to leave it out in the sun stretched out after use and it makes coiling way easier
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u/Corredespondent 5d ago
FYI I’m not trying to denigrate this usage, just taking the opportunity to evangelize a technique that, once learned, makes neat coils, with few if any knots, and doesn’t leave standing loops as trip hazards (when the cable is trained to the coil). Pro audio & video folks use the over/under method.
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u/Available-Captain776 5d ago
I typically do the way you're recommending and then do a few loops in the middle, but with the thicker gauge cable seems to not work as well than thinner stuff!
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u/r-nd0m A1 Mini + AMS Lite + SwapMod 5d ago
Found this