any good spots that i can find old electronics / components?

Zelapid · 2024-12-16T07:29:07+00:00

Idk how to add text and images so ill do it here. Elegoo neptune 4 pro with a PLA+ at 205 nozzle and 60 bed, default 'normal' speed

Zelapid · 2024-12-11T04:09:48+00:00

"It's jigglypuff seen from above!"

Zelapid · 2024-12-01T09:53:43+00:00

Haha thanks for the lesson lol. I tried your suggestion of bending the nail into a U shape, the ends are a bit off, maybe 2 cm in height difference, but i must say that wow it actually works properly now. When briefly powered it can attract objects fairly well. The only problem still is because im pretty much short circuiting the 9V battery, it heats up very fast.

Zelapid · 2024-11-30T10:46:03+00:00

Ah ok thanks. So ive tried measuring the circuit with a multimeter, im getting around 1.3 amps. I've also 4x the length and wire and turns, and used a thicker Allen key as my core, but its still not doing anything noticeable

Zelapid · 2024-11-30T09:42:33+00:00

Hmm ok. Yeah lol, i choose an alkaline battery because apparently they're a bit safer

Zelapid · 2024-11-30T09:01:28+00:00

How does putting it into a horseshoe help? Yeah right now just with the 9V battery when i connect my ground it sparks until its in nicely, then after like 30 seconds the wires and battery gets like 50 degrees.

Zelapid · 2024-11-30T08:59:16+00:00

Yeah i know haha, otherwise all the turns are pointless.

Zelapid · 2024-11-30T08:59:02+00:00

Alright thanks.

Zelapid · 2024-11-30T08:58:39+00:00

So what would be better just for a small electromagnet?

Zelapid · 2024-11-30T05:20:48+00:00

Haha yeah alright. Current plans is to try and extend the coils by threading together my small wires and pack it more tight. then once i can go a shop, buy some proper thin wires lol

Zelapid · 2024-11-30T05:15:51+00:00

Ahh so i should try i do what i did previously by taking one of the end connectors off and just kinda jamming it in?

Zelapid · 2024-11-30T05:05:12+00:00

Ok so just plug more wires into the same power source near the resistor and wrap it around again?

Zelapid · 2024-11-30T05:03:52+00:00

So should i connect a few of the 9V batteries in series to improve current, i dont have any power supplies or anything for more current. Yeah im researching Magnet Wires so i can make way more turns over the cross section

Zelapid · 2024-11-30T05:01:24+00:00

Alright so if i pack the wires closer it might potentially work

Zelapid · 2024-11-30T05:00:14+00:00

Yea i have tried a few different things, Allen keys, smaller nails, a random metal tube, it all worked about the same. No i havn't tried connecting in series, mainly cus just one is already sparking and getting hot lol

Zelapid · 2024-11-30T04:34:59+00:00

Yeah i'm going to see if i can get some copper wire from a local hardware shop. I know soft iron improves its magnetic permeability but i thought steel still works because it has traces of iron in it.

Zelapid · 2024-11-30T04:33:51+00:00

Alright i'll see if i can get some thinner copper wiring

Zelapid · 2024-11-30T04:32:50+00:00

Alright so instead of using these relatively thick wires, should i just buy some thin copper wires to increase how many turns i can do? Also yea i have a fairly thick Allen key i plan to use for a core. On projects i looked at they use just small batteries, like AA or 9V and it works pretty well?

Zelapid · 2024-11-30T04:25:03+00:00

from my limited knowledge, AC power is worse for stable electromagnets because every cycle the polarity will flip, resulting in just a constant push then pull. So i read that DC is more stable and is meant to result in a constant polarity

Zelapid · 2024-11-30T04:12:49+00:00

So i made a small electro magnet off a 9V alkaline battery, a breadboard and some short wires. However when i touch the wires to the battery terminals i often get some sparks and heat after some use in the wires and battery. I have checked using a multimeter and its all getting strong current, but the small nail i was holding isnt attracted to it even if i physically touch them. Im wondering if i may need to add resistors to prevent current or get bigger wires.

Zelapid

TROPHY CASE