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Thanks to Denrep and my High school science teacher the day wasn't so long

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发表于 2021-8-31 22:49:03 | 显示全部楼层 |阅读模式
My helper apparently installed some sleeve anchors without leaving the nut and washer on.  Came to me saying a screw fell inside the brick.  Took about an hour to come up with a solution.  This was a second attempt to make a electromagnet.  The I removed the sleeve prior to pulling the screws out.My helper is great. Attached Images
Reply:what did you set the machine to make it work?Vantage 500's LN-25's, VI-400's, cobramatics, Miller migs, synch 350 LX, Powcon inverters, XMT's, 250 Ton Acurrpress 12' brake, 1/4" 10' Atlantic shear,Koikie plasma table W/ esab plasmas. marvel & hyd-mech saws, pirrana & metal muncher punches.
Reply:It was at 100 amps.  That is what I was welding at. However the first attempt was not strong enough to lift the bolts.  So, I wrapped more wire and the mag was stronger.
Reply:I like it! Dave J.Dave J.Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~ Syncro 350Invertec v250-sThermal Arc 161 and 300MM210DialarcTried being normal once, didn't take....I think it was a Tuesday.
Reply:Used to make electromagnets like that when I was a kid.  Used to pick up used blasting wire left laying around and wind them up and see how strong we could make them."The reason we are here is that we are not all there"SA 200Idealarc TM 300 300MM 200MM 25130a SpoolgunPrecision Tig 375Invertec V350 ProSC-32 CS 12 Wire FeederOxweld/Purox O/AArcAirHypertherm Powermax 85LN25
Reply:In the pictures it looks like you stripped the insulation off the wires and to make an electromagnet you need to leave the insulation on the wires.Mr. HE
Reply:Thanks HddnisI couldn't remember, I initially thought about just wrapping leads around a bar.  My first attempt, I did leave the insulation on, however it was difficult to keep wrapped and I supposed I didn't have enough turns.
Reply:It was a clever use of what you had on hand and it worked, you can't ask for more than that.Mr. HE
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