• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.

Tool Inexpensive demagnetizers?

Tool
D

Dan Dubeau

Ultra Member
Trying to find an inexpensive demagnetizer after striking out on a few old eclipse one recently. Accusize is out of stock on this one. The rainforest is sparse for other imports, and TBH they all look janky. Anyone have another source? Or used one of the cheap imports like this and confirm they work? Trying to keep it under $150, which I think is a reasonable amount to regain my sanity....

On another note, any idea how much wire and current is required to wrap an entire shop and demag it all at once? Not sure how it happened, but everything in there seems magnetized and I'm losing my mind. I hate magnets in a machine shop......Going to rob the seacan at work of all the welding leads and wire nut it straight to the pole....:D.
 
Damn it. Not sure how I missed this one, but I drove right past there yesterday and would have bought it.
https://www.facebook.com/marketplac...f=marketplace_profile&referral_code=undefined
1742740963442.png

Wife is down in the Hammer today at a yarn show in the old cotton factory. Wonder if I can convince her to make a detour on the way home....She's with my MIL, and Daughter, and also towing a trailer, so I don't like my chances.....lol.
 
Dan Dubeau said:
Damn it. Not sure how I missed this one, but I drove right past there yesterday and would have bought it.
https://www.facebook.com/marketplac...f=marketplace_profile&referral_code=undefined
View attachment 62028

Wife is down in the Hammer today at a yarn show in the old cotton factory. Wonder if I can convince her to make a detour on the way home....She's with my MIL, and Daughter, and also towing a trailer, so I don't like my chances.....lol.
Click to expand...
If you're ever at the Cotton Factory and he's around, give Shao Pin Chu a shout, he's a jeweller in there. I did a workshop with him before doing goldsmithing at George Brown College, in... maybe 2001-2? I've bought a bunch of tools from him, over the years, as well. Just tell him Stuart sent you. :)
 
I was just there yesterday helping her setup, but today was a gurlz trip..... Pretty neat building, I love walking around seeing all the old doors and stuff. Like a time machine. The yarn show is in what I presume to be the old toolroom on the 3rd floor because of all the embedded chips in the floor.

I didn't get much of a chance to wander last night, I was in a mood and just wanted to get her setup and get out of there.....People, traffic (got held up by not one, but two Car-B-Que's on the way down there) But we wandered around last year, and checked out the rest of the building where we could and not get busted for B&E. Didn't realize until after that the glass blowing show blown away was filmed there. I realize now that is was in the spot where I hoisted the kids up on my shoulders to peek into an overhead window to see what was in there and they just said "it's pretty dark, just a bunch of stuff" lol.

I just checked out his Insta, and like his style. Pretty talented. I can see how being setup in a building like that would be pretty conducive to creativity. If I'm ever down there during normal business hours I'll definitely poke my head in for a visit with a name drop.
 
Thanks Chazz, I did see that thread, and should make one of those rotary tools.

That style is what I linked to in the first post, and the cheapest I could find is $135 up here.

I did find a handheld style, but so far only in 220v. Not a deal breaker, but I DO kinda like this one more as I can hopefully take it to the welding table easier which seems to be biggest trouble maker in the shop for magnetizing everything......I'll mull it over a bit, and might take a punt on one to try out, while still holding out hop finding a good old local Eclipse model like I want.
 
Stupid thought - we used to use a simple coil-in-a-box to bulk erase magnetic recording tape. Do these still exist? (Lord, I'm old.)
 
I wonder if one of those old fashioned head demagnetizers for tape decks would work?

I have one of those that has not seen the light of day for 45 years, buried in a box somewhere I guess.
 
No, simple coils were banished a short time after the great plague.....:D

I never had one apart, but that's pretty much all they are right? 2 isolated half's with wire around them? Like this?

demag.png

Or am I completely wrong and it's just a big simple coil?

​

 
slow-poke said:
I wonder if one of those old fashioned head demagnetizers for tape decks would work?

I have one of those that has not seen the light of day for 45 years, buried in a box somewhere I guess.
Click to expand...
The tape erasers work too. I searched for one of those thinking that one could pick one up cheap being that they're obsolete, but they're as rare as film canisters now.....

Wife laughed at my request for a detour to pickup that eclipse on her way home lol.
 
Ya I like @Ironman idea to use a shaded pole motor in another thread (every bathroom fan motor ever) this would give like a 1 inch passthrough, perfect for screwdrivers and such. His comment above though, can you use the stator of any motor for bigger objects? Something i can fit my head in? For this then you could take a 75hp 600v 3phase motor, gang the phases, use single phase 110v and that would give you a big bijesus demagnetizer?
 
quitereal said:
Can an induction cooktop plate be waved over things to demagnetise?
Click to expand...
That’s an interesting idea (thinking more of using it like more conventional plate demagnetizers. However, conventional plates have two poles next to each other, so the reversing field flips between the poles; I think induction cooktops have circular pattern fields (like the coils used for focused heat treatment).
 
quitereal said:
Ya I like @Ironman idea to use a shaded pole motor in another thread (every bathroom fan motor ever) this would give like a 1 inch passthrough, perfect for screwdrivers and such. His comment above though, can you use the stator of any motor for bigger objects? Something i can fit my head in? For this then you could take a 75hp 600v 3phase motor, gang the phases, use single phase 110v and that would give you a big bijesus demagnetizer?
Click to expand...

You are right, you could do that with a 75hp motor. The motor will draw it's idle current, which may be 20-30 amps for a 75 horse though....I'm guessing on this.
The fact is, you can use any single phase motor. Let's say you have a burned out pump, but the motor works, it wont pump. So take it apart, disconnect the start winding, throw the armature and end caps in the scrap and plug it in. It will sit there and quietly hum. Doesn't get hot, etc. Now you have a 3.5" hole to use. The guy in the video was right. Just like demagnetizing a tape recorder head you back away from the demag and then shut it off
 
I don't know, but might be worth a shot building the dirt simple spinny type previously shown mounted on a cordless drill and trying to demag your table with it just by passing it over the surface in a pattern. I'd bet a few bucks it'll work well enough to kill the annoying magnetism and you'd be done, no moving heavy objects around.

If it doesn't work on the table, then no real loss, you still have it for smaller items. Another benefit is the tool is small, so can hide in your shop easily.
 
Ironman said:
You are right, you could do that with a 75hp motor. The motor will draw it's idle current, which may be 20-30 amps for a 75 horse though....I'm guessing on this.
The fact is, you can use any single phase motor. Let's say you have a burned out pump, but the motor works, it wont pump. So take it apart, disconnect the start winding, throw the armature and end caps in the scrap and plug it in. It will sit there and quietly hum. Doesn't get hot, etc. Now you have a 3.5" hole to use. The guy in the video was right. Just like demagnetizing a tape recorder head you back away from the demag and then shut it off
Click to expand...
When you last mentioned this simple demagnetizer I went over to the junk pile and grabbed a worn out 1/4hp motor, pulled it apart, wired it up to a momentary push switch and started demagnetizing all my screwdrivers and drills.
It works great, thanks.
 

Attachments

  • IMG_1790.JPG
    IMG_1790.JPG
    1.1 MB · Views: 4
  • IMG_1791.JPG
    IMG_1791.JPG
    971.6 KB · Views: 4
skippyelwell said:
When you last mentioned this simple demagnetizer I went over to the junk pile and grabbed a worn out 1/4hp motor, pulled it apart, wired it up to a momentary push switch and started demagnetizing all my screwdrivers and drills.
It works great, thanks.
Click to expand...
Do you just stick the screwdriver in and hit the switch?
 
You must log in or register to reply here.
Back
Top