My Precision DIY Electromagnetic Chuck

[@habiks]

Needs a hole in middle.

[@Uncle-Duncan-Shack]

Very nice build, door magnets are easy to get, cheap and powerful. I also like the the suggestion of using a heat gun to warm up the parts to be welded, great suggestion there. This will making drilling a lot of holes with a center drill after marking them so much quicker and easy. And it works well in the traditional sense on a surface grinder too. Good stuff, I like!

[@kikakuvr4198]

Can you specify what you mean by liquid glass resin? Cool build!

[@machinistnick]

It is a 2-component, clear solvent-free epoxy resin.

[@knighthawk2062]

Very cool build! Noob question though, aren't you afraid of penetrating your cool new electromagnetic holder??

[@machinistnick]

I already made a 20mm hole in the middle in order to avoid injuries.

[@mrbrown6421]

Drilling dry? Use penetrating oil. We do. Keeps bit cooler and drills better. But you know that. I'll bet you wanted to keep the piece clean! Right, eh ?

[@pastelnyu]

This is really cool, I'm thinking of making one of these for my 3x72 grinder, do you have a more detailed list on the electronic parts?

[@machinistnick]

Thank you. The main "electronic" parts are 2 door electromagnets, with 280kg force and a 12V 2Amps power supply.

[@johnarizona3820]

Electromagnetic holding plate.

[@joemurray8902]

Very cool!

[@ahill7099]

what happens when your drill goes through

[@paulsawczyc5019]

You get a spark and the circuit breaker goes off.

[@ahill7099]

@paulsawczyc5019 i just meant wonder i you could have left a lil filler out for drill space

[@paulsawczyc5019]

@@ahill7099 Oh - well you could just put a flat piece of steel on top of the magnet - maybe like 1/4 inch thick as a protector - it would still be magnetic.

[@MrPtrvazq]

I love this build but I want to make a chuck for a surface grinder. Do you think the heat build up would be an issue for the epoxy?..I'm leaning towards yes

[@machinistnick]

@@MrPtrvazq I really don't know what to tell you about this. If your grinder has coolant, I guess it will be fine ..

[@MrPtrvazq]

@@machinistnick I think I'm going to do it a wee bit different.As knife maker I use heat to separate epoxied parts if I have to so that kind of answers my question. Thanks for the response

[@cho4d]

what happens in the event of a power failure? 😬

[@machinistnick]

The power supply capacitors will maintain the magnetic field for 1 to 1.5 seconds. The drill will stop instantly

[@Punkinchunks]

Thaaaaat's not a chuck. A machinist would know that.

[@machinistnick]

It is an electromagnetic chuck

[@ahill7099]

its a magnetic vise

[@machinistnick]

@@ahill7099 No. It is a chuck. vise. noun. ˈvīs. : any of various tools with two jaws for holding work that close usually by a screw or lever

[@fitzt70]

Nice build but confusing grammar. Drill chucks are devices used to hold a drill or other cutting tools on a spindle. You have made a nice clamp.

[@Punkinchunks]

@@machinistnick that is definitely not a chuck of any kind

[@markokekic6349]

Bad build. No hole in middle.

[@artemkras]

Great idea )