DIY induction annealer

I was watching, thinking, “Man, all that brass. Ruined.”

Glad he said so at the end. Stop, before, red.

But that looks neat! Just in time for Christmas!
Looks like I’ll have a new project to make.

Now, where is @jmorris to automate this thang!

No thanks, my annealing machines have two attributes I really like. Simple to set up and use.

I have spent a lot of time making all kinds of work coils, for growing silicon crystals. It’s an eye opener on how focused or dispersed one can make the zone and the power they require.

Would have been nice if a bent piece of copper wire would have done the trick. We were in the power range that required them to be liquid cooled to keep from burning up, not sure how many I built before the design effort stopped, or how many months I spent building them. Still have photos of some of them.

Is using induction annealing better than propane? I'm thinking about building one

Induction heating is a neat way to do it. I did have a fling at it, but didn't have enough power to do the job. In some cases, the required power supply is much more expensive than the induction heater. And I have a few fairly substantial power supplies on hand.

It was hard shopping for this things when I’ve got an Annealeeze already.
I accidentally bought an adapter to use a twenty pound cylinder for the torch instead!

I’ll have to try again.

rdnktrkr said:

Is using induction annealing better than propane? I'm thinking about building one

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The best thing about propane, is with an automatically advanced machine one can set the ideal time very easy.

Start the machine with a fast cycle time and gradually slow to the point you begin to see the flame change color from blue to orange, not the case, it should never glow any shade but the flame. Then speed it back up so it remains blue, that’s it.



I don’t have a video of them being over done but FF to 10:03 in this video and you can see the flame change.

I looked at induction and salt bath annealing when I was shopping around for a machines but I chose propane. At the end of the day, it was lack of auto-feed options that put them in the NO column.

Heating up the brass is only part of the solution. I would really like to see an induction model with every-man case feeding availability. I've seen 3D printed rube-goldberg workings for the Mark II machines that people have made but it's not ready for prime time.

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I think my home made annealeez knock off is better in just about every way and it cost less to make.

I've heard of people using candles. you hold it over the flame until it gets too hot to hold it any longer and they say thats all it needs.

I have never done it before but if it does work it seems to be an easy and cheap way.

Blackbeard 44 said:

I've heard of people using candles. you hold it over the flame until it gets too hot to hold it any longer and they say thats all it needs.

I have never done it before but if it does work it seems to be an easy and cheap way.

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It tends toward burned fingers.

forty_caliber said:

I would really like to see an induction model with every-man case feeding availability.

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The Amp mate is the device that takes cases from a Dillon collator and puts them into, then pulls them out of their induction annealer.

One thing to note for us old guys. Not recommended for use near a pacemaker. You could probably use it if held away from the body on the side opposite your device.