Showing off my homemade induction annealer

[John Y Cannuck]

Great use of an old desktop.
Me, I have one of these as I am a mechanic. It's used for induction heating of seized nuts and bolts. It should also work in a pinch to anneal cases. I will have to try it when I get done my current project.

They are not cheap, but as I already have it, why not?

 

[Jimothy]

What is a IR Temp meter you got there. Probably I can get one for a price of Tempilaq.
Also the A meter source?

The thermometer is this one from Amazon https://a.co/d/5zuIZFs

It is not accurate but having adjustable emissivity helps a little. Also quarter second sampling is insufficient when paired with a tenth second timer. It’s also the most expensive bit. I recommend omitting it entirely.
There is no ammeter if that’s what you mean by A meter. I was thinking of adding one with a shunt somewhere but not yet.
The next change planned will be to replace the metal “bridge” on the tray with a ceramic or glass one , maybe piece of tile, as the bridge takes a lot of the induction energy when it’s adjusted close to the coil for short action length cases. That means it gets hot. It also means that it actually helps the energy to be concentrated at the case shoulder by sapping it away at the base. It’s all an experiment

 

[bigHUN]

I have about a similar handheld thermometer for my 3d printing projects. I don't think that would working well on shiny objects also the timing is short the measurement to be accurate. I just hesitate buying a tempilaq for a listed price.
About that metal bracket holding a shell I assume the same, too close to the coil.
I was also looking into a piece of ceramic tube with a comfortably matching ID, but no luck finding anything locally.