DIY Auto Case Induction Annealer

[Vasko J]

Hi, everyone. I am sharing test of capacity of my new build of Auto Case Induction Annealer... thanks to most of you guys

-20pcs Remington 308Win brass for 2 min. (1.9 sec programmed anneal time)-

 

[powderbrake]

Why the long coil? only need about 4 or 5 coils at the top near the neck shoulder junction. No need to heat the case at the lower area.
Perhaps this is to allow any case length to be used without adjustment?

Anyway, nice job on the feeder and annealer.

 

[RegionRat]

Just curious... towards the end of the video you move the metal tray and catch samples in your hand?

How is it that you didn't get burned? And if that is true, what is the purpose of the fan?

It would seem that hitting the necks with the power to anneal them should tend to leave the body too hot to touch?

Nice unit and I really like the auto feed.

 

[Vasko J]

Why the long coil? only need about 4 or 5 coils at the top near the neck shoulder junction. No need to heat the case at the lower area.
Perhaps this is to allow any case length to be used without adjustment?

Anyway, nice job on the feeder and annealer.

The coil with length of 5 coils is possible in double layer (5+5) because of proper inductance... and that was the hardest job to find proper coil for proper frequency...
Yes, this is allow many case length to be used without adjustment.
Thanks!

 

[mikecr]

I don't know if this gets the 'Most Expensive Annealing' trophy, or not.
But whatever you learn is likely worth it.

 

[Vasko J]

Just curious... towards the end of the video you move the metal tray and catch samples in your hand?

How is it that you didn't get burned? And if that is true, what is the purpose of the fan?

It would seem that hitting the necks with the power to anneal them should tend to leave the body too hot to touch?

Nice unit and I really like the auto feed.

Yes, I catch samples in hand and didn't get burned just to show efficiency of my mashine and the purpose of the fan...it is extremely strong (from welding machine).
The point is hitting the necks with the power of proper inductivity for the short time (under 2 sec.) but for proper annealing and in combination with this fan it leave the body of case not hot to the touch at all, as you saw in the video.
Thanks a lot!

 

[js2013]

Very nice!

 

[Hoot]

I love it! I made a simpler one myself but nowhere near the sophistication of yours. It does the job however.

Congrats

Hoot

 

[Vasko J]

Very nice!

Thanks!

 

[Vasko J]

I love it! I made a simpler one myself but nowhere near the sophistication of yours. It does the job however.

Congrats

Hoot

Thanks Hoot!

 

[kiwijohn]

I hold my cases in my finger tips, and run them through a gapped ferrite core / litz wire arrangement. They are getting too hot to hold at the base by about 9 seconds, they are in the anneal for 5.5 secs. And I get about the same anneal as in this video, just coming onto the shoulder neck junction. I run a lot lower power supply (34v)

 

[Vasko J]

Yes, that's clear. My heating time is under 2 sec. and from my point of view, any heating time longer than max 3 sec. is too much for .308, 6.5 Creed...etc. brass case in long term becouse longer exposure and temperature expansion after 4-5 annealing can deform the bottom of the case over time, especially the primer pocket...and make it unusable.
Here's a great video on how to make a dedicated coil designed for specific inductance for annealing brass...

 

[ebb]

Holy crap did you work for NASA in your earlier life?

 

[Vasko J]

Holy crap did you work for NASA in your earlier life?

They couldn't pay me ㋡