Thread: Annealing questions

Originally Posted by northdude

Just be careful and watch a few YouTube clips one I watched the guy was getting the brass way to hot compared to the other clips I watched

How can u tell? Most of the YouTube ones show guys not using Tempilaq to indicate. I use a high temp (shoulder area/inside neck) and low temp (base) to set up and then once I have the timing right away I go. Personally know of a guy who overcooked the base - result, a dramatically expanded base and primer pocket and lots of gas trying to escape backwards/jammed bolt.

They were really glowing like in one clip where they domoed a couple of times what colour a case goes when its to hot

Originally Posted by northdude

They were really glowing like in one clip where they domoed a couple of times what colour a case goes when its to hot

Yeh, crazy. YouTube is bloody dangerous.

I did a test to destruction on my annealer. Using 308 CAC brass I increased the heating time from 4 secs in 1/4 sec intervals up to 8 secs. The best result was at 4 1/4secs. At that point the Tempilaq was indicating all good and when viewing down the neck (room darkened) there was a momentary dull glow as the annealer indexed. You had to look hard to see it. The 8 secs ones had the neck glowing red for around 3 secs and the low temp Tempilac melted right down to the rim.
Interestingly I then did some ADI brass with similar neck thickness to the CAC and I had to change the 4 1/4 secs time by 1/4sec to get a result the same as the CAC.

Originally Posted by P38

Ok here is a ebay list and a rough drawing of the dimension's i used to build my annealer.

8><---

A bought one is $600 odd, so a DIY for $150 ish is a great idea.



Controller, well I was looking for a wee arduino project looks like Ive just found it!

@P38, roughly what size is the pan you use as a drum?

Originally Posted by steven

A bought one is $600 odd, so a DIY for $150 ish is a great idea.



Controller, well I was looking for a wee arduino project looks like Ive just found it!

So I'm off,





The clamps are really good wee things for $20 odd from supercheap auto stores. They are quite weak but Ok for light work like this.

un-fortunately the wife has buggered her leg so is laid up in bed and cant catch me working on the dining room table.

Originally Posted by gadgetman

@P38, roughly what size is the pan you use as a drum?

@gadgetman

It's 5" to us children from the 60's

Or

127mm for you younger buggers

Cheers
Pete

Yeah where do you get the pan?

Originally Posted by P38

@gadgetman

It's 5" to us children from the 60's

Or

127mm for you younger buggers

Cheers
Pete

Thanks Pete. Though I'm from the 60's and prefer SI units.

Originally Posted by steven

Yeah where do you get the pan?

All electronic parts including the pan came from Aliexpress
http://www.aliexpress.com/item/5-inc...451318400_6150

Cheers
Pete

Originally Posted by steven

Yeah where do you get the pan?

All electronic parts including the pan came from Aliexpress
http://www.aliexpress.com/item/5-inc...451318400_6150

Cheers
Pete

Alternative cake tin mold,

NEW Round Cake Fondant Decorating Mold sugarcraft Tins Pan Bakeware Tools mold | eBay

I'm all thumbs but I still managed to get a working annealer up and running using only youtube as a guide. There's plenty of advice around on how to make these.

One tip i'll add for free, if you're using a std blue bottle butane torch then 8 seconds in the flame should be plenty. its just on the border of not being hot enough so you only need to make sure you don't let them glow in daylight.

Depends on brass thickness due to caliber of course.
What cal are you annealing for 8 secs?
Any pics of the finished annealer?


Sent from my SM-G900F using Tapatalk

Available at various stores :

RELOADERS, WORKSHOP INNOVATIONS online , THE GEAR LOCKER online , RUSTY DOG OUTDOORS , OUTDOORSMAN HEADQUARTERS,