DIY annealing machine

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s8mdevo

Well-Known Member
Supporter
So I had some spare time over the past week and decided to have a crack at building a brass annealer.

I watched a few videos on Youtube and made one based off of some DIY projects on there.

I did not go all out and make it auto feed and I know it is very basic but it does the job. It is basically a small motor which runs via a speed controller that allows you to sit the case in the flame for as long as you like depending on the size of the round. Obviously a .300wm needs longer than a .223. The digital display shows a number which is of no relevance (it goes from 0-100) Once I have the case in the flame for the desired time I write down the number for future reference.

Most of the components came from eBay and the total cost was £34 for the parts. I used leftover ply from a job to build the box housing.

Thought I would share with you guys as these machines cost an arm and a leg and there is not that much to them.

Here is a list of the bits I used to make it if anybody is interested, it really wasn't that difficult at all.

Metal Drum - PME Round Cake Pan Baking Tin - 3 Inch Deep - All Sizes | eBay

Speed controller - DC6-30V 12V 24V Max 8A Motor PWM Speed Controller With Digital Display Switch SU | eBay

Motor - 1PC DC 12V 25 RPM High Torque Gear-Box Stabilivolt Electric Motor Replacement | eBay

Power plug - 24W AC/DC 12V 2A Power Supply Adaptor 3 PIN UK Plug For 5050 LED Lights Strips | eBay

Power jack - 2.1MM X 5.5MM PANEL CHASSIS MOUNT DC SOCKET CHARGER POWER JACK PLUG - SMALL | eBay

Motor prop - Great Planes GPMQ4945 Set Screw Prop Adapter 8mm to 3/8x24 Output Shaft,

IMG_20171128_182150.webpIMG_20171128_182200.webpIMG_20171128_182208.webpIMG_20171128_182219.webp

I can't get videos to upload just the photos but hopefully this link works Shared album - Sam Devlin - Google Photos

Cheers
Sam
 
Thank you for doing this and posting the parts list - I'm going to give it a try based on your parts list.
 
Very nice work.

I guess you could use different depth cake tins for smaller cases, i.e. 22 Hornet, 223 or 30-06.

Was the torch just resting on the plastic dish or is there a clamp of some kind holding it in position?
 
Cooter said:
Very nice work.

I guess you could use different depth cake tins for smaller cases, i.e. 22 Hornet, 223 or 30-06.

Was the torch just resting on the plastic dish or is there a clamp of some kind holding it in position?
Click to expand...
I cut the pan approx 50mm and it's perfect for .300wm and for .308 and .204 I put a ply spacer for each cut like a donut that sits over the nut.
 
The torch was just sitting on the floor, I will eventually get around to making some sort of clamp system. Or even the bottle fixed/clamped to the back of unit and a longer flexible torch hose would be best. Need to look into options
 
This is why i use this site massive amount of info and ideas.on occasion some bull talked but generally great stuff like this.
long may it carry on great post well done that man keep them coming.

regards Bally
 
Looks ok but it is very similar to the one I already have Rothenberger Super Fire Torch Propane Gas Cylinder | Gas | Screwfix.com

I was hoping to try and use something like this nozzle Rothenberger Swivel Pro Twin Burner Torch | Blow Torches | Screwfix.com and connect it to a short piece of hose. The idea is to clip the hose to the unit and fix the torch head in some kind of adjustable mount so I could then just attach the propane/butane bottles when needed, and when not in use disconnect the bottles and store with the hose and torch still connected. I just need to find the suitable fittings to get from the torch head to the bottle and it should be relatively easy.

As for the auto feed, with the amount of cases I will be reloading it doesn't seem worth the hassle.
 
s8mdevo said:
Looks ok but it is very similar to the one I already have Rothenberger Super Fire Torch Propane Gas Cylinder | Gas | Screwfix.com

I was hoping to try and use something like this nozzle Rothenberger Swivel Pro Twin Burner Torch | Blow Torches | Screwfix.com and connect it to a short piece of hose. The idea is to clip the hose to the unit and fix the torch head in some kind of adjustable mount so I could then just attach the propane/butane bottles when needed, and when not in use disconnect the bottles and store with the hose and torch still connected. I just need to find the suitable fittings to get from the torch head to the bottle and it should be relatively easy.

As for the auto feed, with the amount of cases I will be reloading it doesn't seem worth the hassle.
Click to expand...

The Rothnbergers are top quality - but pricey! At £3.18 - you can't go wrong really. I got one (it did take some time to arrive from china - about 10 days) - but works very well and those spray-can sized butane bottles are about a quid from the pound shop.
 
What angle did you put the motor/cake pan at? Did you have to play around with that or will any small angle do? Looks like about 20 degrees off from looking at it?
 
aris said:
What angle did you put the motor/cake pan at? Did you have to play around with that or will any small angle do? Looks like about 20 degrees off from looking at it?
Click to expand...
I think I got lucky and it worked first shot, I don't think it is that critical TBH, as long as it is angled slightly back so the case doesn't fall out I'm sure it will work.

My dimensions are on this photo if that helps.
05c4d0fe757f38a0708f65fcd855d1f2.jpg
 
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