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Thread: DIY Automated Annealing Machine

  1. #1
    Member kimjon's Avatar
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    DIY Automated Annealing Machine

    Something I've always wanted, but never been able to justify. So as always when stuck in this situation I'm going to have a crack at making one.

    I've made a start, and am waiting on a couple parts to arrive to finish it off. If I suddenly delete this post, you'll know I jumped the gun and shared this to soon and I have failed...and taken to it with a hammer. But if I post more pictures, then you can assume it's all going well and everything's rainbows and ponies!

    Anyway, the idea isn't original. It's been done before, but this is my version of it:


    Step 1:

    Buy a $3 cake tin from the warehouse.


    Drill a hole in the centre (you can see my making out above, two right angles at any point on the circumference always meet in the centre).

    Then cut a slot out of it. The size isn't that important right now, it will possibly made larger later on after testing?

    Step 2:

    Purchase a BBQ rotisserie, these have a small reduction gear box inbuilt. They are cheap and designed to run for a long time, plus they are cheap



    Connect it up to your cake tin and you're about half done.




    step 3:

    Time to make a stand! Not about hunters rights or the evils of 1080... no, a stand as in something to hold the above parts.



    MDF, the back of a hilux as a work bench and a skill saw...can you get any more kiwi male than that!







    Motor all mounted, just use brackets that come in the kit with the rotisserie (note I'm not using the term "spit-roast" just in case @R93 goggles it).


    Step 4:

    Getting the cases into the cake tin.

    To do this, there will be a basic hopper, with a timed wheel that will collect and transfer a brass case from the hopper
    and into the rotating cake tin.



    Yes it is a skateboard wheel...but what did you expect, the other main component is a $3 cake tin!


    Step 5:

    Ummmm this is where I'm waiting on some trademe purchases to arrive so I can finish it.

    So that's all for about a week while I'll wait for couriers to arrive.

    Kj
    Last edited by kimjon; 25-02-2016 at 04:45 PM.

  2. #2
    Member Tommy's Avatar
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    I think I see where you're headed.. Have you kept the bit of cake tin you cut out? That should rivet on nicely

  3. #3
    Member kimjon's Avatar
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    This should give you a better idea, its just taped together for the sake of taking a photo.



    That's all I can do until more parts arrive.

    Kj
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  4. #4
    P38
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    Good work so far @kimjon

    I made my own based on a design from Skip on the Aussi Hunting forum as seen here.
    http://www.nzhuntingandshooting.co.n...estions-24700/

    How are you going to vari the rotational speed of the cake tin to adjust the length of time required in the flame to acheivel the correct annealing temperature.?

    Cheers
    Pete

  5. #5
    Member Tommy's Avatar
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    Quote Originally Posted by P38 View Post
    Good work so far @kimjon

    I made my own based on a design from Skip on the Aussi Hunting forum as seen here.
    http://www.nzhuntingandshooting.co.n...estions-24700/

    How are you going to vari the rotational speed of the cake tin to adjust the length of time required in the flame to acheivel the correct annealing temperature.?

    Cheers
    Pete
    By making the hole in the side bigger by the looks.

    I like the look of a spring setup like on this one Auto Annealing Machine , looks like the sort of thing easily boogied up at home but still be reliable
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  6. #6
    Member kimjon's Avatar
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    Yeah skip's was one of the designs that I've stolen ideas from.

    I'm not going to be varying the motor, as it spins at about the right speed. But the size of the hole in the side of the cake tin will be enlarged if cooking time is to long. To fine tune I'll adjust the flame.

  7. #7
    P38
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    Will watch with interest.

    BTW These do such a good job I annealed everything insight in 5 minutes flat and now my annealer is almost redundant.

    Cheers
    Pete
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  8. #8
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by P38 View Post
    Will watch with interest.

    BTW These do such a good job I annealed everything insight in 5 minutes flat and now my annealer is almost redundant.

    Cheers
    Pete
    shoot them then start again!
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

  9. #9
    Almost literate. veitnamcam's Avatar
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    Are you going to join the two rollers together with a pully and belt or something? after all they only need to go the same speed as each other.

    You could vari the speed of the drive with a variable dc supply.
    kimjon likes this.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

  10. #10
    Member kimjon's Avatar
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    Quote Originally Posted by veitnamcam View Post
    Are you going to join the two rollers together with a pully and belt or something? after all they only need to go the same speed as each other.

    You could vari the speed of the drive with a variable dc supply.
    Yes, with a small chain and sprocket (those are the parts I'm waiting on).

    And awesome suggestion on the dc power supply, thank you VC! I'll get a variable resister and boggie it up on the output side.

    Kj
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  11. #11
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    Quote Originally Posted by veitnamcam View Post
    Are you going to join the two rollers together with a pully and belt or something? after all they only need to go the same speed as each other.

    You could vari the speed of the drive with a variable dc supply.
    Often a wide rubber band joins/drives them together

    Cheap too
    kimjon likes this.
    A big fast bullet beats a little fast bullet every time

  12. #12
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    Quote Originally Posted by 7mmsaum View Post
    Often a wide rubber band joins/drives them together

    Cheap too
    +1

    Go for toothed wheels and bands to keep it all in sych.

    I'm waiting on the belts.

    Motor
    http://www.aliexpress.com/item/24RPM...589957986.html

    Speed Controller
    http://www.aliexpress.com/item/PWM-D...388412090.html

    Shaft Pulleys
    http://www.aliexpress.com/item/10pcs...589238470.html

    Motor Pulleys
    http://www.aliexpress.com/item/5pcs-...336088316.html

    Belts
    http://www.aliexpress.com/item/free-...384550219.html

    Got enough coming for 5 double sided units.
    veitnamcam likes this.
    There are only three types of people in this world. Those that can count, and those that can't!

  13. #13
    Member kimjon's Avatar
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    Quote Originally Posted by gadgetman View Post
    +1

    Go for toothed wheels and bands to keep it all in sych.

    I'm waiting on the belts.

    Motor
    http://www.aliexpress.com/item/24RPM...589957986.html

    Speed Controller
    http://www.aliexpress.com/item/PWM-D...388412090.html

    Shaft Pulleys
    http://www.aliexpress.com/item/10pcs...589238470.html

    Motor Pulleys
    http://www.aliexpress.com/item/5pcs-...336088316.html

    Belts
    http://www.aliexpress.com/item/free-...384550219.html

    Got enough coming for 5 double sided units.
    Be keen to see it when it made. Thanks for links, very useful...and man those prices are cheap!

    You'll laugh when you see mine, maybe a bit of overkill, but at least I know it will mince a case before it stops!

    It owes me about $30 all up, then gas torch will be another ~$50 on top of that.

    Kj

  14. #14
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    Last edited by steven; 26-02-2016 at 07:27 AM.
    "I do not wish to be a pawn or canon fodder on the whims of MY Government"

  15. #15
    Member kimjon's Avatar
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    Post pics as you progress Steven. That's why I'm sharing, so people can learn and copy mine...and its great that others such as yourself are adding better information as we go along too.

    I'm an electronics retard, so the BBQ rotisserie appeals to me as you can't get any more easy than plugging into the wall socket and flicking an on switch. But I can definitely see huge advantages in your system, especially if using multiple rifle calibers that each require a specific annealing time.

    Kj

 

 

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