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Tool Time Let's talk shop. Equipment, Tips & Tricks, Safety issues - Post it here.

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  #1  
Old 12-02-2006, 08:38 PM
TJ Smith TJ Smith is offline
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Heat Treat Oven

Just finished the oven by Andy Gascoigne .
Good tutorial good infomation.
I set up a digital control by Auber. Doesn't ramp, but will hold temp within 1-2 degrees of set temp.
Takes 8 min to hit 1500 degrees. I think a little warm up time would be good.
I calibrated my control with the K-thermocouple in a glass of ice water.
I am planning on checking performance with some witness cones and temp sticks.
Does anybody have a way to check temps.
Thanks Andy for the great tutorial.
take care
TJ Smith


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Old 12-02-2006, 09:51 PM
jim graham jim graham is offline
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Tj, If you can, Please post some pitcures of your oven. What size did you make the inside. Good luck with it, Jim
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Old 12-03-2006, 11:46 AM
EdStreet EdStreet is offline
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I am interested in hearing about your experiences on this project. I am in the process of building a high temp oven furnace myself. What controller did you use, what elements and am wondering if this is the same tutorial I was looking at recently.

Ed


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Old 12-03-2006, 07:28 PM
TJ Smith TJ Smith is offline
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oven

OK Here's a couple pics.
I pretty much followed Andy's plan. My oven is 5" wide by 4.5 " tall by 18" long inside .
My elements are the same as Andys. Used the same method to put in grooves for the elements.
I am looking for ways to check out the high temperatures.
Had it up to 1312 c thinking it was on F. No damage but Home Depots high temp mortor melts and bubbles at that temp.
I used element wire from Seattle Pottery Supply
I see someone brought up the tutorial that Andy made so just follow it and you'll be ok
Take Care
TJ


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Last edited by TJ Smith; 12-03-2006 at 07:37 PM. Reason: pics
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Old 12-03-2006, 07:30 PM
EdStreet EdStreet is offline
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from the digital controller what did you put between that and the elements?

Also no photo's came thru on my end.

Ed


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Gold is for the mistress - silver for the maid
Copper for the craftsman cunning in his trade.
"Good!" said the Baron, sitting in his hall
But steel - cold steel is master of them all.
Rudyard Kipling (1865 - 1936)
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Old 12-03-2006, 07:42 PM
TJ Smith TJ Smith is offline
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Beats me i uploaded a couple pics and they're somewhere on the site but dammed if I can find em.
TJ
Attached Images
File Type: jpg oven.jpg (10.1 KB, 88 views)
File Type: jpg ovenfront.JPG (12.1 KB, 107 views)


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Last edited by TJ Smith; 12-03-2006 at 10:57 PM. Reason: pics
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Old 12-03-2006, 10:22 PM
EdStreet EdStreet is offline
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did you put in any door switches, in use lights, relays or anything like that?

Ed


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Gold is for the mistress - silver for the maid
Copper for the craftsman cunning in his trade.
"Good!" said the Baron, sitting in his hall
But steel - cold steel is master of them all.
Rudyard Kipling (1865 - 1936)
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Old 12-03-2006, 10:51 PM
TJ Smith TJ Smith is offline
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No door switches or lights.The controler lights up when main power is on. Then i have a seperate switch that powers the ssr relay which turns on the oven elements.


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Old 12-03-2006, 11:09 PM
EdStreet EdStreet is offline
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was looking at relays tonight for the elements. then I decided to go with the 12v ssr option so I can do a door switch and some type of on/off light. what type of relay did you end up using?

Ed


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Gold is for the mistress - silver for the maid
Copper for the craftsman cunning in his trade.
"Good!" said the Baron, sitting in his hall
But steel - cold steel is master of them all.
Rudyard Kipling (1865 - 1936)
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  #10  
Old 12-04-2006, 09:42 PM
TJ Smith TJ Smith is offline
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I bought a ssr relay from ebay its a 20 amp and takes 3-24 volts dc to power it. I bought a relay but deceided to go with a ssr because of the switching on and off. My controler is constantly switching on and off. My controler was for relays so I am powering the ssr with a external power source works great.
Well, I am going out to the shop and play with it.Got to test the temp.
Take Care
TJ


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