Homemade heat treat oven

bladsmth said:
Normally, the door frame is thinner, and the bricks are trimmed so they stick out and fit the chamber by about 3/4".

Her is how you can do to modify yours, without trying to glue on pieces of brick or making a new door:
Mark the inside frame edges on the door bricks with a knife.
Disassemble the door, and set the bricks aside for the moment, keeping them in their positions.
Cut some extra bricks to 3/4" thick, and fit to the door frame so they sit against the sheet metal.
Cut a rabbit in the old door bricks so they fit in place over the thing bricks, and stick out.
Trim in a slight wedge shape (10-15 degrees) so they will self fit the chamber with a few open/close motions. They will show the snug places and you can trim until the fit is dead tight when the door closes.

If you decide to go with adding a piece to the existing door, use a piece of Insulboard and some stainless sheet metal screws, as well as the cement you showed. It will hold up better than thin pieces of brick.
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Thanks Bladsmth. Where can I get Insulboard?
 
Rick Marchand said:
It looks as though Sugar Creek cut a .75" deep pocket in the door and cemented in 1 1/2 bricks. It is not a flush mount like my first suggestion. Perhaps with expansion and contraction, the flush mount is dodgy. Stacy's idea is definately more sturdy. Either way, it's wise to address the seal.

Rick




IMG_0067-4.jpg
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I think I'm going to try the way Suger Creek done it. This seems like it'll be the easiest way. I hope.
 
You can also get insulating rope and staple it around the perimeter of the door and the face of the kiln, then when you close and lock your door, it compresses the rope together giving a good seal without worrying about weight or fit. Is this the build from british blades?
 
tattooedfreak said:
You can also get insulating rope and staple it around the perimeter of the door and the face of the kiln, then when you close and lock your door, it compresses the rope together giving a good seal without worrying about weight or fit. Is this the build from british blades?
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Yes it's the same build as British blades. Except I'm using only one 240v element.
 
Here it is after I got a little carried away with the mortar.

Also had to re groove the two front bricks.

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Very clean. How did you line it up with the chamber? Simple measuring or do you have any tip/tricks?
 
Rick Marchand said:
Very clean. How did you line it up with the chamber? Simple measuring or do you have any tip/tricks?
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Thanks Rick. When I built the case I made it so that I could remove the top at anytime. So I put all the front bricks in place then closed the door and marked it out. I want to thank you for pointing the door seal out to me I hadn't really thought about that much till you commented about it.

Thanks Brad
 
cbr900son said:
This thread makes me wish I can weld. Id love to build my own!
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You can build it. It's not that bad. This was only my third time to weld. Borrowed welder from my uncle. I was intimidated by the welding too. Just do it. Ask around somebody will help you.
 
OK this question had been burning in the back of my mind! You built the box and then ordered the brick if I have been following this correctly. :eek:

How the heck did you know what size to build the box? Those kind of brick come in several sizes!

I would have had to figure out how I was going to stack the bricks and then do measurements off the brick! To figure out the size of the case!:foot::D

Hey how about a total parts list and order sites for someone in the future that may want to build one!
 
Dixieblade57 said:
OK this question had been burning in the back of my mind! You built the box and then ordered the brick if I have been following this correctly. :eek:

How the heck did you know what size to build the box? Those kind of brick come in several sizes!

I would have had to figure out how I was going to stack the bricks and then do measurements off the brick! To figure out the size of the case!:foot::D

Hey how about a total parts list and order sites for someone in the future that may want to build one!
Click to expand...


I knew the measurments of the bricks and went with that. Had to use the 60 grit sand paper on a few of them to help them fit. But I was pretty close though.

Here what I ordered.

PID http://www.auberins.com/index.php?main_page=product_info&cPath=1&products_id=4
SSR's http://www.auberins.com/index.php?main_page=product_info&cPath=2_30&products_id=30
Heat sinks http://www.auberins.com/index.php?main_page=product_info&cPath=2_30&products_id=224
Thermocouple http://www.auberins.com/index.php?main_page=product_info&cPath=20_3&products_id=39
PID box http://www.auberins.com/index.php?main_page=product_info&cPath=7_34&products_id=166
Element http://www.budgetcastingsupply.com/Heating-Elements.php I got the 240v one.
High temp wire http://www.budgetcastingsupply.com/wire.php
24 fire bricks http://www.budgetcastingsupply.com/Fire-Brick.php
Electrical insulation board http://www.budgetcastingsupply.com/Insulation-Board.php

I think thats all. Everything else I got locally.
If I forgot something just ask.
 
Dixie, the plans he used are from the BB site and although I can't find it again online, I have the PDF saved on my home computer. It gives exact measurements so it would have been easy to build and make sure he ordered the correct bricks. As he said, he had to sand a little but he would have had to anyway to get a good fit.
 
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