Anyone made a baking oven?

josquin

josquin

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I have some Brownell's baking epoxy I'd like to use on a .303 sporter and have been thinking of making a baking oven.The idea so far is to make a suitable box and lid from cement board and line it with 3/4" rigid fibreglass and a reflective metal skin (made from metal heating duct or whatever) but the main question is what to use for the heat source. Given that I need about 300-325 deg. F, I thought of of using several 75w halogen lamps (in ceramic bases) or even 100w tubular halogen bulbs if I can get the fixtures. I suppose there are various heating elements that could be used as well but I'm not sure what would be readily available. A rheostat would also be useful to control the temperature. I'd leave a small hole for inserting a thermocouple to check the temp.

Anyone built something like this?

:) Stuart
 
why not just get a regular stove and modify it to suit your needs..a sawsall and a bit of tinand bit of insulation is all you need...
in fact ever house has a stove;) :) .. i dare ya..;)
and post a pic:)
 
A toaster oven is fairly handy parts source for this project. The ones with rod type heating elements works a little better. With a toaster oven you get approximate heat control as well. The green rock wool insulation from Home Depot is rated high enough for the application. I haven't used it though, I used Koawool 2600 degree ceramic blanket. A fan to circulate air in the oven will help keep the temperature more consistant. I doesn't have to be in the oven and it doesn't have to move much air, just enough to keep things moving.
 
Anvil said:
A toaster oven is fairly handy parts source for this project. The ones with rod type heating elements works a little better. ..
Click to expand...

Rod elements sound like what I need; any appliance parts place should have those, and the necessary mounts. For insulation I was going to use rigid fibreglass ceiling panel with the white facing removed. I've used this to protect a wall when soldering water pipes. It does singe at 1000 deg. from a propane torch but 300-400 deg. should be no problem. Thanks for the tip about the fan. A small CPU cooler fan underneath would do the trick, anad a few small holes in the lid. If the unit were mounted on a frame at table level, I might be able to provide adequate circulation via convection alone by putting a flue underneath.

:) Stuart
 
hicaliber.

Thanks for reminding me of that- I had in fact seen that some time ago and forgotten about it. Looks like a skookum setup.

:) Stuart
 
the first gun oven i had i built myself using spare parts except for the body of the oven. it was a piece of rigid high temp pipe insulate that i slit in half lengthwise on one side so as to hinge open like a bbq. made wooden ends wrapped in foil to reflect the heat in and hung the barreled action on a rod through the barrel. took the electric coil from an old space heater and strung it out the length of the oven, used a piece of furnace duct cut in half as a relflector from under the wire and a controller from the toaster oven. It works fine if you want to do one or 2 guns but the temp would fluctuate a lot.

Now i have a custom built oven that will hold 2 guns at one time, thermostat controls and works great. cost me the price of a rifle but works great.
 
gunpro said:
the first gun oven i had i built myself using spare parts except for the body of the oven...
Click to expand...

This sounds similar to the setup in the link mentioned above by hicaliber. Great minds think aike!

:) Stuart
 
Least complicated set up for a gun oven is--
(A)Go to used appliance store and purchase an electric oven. Stove must be functional but can look crummy as long as it functions on all the oven and top element controls.
(B)Pick up a used pressure tank for water or whatever 18-24in in diamiter. (C)Decide how long you want the working area of the oven to be.
(D) Cut pressure tank to correct length and set up against side of oven.---Scribe or mark with magic marker the side of the oven and cut hole in side to slide in pressure tank. Install and seal with furnace cement
(E) You can move one electric element down to provide a heat source in this extension.
A picture availabe for those interested.
 
rgwhitman said:
Least complicated set up for a gun oven is--
(A)Go to used appliance store and purchase an electric oven. Stove must be functional but can look crummy as long as it functions on all the oven and top element controls.
(B)Pick up a used pressure tank for water or whatever 18-24in in diamiter. (C)Decide how long you want the working area of the oven to be.
(D) Cut pressure tank to correct length and set up against side of oven.---Scribe or mark with magic marker the side of the oven and cut hole in side to slide in pressure tank. Install and seal with furnace cement
(E) You can move one electric element down to provide a heat source in this extension.
A picture availabe for those interested.
Click to expand...

That is much more complicated then the one in the link and would require huge amount of space.
Space is at a premium in my little shop.
 
Here is the one a friend and I made. It is a piece of 6" stove pipe wrapped with fiberglass insulation inside an 8" piece with reducers inside each end to close off between the 6 and 8" pipe. I made a sliding damper for the top using sheet steel and an end cap for a stove pipe.
We cut a hole through the top of the oven under the big burner and put the pipe down in the hole for the burner. It's a nice snug fit.
The second pic is the thermometer we use to monitor the temp. I drilled a hole through the side of our "chimney" and put a piece of brake line in it that the probe fit in.
I was baking a barrel when I took this picture. The temp is on it's way to around 325.
We also have a probe in the oven.
We only do barrels in this stove now and use a toaster oven for the small parts.

stove.jpg

therm.jpg


Here is the before and after of the barrel I was doing.

Marlin013-1.jpg

marlin013A.jpg


Ya I know..the band is on reversed..
 
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That's a clever rig. When I build my new house I will have an old stove left over so I guess I should put it to use. I've occas. worried that a vertical setup might result in uneven temperature, but I guess once the appropriate temp. is reached it evens out OK.

:) Stuart
 
josquin said:
That's a clever rig. When I build my new house I will have an old stove left over so I guess I should put it to use. I've occas. worried that a vertical setup might result in uneven temperature, but I guess once the appropriate temp. is reached it evens out OK.

:) Stuart
Click to expand...
We have a piece of sheet steel laying on the rack in the oven to act as a baffle so the heat has to go "around" it and not directly up into the stove pipe.
Also we haven't done a barrel yet that was hanging down in the oven it self.
I forget the actual lenght of our pipe, but between it and the reducers it is over 36" long.
 
Griffoneur said:
If you want to bake your rifle, take it to the local pizza shop. It will fit in a pizza oven and you can have lunch at the same time.
Click to expand...

You have to be careful to keep the cheese out of the action, however. :D

Stuart
 
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