New oven build

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duke46
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Re: New oven build

Post by duke46 » Thu Jan 30, 2020 10:07 am

GoodB0Y wrote:
Wed Jan 29, 2020 6:21 pm
Anyone seeing anything wrong?
I can see the pictures but not very well. After photobucket started charging even for a small account that use to be free most every one left them and then if you are not a member any longer then it takes long time at least for me to even open the page so there is no way I can see the pictures large enough to even advise.
Sorry
All I have said is said just for meanness so I don't have to argue with anyone!

http://www.pcitdad.com" onclick="window.open(this.href);return false;

GoodB0Y
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Re: New oven build

Post by GoodB0Y » Sun Feb 09, 2020 11:35 pm

It works!

400f in about 20 mins... didn't run the auto tune yet but the pid stayed on till about 390 then slowly cycled.

Still have work to finish but I hope to spray something here soon...

Yay!

Thanks for all the input guys... appreciated!

WiseAssYT
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Re: New oven build

Post by WiseAssYT » Mon Feb 10, 2020 8:20 pm

You should run your oven around 425 or even warmer makes the temp recovery that much easier.

Remember It’s part temp not oven temp

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duke46
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Re: New oven build

Post by duke46 » Tue Feb 11, 2020 9:23 am

GoodB0Y wrote:
Sun Feb 09, 2020 11:35 pm
It works!

400f in about 20 mins... didn't run the auto tune yet but the pid stayed on till about 390 then slowly cycled.

Still have work to finish but I hope to spray something here soon...

Yay!

Thanks for all the input guys... appreciated!
If it want start cycling till around 390 then do not do AUTO TUNE and I wish I had never done it because it wants to start a lot sooner than that.
All I have said is said just for meanness so I don't have to argue with anyone!

http://www.pcitdad.com" onclick="window.open(this.href);return false;

GoodB0Y
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My Location: Vancouver

Re: New oven build

Post by GoodB0Y » Sun Feb 16, 2020 12:28 pm

Ran the oven a couple times now and yeah pid starts to cycle around 390f...

I agree no need for the auto tune.


24 minutes to get to 400f from 58f...

A little slow maybe?

WiseAssYT
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Re: New oven build

Post by WiseAssYT » Sun Feb 16, 2020 5:33 pm

Yes that is too long ! It’s the main reason large electric ovens just don’t work well in this hobby ... it will take even longer with parts in it !

Propane or gas , period .

Hope you are keeping track of all the money you spent and time you’ll never get back.

GoodB0Y
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My Location: Vancouver

Re: New oven build

Post by GoodB0Y » Sun Feb 16, 2020 9:40 pm

WiseAssYT wrote:
Sun Feb 16, 2020 5:33 pm
Yes that is too long ! It’s the main reason large electric ovens just don’t work well in this hobby ... it will take even longer with parts in it !

Propane or gas , period .

Hope you are keeping track of all the money you spent and time you’ll never get back.
Oh my godess!

I'm at 144 watts per square foot and everything I've read in this forum said I should be good....

Oh well... I'm only 3 grand into this endeavor... I'll chuck it for scrap and stick to crayons and coloring books...

Thanks for the advice

WiseAssYT
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Joined: Thu Aug 27, 2015 12:16 pm
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Re: New oven build

Post by WiseAssYT » Mon Feb 17, 2020 11:29 am

Everything you read ? No way !

Its why we use a propane burner and ditch the electric ones.

To build an efficient electric oven means you need more power than your homes power supply can provide.

Your powders will spend to much time in the gel and flow stage and give you issues when doing multiple coats.

Don’t blame me , blame the people who say shit with no actual knowledge or background and just copy designs .

GoodB0Y
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Re: New oven build

Post by GoodB0Y » Mon Feb 17, 2020 2:15 pm

Yes everything I've read and the advice I've been given in this thread by others...

Not blaming you at all!

You are right that 24 minutes is a bit long...

I just think you're wrong that my oven is large at 36 square feet and that a normal electrical service to a house can't support an electric oven...

I do appreciate your advice though and you are very good at what you do :)

Anyway...

Looking at my burners I see about 1/4 of one of the burners not glowing ... thinking I might have an issue with that burner.

So I do have the option of getting bigger burners... currently have 2 2600w and my electrician says I should be fine with two 2800 to 3000w burners on my circuit.

May have to do that or replace the defective one.

Replacing the burners I have now with 3000w would bring me to 166w per square foot from the 144 I am now.. although a small gain at 15% it would certainly help.

Thanks again!

GoodB0Y
Posts: 47
Joined: Tue Dec 31, 2019 4:03 pm
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Re: New oven build

Post by GoodB0Y » Tue Feb 18, 2020 10:31 pm

Replaced one 2600w element with a 3000w element and I get exactly 20 minutes to 400 with my fan on...

This puts me just under the 80% rule for a continuous circuit draw...

Acceptable?

Can I start powder coating things please...

*edit*

After an hour of sitting it took 16 minutes to get to 400.
Last edited by GoodB0Y on Tue Feb 18, 2020 11:52 pm, edited 1 time in total.

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