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Food Dehydrators & Paint Dryers


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#101 Miatatom

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Posted 14 July 2012 - 12:45 PM

Painted model car parts, naturally. As for keeping the dust off, yes it does. Now, if I can just keep it off the stuff before I put them in there.

#102 Monty

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Posted 29 July 2012 - 12:29 PM

Tom, looks like you've created an inexpensive alternative to a food dehydrator, but I'm curious about something. What made you decide on a 20" height? (I'm guessing you've made some calculations based on the radiated heat of the bulb vs the melting point of styrene).

Is the lining material Dynamat?

#103 Harry P.

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Posted 29 July 2012 - 12:32 PM

And when you're not drying paint you can incubate chickens! :lol:

#104 crazyjim

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Posted 29 July 2012 - 12:38 PM

More cluk for your buck, I always say.

#105 Miatatom

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Posted 29 July 2012 - 02:02 PM

Tom, looks like you've created an inexpensive alternative to a food dehydrator, but I'm curious about something. What made you decide on a 20" height? (I'm guessing you've made some calculations based on the radiated heat of the bulb vs the melting point of styrene).

Is the lining material Dynamat?


Thanks for making it sound like I really thought this out and it was a very scientific approach but the truth is that's the amount of plywood I had. :)

I also wanted it to be tall enough so that I could add some shelves for more space if I needed it. I would use some sort of rack like in an oven if I made a shelf. Don't know if I will ever need it though.

Yes, the material is Dynamat, I think. It was left over from the Factory Five Cobra I built. I guess that's what FF uses.

Edited by Miatatom, 29 July 2012 - 02:04 PM.


#106 charlie8575

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Posted 02 August 2012 - 12:43 AM

With the coming extinction of incandescent bulbs in the U.S., have you looked at alternatives, such as an aquarium heater? Or will you switch to a 40W bulb and just wait far longer?

I do know that some halogen lightbulbs will continue to be made, Sylvania, I understand, is actually making them in the U.S., too, in a plant in Kentucky. They're a little lower wattage, but should still produce adequate heat to work, it just may take a little longer.

Interesting idea, and nicely done.

Charlie Larkin

#107 Miatatom

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Posted 02 August 2012 - 12:28 PM

Actually, I've got a bag of incandescent bulbs that we saved when we switched the house over to fluorescent so I've got quite a stash.

#108 ffreak

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Posted 02 August 2012 - 02:32 PM

That's pretty neat there Tom !! If I wasn't using the dehydrator I swiped from the wifey, i'd make me one !!! :rolleyes:

#109 Ringwraith

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Posted 23 August 2012 - 01:55 PM

Heya Tom, that looks great!
How's it working out for you?

I'm going to build one as well. Is it cutting down the drying/curing time dramatically??
How did you come up with the 105 degrees?
The dimmer is a great idea. Do you use a thermometer to watch the temp?
I was just reading that those easybake ovens can hit 375!!
They use 100W bulbs.
I remember melting little army men in my buddies
sisters easybake when we were kids!! lol
Would hate to melt my cars! ;-)

Cheers
Sean

#110 blueoval92

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Posted 01 September 2012 - 08:31 AM

thats nice man, i waiting to finish buying up the list of cars i currently want then i plan to buy a dehydrator and attach the top to my paint booth so it can double as a drying oven. anybody know how hot those dehydrators get?

#111 CadillacPat

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Posted 02 September 2012 - 07:03 AM

The metal or composite lining will help a great deal in retaining and evenly distributing temperature.
I used a similar material in lining my CadillacPat Fact-O-Bake Ovens,

Posted Image

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#112 CadillacPat

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Posted 02 October 2012 - 07:34 AM

Miatatom, you're working with plastic so 105 degrees is just fine. You only want to assist the curing of the paint, not bake it as can be done with metal diecast.
You might want to add a layer of 3/16" glass as a shelf just below the bulb.
The glass will absorb and distribute heat evenly while preventing dust or small insects from falling on freshly painted subjects as they dry.

CadillacPat

#113 hooterville75

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Posted 02 October 2012 - 01:29 PM

Question for someone in regards to the ovens. As long as you have a heat control on the oven why would it matter what heat source your using if its enclosed ? I have a little oven type machine that was bought specifically back when I raced go karts to put the engine block halves from our engines in to cook them to punch the crank seal out. Would that work ?

#114 Miatatom

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Posted 17 October 2012 - 03:41 PM

Question for someone in regards to the ovens. As long as you have a heat control on the oven why would it matter what heat source your using if its enclosed ? I have a little oven type machine that was bought specifically back when I raced go karts to put the engine block halves from our engines in to cook them to punch the crank seal out. Would that work ?


Should work as long as you can get the temp down around 100-110F.

Ah go karting. Tried that back in 1989 and promptly broke my back. Raced motocross, hare scrambles and enduros and never hurt myself. Thought go karts would be safer since I'd turned 45 in 1989 and wanted "something safer". :rolleyes:

#115 Cato

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Posted 22 October 2012 - 03:54 AM

Tom,
While curing at 105-110, do you find that the temp inside creeps up to the 120+ level?
If you leave it for 5 or 6 hours, is the temp still 110 after that much time?

#116 Miatatom

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Posted 22 October 2012 - 03:30 PM

I haven't measured it since I "calibrated the dial". When I first built it, the temp stayed steady for a couple of hours. I think I'll check it again and see.

#117 cherokeered

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Posted 17 December 2012 - 12:23 PM

So I got a new cheapo food dehydrator (fan type) that has no temperature control on it.  I have read on here guys who have used a fan control set up for the convection type but I have the fan type.  It runs at over 140 degrees and over 120 degrees with the lid completely removed so adding vents won't help.  How can I control the temp on this thing and bring it down to 105-110 degrees?



#118 mikemodeler

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Posted 17 December 2012 - 12:45 PM

There is a great article in "the other model magazine" this month's issue about this very subject, you may want to check it out. Bob Downie was the author, he goes by the screen name Zoom Zoom here, I am sure he would answer your questions.



#119 Guest_G Holding_*

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Posted 17 December 2012 - 01:23 PM

Bob said to leave the top off and use a thermometer

 

if yours is a fan type, no dimmer controls unless you know how to split a circuit



#120 Art Anderson

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Posted 17 December 2012 - 02:25 PM

Bob said to leave the top off and use a thermometer

 

if yours is a fan type, no dimmer controls unless you know how to split a circuit

Actually, you can buy a dimmer control, as used for dimming say, a table lamp, and that will work I'd be pretty sure.  It's like an extension cord, with a slide dimmer control in the circuit.

 

Art