[Shop-talk] oven for powder coat

[lee at automate-it.com]

  I decided to go with the PID controller - publicly because it's  
"more accurate", but honestly, because it's a lot more fun to play  
with! I went with this version - http://a.co/hvTazTK [1]- with the 40  
A relay.

So I couldn't resist checking it out when it arrived - I just set up a  
quickie "easy-bake oven" set to 120 deg F, with a light bulb and a  
plastic container. It works great. See linked photo below. Note the  
"almost" glowing lamp - it's approaching the set temperature, and I  
caught it just as the power was switching. 

  Several projects to clear up before I get the actual oven set up in  
the shop, but this will just be fun.

Thanks for the thoughts,
 Lee

Quoting Lee Daniels <lee at automate-it.com>:

> Wow, that's incredible. I was thinking of something insanely simple,  
> like this:
> https://ebay.to/2MCpgtw
>
> but for even less $$ I can get a digital PID controller? That's crazy.
> Someone who knows more than I do about these: Does the simple  
> thermostat above
> just switch (on/off) the connection to the two prongs on the back?
>
> The nice one below obvious includes derivative control to avoid overshoot.
> More tech than I really needed, but man I had no idea these were affordable.
>
> Thanks
> Lee
>
> On Sun, June 17, 2018 18:16, Pat Horne wrote:
>> Might this work? Haven't studied it.
>> https://ebay.to/2HWvjWB
>>
>> Peace,
>> Pat
>>
>> Pat Horne
>> We support Caldwell County Habitat for Humanity
>>
>> On Jun 17, 2018, at 5:46 PM, Lee Daniels <lee at automate-it.com> wrote:
>>
>> I've got a line on a free Whirlpool model RBS305PDQ4 oven. The electronic
>> panel on the front doesn't work (turns on, but intermittent control of the
>> touch controls). I searched the usual repair parts places, and the  
>> consistent
>> answer is "this part is no longer produced, unavailable - buy a new oven".
>>
>> As this is for powder-coating, all I really want to do is heat it up to 350
>> deg. Can I hot-wire this with a on-off switch and some kind of basic
>> thermostat? Any ideas? thanks Lee
>> _______________________________________________



Links:
------
[1] http://a.co/hvTazTK
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