AVR-Chat

Ned Konz wrote:
> On Mar 18, 2006, at 8:41 PM, Kathy Quinlan wrote:
> 
> 
>>Hi all,
>>
>>Well I have to make 100 units (and pot them in Epoxy Resin) of an  
>>octopus lure
>>I designed for a proto run.
>>
>>I am now thinking SERIOUSLY about building my SMD oven (as it is  
>>mainly SMD
>>only 4 through hole solder connections and 2 through hole non solder
>>connections (fishing line to hold the lure in the pot))
>>
>>I also have a lot of "other" projects including a run of 200 units  
>>for my
>>speed alarm unit for the Au Targa Rallys.
>>
>>So I need a circuit for Type K to AVR. I know there was a design  
>>note in the
>>Atmel applications Journal, unfortunately the WRONG schematic was  
>>placed in
>>there :(
> 
> 
> SparkFun Electronics went through this process themselves, as did I.
> 
> I found that the toaster ovens were a bit slow, but if you doubled up  
> the elements (i.e. buy 2 ovens, parallel elements) it helped.
> 
> You can use an AD595 thermocouple amplifier if you want.
> 
> Here's Sparkfun's schematic of their toaster oven controller:
> 
> http://www.sparkfun.com/datasheets/Tools/Reflow-Toaster-v2-Schematic.pdf
> 
> Sparkfun decided that an electric skillet was even better:
> http://www.sparkfun.com/tutorial/ReflowToaster/reflow-hotplate.htm

AAARRGGGHHH Another choice ;)

I actually think this may be the best Idea, as one of the problems was the 
sides burning arms, I can hack the sides off with the dremal (best tool in an 
Electronics Butcher.. I mean Engineers Tool Case ;)

But still has a problem with uniform heating.....

hmmm I wonder what would happen if I got a steel plate ~10mm thick, gave it 4 
ceramic feet and ran a long element under it with parallel lines and about 
10mm Center to center on the element, I only need a heating plate of 300x 200mm

Hmmm what can I come up with...

Gas would be good also, maybe a new plate for the BBQ just for PCB's...

So many crazy thoughs so little time to play ;)


-- 
Regards,

Kat.
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