AVR-Chat

Troops,

Don't want to seem overly self righteous but if you are going to ship these to 
paying customers I would look a bit more at quality control and a bit less at 
what you can get away with. Teensie bit more measurement & process stability, 
lots more consistency in deliverables. Many more happy customer chappies. Lots 
more predictability in food on the table.

Speaking of righteous, anyone seen the eye on larry at the moment?  925 & 
falling, spent the day shifting pot plants & everything else outdoors.

http://www.theweatherchaser.com/maps/index.html?lat=-17.476432197195518&lon=149.17236328125&zoom=10&lid=106

Happily I am now on the outer edge of it ( breathes out & relaxes )

Cheers

Don


Kathy Quinlan wrote:
> 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 ;)
> 
> 


-- 
Cheers

Don Ingram


Leading Edge Design

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