Electronics > Beginners
Homebrew soldering iron.
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Cliff Matthews:
Pyropel must be expensive stuff.. any chance of getting this in the ops home country? (YouTube shows India)
https://www.foundryservice.com/product/pyropel-rigid-and-flexible-600of-polyimide-fiber-insulating-boards-felts/
joeqsmith:

--- Quote from: Cliff Matthews on January 19, 2019, 01:22:56 am ---Pyropel must be expensive stuff.. any chance of getting this in the ops home country? (YouTube shows India)
https://www.foundryservice.com/product/pyropel-rigid-and-flexible-600of-polyimide-fiber-insulating-boards-felts/

--- End quote ---

It's not good enough really for this application.  They really need to hunt down something rated for higher temps that is available to them. 

Standoff soldered in the end of a 25-06.  A 35 Remington soldered to the backside for length.   I like Beringer and keep a few corks on hand.   Time to try some UNI-T soldering.....
joeqsmith:
The next step would be to close the loop.  For a simple test, I could use the PC with Labview to run a simple PI control.   

Bottom line, it's not something I would recommend spending time with.  My hobby iron is not real high end.  As I mentioned, it's almost 15 years old.  Still has all the original parts.  It sees a fair bit of use.   Figure what I paid for it all those years ago, cost per year ownership is way less than what people would spend on coffee or the pub.   I solder enough that I want a decent iron and this crude device will need more time put into it just to get it usable. 

First time trying it, running open loop with a constant current source (bench supply).   

https://youtu.be/7XXhsVnH6sE
joeqsmith:
Looks like YT is still crunching it for the higher res...   Maybe wait a while.
joeqsmith:
Ceramic fiber seems like a better choice.   I use something like this on my race bike for the exhaust and it would easily take these temperatures.   

https://www.ebay.com/itm/Fiber-Blanket-High-Temperature-Insulation-Refractory-Fireproof-Cotton-Blanket-US-/173719479418
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