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Haha eagle eye indeed! Yes it is double walled. I designed this to roast 1kg of green beans, unfortunately the heat capacity just isn't enough, hence the double layers. It does improve a little but given another chance, I would try to find a reasonably thick stainless steel over the double walled.
Whiteboard Study Table - Ik...View Instructable »
Looks like you are doing quite well. Machine taking shape yet?
Yes that is why I am already planning my next build. All stainless steel, but I might keep my current traffic cone, looks cool!
You are welcome! My only issue is I don't have the ability and tools to cut stainless steel and perform stainless steel wielding. I am planning send some of my next design to a CNC shop and get them CNC out or lazer cut. I don't really know much about Khaldi Fortis but if you have a mesh between flames and drum, might be useful in catching chaff dropping down.
How to Build a Traditional ...View Instructable »