I have been making puck shaped muffler out of small aluminum gas cylinders flat stock and weed wacker handles. I copied it from the type that are sold for Ryobi conversions. The flat stock disk is lathe turned to put a shoulder that a single drawbolt in the center holds in place. Imagine a tuna can with bolt though the center of the circle. The piupe ids usually stuck in radially. That all looks great and works on the ground. When I fly it gets hot enough then the pipe falls off sue to the solder melting.

So, how much do welders charge to TIG a bead around a pipe? ...ballpark.

Next idea is to braze up steel tubing an use the Briggs and stratton type cigar mufflers. Somone sells something that looks simmilar and they call them sunfflers. This option has me worried about the extra weight hung from the jug screws. If I did a pits style that would be a lot of weight far from the jug screws. I imagine that between the vibration and G-forces it might not end well.

Anyone have any neat ideas on homemade no tig buffler options? I am fixing to fly my BME 50 clone.