<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><style> body { font-family: "Calibri","Slate Pro",sans-serif,"sans-serif"; color:#262626 }</style> </head> <body lang="en-GB"><div>Dear TLUD Cookers</div><div><br></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif">This is a top view of the cooking space on the Tajiki TLUD. The large circle is 2.7mm mild steel sheet and the hole is made with a plasma cutter. The diameter of the hole is such that the top edge of the rather thick walled body serves as a holder for the cut-out. </font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif"><br></font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif">This deletes the usual ring that normally has to be cut separately and welded under the outside diameter. </font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif"><br></font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif">Using a plasma (in this case one with a fairly wide kerf - 1.6mm) means the cutout can be used if the hole diameter is pushed out pretty much to the limit. It sits on top of the pipe just enough to weld it on (the welding heated the inner edge and discoloured it). </font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif"><br></font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif">The cutout thus cannot fall into the pipe even though it is 3.2 mm smaller than the hole. The main combustion action is directly under the plate so it gets pretty hot: >400 C on the upper surface. If a cast iron disk were used it would last longer. </font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif"><br></font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif">Regards </font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif">Crispin in Urumqi</font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif"><br></font></div><div><font face="Calibri, Slate Pro, sans-serif, sans-serif"><br></font></div></body></html>