BartVH

Hi Frosty, I haven't tested them in a forge yet. I wanted to check the burner first and do a sanity check. I'm going to build a forge next and see what happens. I started at very low pressure just out of cautiousness. However when firing the burner at higher pressure the back burning is not happening. So after the initial wondering "what I'm doing wrong", it seems I'm the right track. Now I need to move ahead and build the forge itself. Thanks again for sharing the instruction notes and comments on the forum. Bart

Hello, I've been building the T-burner according to Frosty's description (thanks !). Dimensions should be matching the building instructions. However, I've the following issue with the burner. When igniting at low pressure, there seems to be a flame close to inlet of the of 3/4 tube. You can clearly see in the following video I recorded . The burning is not running properly I assume. When increasing the pressure the flame at the inlet of the mixing tube goes away and a more stable, powerful flame is obtained. Notice the difference in sound. When igniting with a higher pressure, the backflame (if this is the correct terminology?) is not happening and the stable, powerful fame is immediately there. Is this expected ? What could be the reason for this. I'm using a 0.8mm mig tip and 0.7bar pressure (10 psi). It's placed about 3mm of the center line toward the gas inlet side where the mig tip is placed. I understood from Frosty's building instructions this was the way to go. Looking at other video's I notice that these guys have placed the mig tip more towards the 3/4 pipe . Could this explain this behavior ? I the 3/4 to 1 inch transition does in fact help which is a contradiction to what I understood from the building notes... ? Any other comments on the flame itself. This is my first burner, so it's all new to me...