Hello there, i have a few question about my forge, i have previously made a coal forge out of a brake drum, with little success, i believe part of my problem is there is not enough space for my coal, and my work piece sits at an angle into to the fire and I believe my air flow is getting clogged. What should i use to input airflow, but not allow my coal to fall threw? I am retro fitting an old forge I picked up for pretty cheap! I will post pictures of my forge i made, and my new one. I just need some ideas on what I should do right underneath my coal for airflow. What do you guys do??