tailieunhanh - Gas Burners for Forges Furnaces and kilns phần 7

Sử dụng các cạnh của vỏ như là một phần còn lại ổn định cho lưỡi dao và cắt thẳng vào cuối chăn. Sử dụng các dải mỏng được lấy ra để công cụ giữa các ổ ghi và cổ áo trước khi hạ thấp máy giặt bằng phẳng thành cắt cuối cùng được thực hiện cũng tương tự như phía dưới là ngoại trừ cho các cổng xả. | Gas Burners 9 26 3 16-inch round bar 3-inch long six inches of light chain 27 Vaseline or petroleum jelly 28 Bag of Perlite about one-half of a cubic foot Tool list A Electric hand drill along with a 1 8-inch drill bit a 5 16-inch bit a 7 bit a 21 a 3 16-inch a 3 8-inch drill bit twoll 64-inch drill bits a 2-inch hole saw see Step 3 metal cutting countersink 3 B 4 1 2-inch right angle grinder with thin cutting discs a 60-grit flap disc two 24-grit flap discs C Saber saw with steel cutting blades 4 D Welding machine helpful E 6-foot tape measure 12-inch dividers 12-inch square ink marker scribe. F Locking pliers or Vise-Grips G Two disposable 1-inch paintbrushes H Small center punch or prick punch I Safety glasses J Plastic level K Scribe L 1 2 X 1 2-inch angle about 6-inches long M 10-inch half round file 1. Laying out the tank ends Prepare the tank using the instructions in Chapter 5 Step 1. With its foot-ring sitting upon a flat surface mark a line all the way around the tank s periphery about 1-inch up from its curve. Use a block of wood to support the ink marker at the right height. Center punch the line to preserve it during the cooking and sanding of the paint. This is for the standard lid. Mark the line at about 4-inch up from its curve to get the lowered lid version shown in the opening drawing. The standard lid is easiest to build while the lowered lid gives maximum access to small crucibles. Now follow the instructions in Chapter 5 Steps 2 through 4 in order to lay out an 8-inch circle on the other end. But instead of laying out a six-inch long flat line use the dividers to find and scribe four equidistant places on the circle and punch mark them for later drilling. Then fill the tank with water up to the beginning of the curved end and screw in the 1-inch pipe plug. 2. Cutting the exhaust opening Prop up the tank on this end and stabilize it to keep it from shifting during grinding. Follow the instructions in Chapter 5 Step 5 to find the other end s .