19:58

Triangulation - Square to Round, paper layout

25:33

Various Sheet Metal Seams and Locks

23:31

Triangulation - Drop Cheek Elbow, fabrication

16:51

Basic square to round triangulation

17:47

Square to round w/ DM35

21:15

RECTANGLE TO ROUND. SHOE TYPE, OFFSET

17:51

Square to round

13:34

Our New Sheet Metal Tool Invention and Process! Make Plenums, End Caps, Without S-Lock!