CORRESPONDENCE COURSE IN TUBE BENDING
LESSON FOUR — THE FIVE PRACTICE BENDS
FOR THE PERSONAL USE OF — V. LEONHARDT, ENROLLED NO. 4471
BEND 1 — ARCH
Heat a width and not a point. Roll the tube the whole time it is in the fire.
Puff the hose while the bend sets. Lay the piece face‑down on the chalk and look at it flat.