Rolling Arcs - Grizzly G0792 Owner's Manual

Rolling Arcs

The Model G0792 Ring Roll Pipe Bender can be
used to create arcs, circles, and spirals by feed-
ing the pipe back and forth through the machine
with incrementally greater force exerted with each
pass by the upper roller until the desired arc or
bending amount is achieved.
The machine is capable of bending with the head-
stock in either a vertical or horizontal position.
Typically, the horizontal position is only needed
when bending extra long workpieces which could
create a space constraint in the vertical position.
Note: During the following steps, the directions
"left" and "right" refer to left and right as viewed
when facing the front of the machine.
Rolling an Arc in Vertical Position
1.
DISCONNECT MACHINE FROM POWER!
2.
Use crank handle to raise upper roller, then
place workpiece on lower rollers (see Figure
13).
Upper
Roller
Lower Rollers
Workpiece
Figure 13. Workpiece placed on lower rollers in
preparation for bending.
-18-
3.
Figure 14. Upper roller lowered onto workpiece.
4.
5.
Feed Left
Crank
Handle
Feed Right
Figure 15. Foot controls for moving workpiece
Figure 16. Example of first bending pass.
Move upper roller down until it just touches
workpiece, as shown in Figure 14, then con-
nect machine to power.
Tighten crank handle an additional
Note: The amount of additional tightening
varies depending on the strength of your
workpiece material. Therefore, it is a good
idea to first perform a test bend on a piece
of scrap material to get a feel for how much
force to exert when tightening.
Use foot pedal controls (see Figure 15) to
move workpiece to left or right to create a
slight bend in your workpiece (see Figure 16).
left and right through headstock.
Model G0792 (Mfd. Since 12/15)
⁄ – ⁄ turn.
1 1
4 2