Model G0792 (Mfd. Since 12/15)
-21-
Rolling a Continuous Coil
To roll a coil shape (see
Figure 24) you first must
roll as close to a complete circle as possible, then
introduce a slight twist to the arc, allowing the
bend to continue beyond a complete circle.
4. Tighten adjustment bolt an additional
1
⁄
4
–1
turn, depending on strength of workpiece and
desired bend, then lock in place by tightening
retaining nut from
Step 2.
5. Use foot controls to advance workpiece
through headstock. Position of guide roller
will produce a slight twist in workpiece.
6. When you reach end of bend, release foot
pedal to stop motor.
— If you require more twist in your com-
pound arc, use foot controls to reverse
workpiece to beginning of bend, then
repeat
Steps 2–6 on same side. Repeat
until you achieve your desired bend.
Note: Due to differences in workpiece mate-
rials and achievable shapes, you will likely
need to experiment with a combination of
adjustments to get the results you want. This
includes rotating the lower adjustment bolt
(see
Figure 23).
Upper
Adjustment
Bolt
Lower
Adjustment
Bolt
Workpiece
Bent Laterally
by Guide Roller
Retaining
Nut
Figure 23. Location of compound bending
components (side view).
2. Loosen upper guide retaining nut on outgoing
side of headstock (see
Figure 23).
3. Rotate upper guide adjustment bolt to
push guide roller against workpiece (see
Figure 23).
Figure 24. Example of achievable coil shape.
To roll a continuous coil:
1. Follow instructions for rolling an arc (see
Rolling an Arc, beginning on Page 18) until
your workpiece is as close to a complete
circle as your operation allows.
2. Adjust guide roller on outgoing side of head-
stock to introduce a slight twist in your
workpiece (see
Figure 23 and Steps 2–4 of
Rolling Compound Arc).
3. Use foot controls to advance workpiece as
far as operation will allow, then release foot
pedal to stop motor.
— If more twist is required, reverse workpiece
to beginning of bend and repeat
Steps
2–3 on same side until achieving desired
results.
Summary of Contents for G0792
Page 44: ......
