Formax FD 2092 - Manual (Page 19)

Roller Caliper Set Up
Adjustable calipers are used on the folder to obtain
clean crisp folds on a variety of stock (Fig 28). The
proper amount of paper strips (of the same material
being folded) in each caliper on both sides of the
folder will give the best grip for a good fold. As the
paper is folded, the thickness of the paper passing
between the rollers increases. The number of paper
strips placed in the calipers should be equal to the
minimum thickness of the paper passing between the
rollers (tail end of the sheet).
To provide the proper clearance between rollers,
¾” wide paper strips are inserted into the calipers.
Simply press the caliper lever and insert the correct
number of strips into the open gap. Put the same
number of strips into both sides of the folder. Do not
use folded or torn strips of paper (they may give false
readings).
Illustration 4 diagrams the position of rollers, fold
plates, feed table, calipers and the correct number
of paper strips to be placed into the calipers for a
common “Z” fold.
Coarse adjustments are made by loosening the lock
screws on the plate stops, then moving the stop (Fig.
26). The plate stop lines up with the scale marks
along its front edge (not where the paper contacts
the stop). Fine adjustments are made with the micro
adjust knobs on the ends of the fold plates (Fig 27).
Roller Calipers
17
Fig 33
Fig 34
Roller Caliper Quick Set Up Guide
The chart below gives the set ups for calipers for several
common folds.
Fold Type # 1 Caliper # 2 Caliper # 3 Caliper
Letter “C” 1 1 3
“Z” 1 1 3
Half 1 2 2
Double Parallel 1 2 4
Uneven “Z” 1 1 3
Uneven “C” 1 1 3