Vision 2448 User Manual download pdf (Page 18)

Page18

Chapter 4

Zeroing Cutters for Top-Loaded Spindles (see figure 4.1)

1. Turn the micrometer to zero. This provides a starting point and reference for setting the

depth accurately. It’s important to note that the micrometer should be threaded onto the

spindle housing sufficiently to prevent excessive play in the micrometer and nosecone. If

there are too few threads holding the micrometer in place it will move during the engraving

process. The best starting position is 3 or 4 complete revolutions from the top.

CAUTION: When you loosen the setscrew in this step, the cutter may easily fall out

of the spindle and can cause cutter tip damage. Use one hand to hold the cutter

before loosening.

2. With the appropriate cutter installed in the spindle, loosen the setscrew in the brass

cutter knob with a spline wrench (commonly referred to as the cutter wrench).

3. Gently place a piece of metal (brass preferred) against the nosecone so as to push the

cutter even with the bottom of the nosecone. Now the cutter should be flush with the

nosecone. Retighten the cutter knob setscrew. Your cutter is now zeroed. Rotating the

micrometer clockwise will adjust the depth of the cut. Each click of the micrometer =

.001”. A full revolution is .025”.

Zeroing Cutters for Top-and-Bottom-Loaded Collet Spindles (see figure 4.2)

The collet spindle can be used for either top loaded or bottom loaded cutters. To install a top

loaded cutter in the collet spindle, first set the micrometer to zero. Loosen the knurled draw bar

on the very top of the spindle slightly. Remove the cutter knob from the cutter, and slide the

cutter into the spindle. Place a piece of flat material against the bottom of the nosecone and

lower the cutter until it rests against the material. Tighten the draw

bar around the cutter, make sure it is tight. Then reattach the cutter

knob to the top of the cutter and screw it in counterclockwise until

secure. Be careful screwing the cutter knob in, as counterclockwise is

the direction to unscrew the draw bar (see fig 4.3). Never use pliers!

The cutter depth can be adjusted by turning the micrometer counter

clockwise. Note: If using 2" short cutters, install them from the

bottom. Use the draw bar on the very top of the spindle to tightly

secure the cutter.

A solid collet, if purchased, can be installed in place of the split collet

for burnishing. Install the collet in the bottom of the spindle and

tighten the draw bar firmly. The spindle now acts as a normal top

loaded spindle for ease of operation. The split collet can be

reinstalled when required.

(Figure 4.3) Tightening the cutter

knob in the draw bar.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 43 44

No comments

Vision 2448 User Manual Page 18