iCNC PERFORMANCE
Manual 0-5399 NESTING 5-27
Leadin and Leadout types:
Nothing No leadin or leadout. This type has a special purpose, if you generate
CNC code for old ProMotion controllers. If there is no leadin, then
the controller adds one.
Straight A straight line which has the same direction as the first (or the last)
element of a profile.
90 degrees A straight line which is on 90 degrees angle (on the kerf side)
compared to the first (or the last) element of a profile.
Arc An arc which has a 90 degrees central angle. Connects the first (or
the last) element of a profile tangentially.
0-179 degrees A straight line which is on 1 to 179 degrees angle (on the kerf side)
compared to the first (or the last) element of a profile.
J A leadin that contains a straight and an arc. Straight section always
points to the center of the hole. Restirctions are arc radius cannot
be smaller than ½ of kerf, length needs to be bigger than arc radius.
Semi circle A half circle. Connects the first (or the last) element of a profile
tangentially.
Custom This is a user defined type read from a file. ESSI- and EIA-programs
often has this kind of leadins (or leadouts). You cannot add this
kind of leadins.
Leadin / Leadout selection:
To add, remove or modify leadins, click on the pierce point or select “Target”, check box “Replace existing leadins” and click “Add”.
Length:
Length of the leadin (straights).
Radius:
Radius of the leadin (arcs).
Angle:
Angle of the leadin (Free angle).
Kerf:
Selected process kerf.
Overburn length:
Overburn means that when the machine has cut around a profile, it starts to cut the profile again (it goes for a next round) and cuts it
some length. That length is defined here. Just enter the value to the text box and click at the pierce point or select target and click “Add”.
Target:
Select the type of profiles where you you want to modify leadins/outs.
Replace existing leadins:
Check this option, if you want to change existing leadins or leadouts. Otherwise you can only add new leadins (or leadouts) to profiles,
which has no leadins (or leadouts).
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