Data Sheet

LABCENTER ELECTRONICS LTD.
156
removing the keepout. You’ll need to either switch to Selection Mode or to change the selection
filter such that you can select 2D Graphics
Deleting a Keepout area
While we are here, we might as well move across and repeat the process by deleting with the
other keepout around the crystal.
Returning to U3, we now need to outline the cutout region. In the PCB this is a two stage
process; we need to place graphics appropriately on a mechanical layer and then designate the
mechanical layer as the slotting layer when we generate output for manufacture.
Select the 2D Graphics Line icon, change the layer selector to be MECH1 and then place three
lines to form a ‘U’ shaped cutout.
Placing a slot on MECH 1
Finally, we can thicken these three lines to something more appropriate as follows:
Enter selection mode, hold the CTRL button down on the keypad and left click once on each
line. This will select all three lines
Selected items are white