Specifications

Stages in milling and drilling
52 ProtoMat 95s/II
7.4 Drilling
fig. 37: Twist drill
Caution! Make sure that the board is secured in position before
drilling. Switch on the vacuum system.
The boards must be drilled with drills designed specifically for boards. It
is important that the head always lowers at a constant speed. This
setting may be made with two setting nuts in the pneumatic block on the
plotter head.
Lowering the head too quickly may result in burring, particularly with
holes of small diameter. We therefore recommend that you punch holes
with a small diameter before drilling. The
MARKINGDRILLS
phase in
BoardMaster
is intended for this purpose and uses a special universal
milling cutter, the
UNIVERSAL CUTTER 0,2 MM FOR MARKING
.
Only one PCB can be drilled at a time. It is not possible to stack PCBs
one on top of the other. No drill cover plate is needed.
All drills are 38 mm long.
See the section „Practical tips“ on page 62 for further instructions.
7.5 Isolation milling
fig. 38: LPKF Universal (1), Micro
(2) and RF cutters (3)