Specifications

Stages in milling and drilling
ProtoMat 95s/II 59
7.12 Cleaning the PCB
Before components are mounted, the finished PCB must be thoroughly
cleaned. This can be done manually or in a board brushing machine.
If cleaning by hand, the PCB is placed on a flat support.
› Brush the board with a wet board cleaner (such as the LPKF PAD
board cleaner) in the preferred direction of the conductor paths.
The point of brushing is, firstly, to remove the layer of oxidation, and,
secondly, to remove any burrs resulting from the use of a blunt tool.
After brushing, the PCB must be free of any metal particles.
From now on, the board should only be held by its edges or with gloves.
It is best to rinse off the board under running hot water to remove any
brushings from the isolation channels.
› Now dry the board with an air drier.
› After drying the board, coat it on both sides with soldering varnish.
Caution! Never use compressed air to blow out the channels as any
oil particles in the air introduced by a faulty oil separator can cause
problems later in the manufacturing process.
7.13 Tutorial on creating a printed circuit board
It is assumed that the relevant milling data has already been loaded or
prepared in
BoardMaster
. For example, the data from the
CircuitCAM
tutorial can be used.
A further requirement is that the HOME position has been programmed
exactly as described above.
A tool list must be defined and the tool magazine must be filled
according to this list.
Danger! Take care when handling the tools. Danger of cutting. Do
not forget to switch on the vacuum system during machining.
› Move to the Pause position using the
BoardMaster
menu (
GO TO
,
PAUSE
).
› Secure the base material with alignment pins as described in the
section „Securing the PCB on the machine bed“ on page 47.