Re: Slots/elongated holes

Wilfred Swinkels <wswinkels1@...>
 

Jj did you come to fixing the arc/ circle bug? Im making a ringlight
for asml and i cant see the ring in the milling layer my version
number is
3624
Thanks
Wilfred


Send from the Millenium Falcon

Op 29 mei 2014 om 00:31 heeft "John Johnson john6060842@... [pcb-gcode]" <pcb-gcode@...> het volgende geschreven:

Just turn on the checkbox :-)

On the Generation Options tab, turn on Generate milling and set the Depth
parameter next to it to go slightly deeper than the board.
When I lay out boards, I set the wire/line size to the same size as the
milling tool I'll be using. This shows you the width of the cut when you
are laying out the lines on the Milling (46) layer. (See the second picture
attached. Wires/lines on the milling layer are cyan. The width of the line
is 0.0625", the same as the bit I used to mill the boards out.)
Anywhere you put a wire/line, pcb-gcode will generate gcode for, whether it
is the perimeter or within the board. I left a gap in the wires/lines for
the boards in the attached picture to hold them in place until drilling was
finished.
This is only mentioned in passing in the manual, so I need to add a section
on it.

Regards,
JJ

[image: Inline image 1]
[image: Inline image 3]


On Wed, May 28, 2014 at 6:00 PM, brc_q@... [pcb-gcode] <
pcb-gcode@...> wrote:



I have run into a situation where rather than a round hole through the PCB
for a component I would
like to have an elongated hole or slot. I haven't found another way of
doing this other than using
a different CAD program to create these slots but when paneling this makes
a real convoluted issue
making sure the slots are aligned with the pads properly.
So I was wondering what everyone else is doing to make these slots or even
milling the outline and
providing breakaway tabs?
I have CamBam for general 2D milling plus I use PCB-Gcode to engrave the
PCB but as great as PCB-Gcode is it does have it's limitations as far as
milling holes or outlines in any shape you want or am I wrong
about this. There is a milling layer in Eagle that I use to layout the PCB
and use that layer to produce
a PCB outline (and text too) so could I make a short milling layer trace
where the thru hole would be for
a pad? How do I tell PCB-Gcode to mill thru the board say a Z depth of 70
mils?
I am just confused on how to accomplish this so was wondering how others
are doing this?
Thanks,
Bruce


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