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Subject: Re: [Homebrew_PCBs] CNC mill X-Y tracks?

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2005-06-24

On Fri, 24 Jun 2005 18:05:22 +0200, uhmgawa <uhmgawa@...> wrote:

>
> Something else to keep in mind is using the XY
> setup to assist with pick/place operations for
> SMD devices. Dealing with placement of any
> significant number of 0603 or smaller components
> per board can get tedious quite quickly.


I thought about it a while ago, but haven't got time/means right now.

One of the (i think) better ideas then was to put the components in a
pickup area.
Few of us will have reels for most parts, but most will have short strips.
If you put little pins on the pickup area where the holes in the tapes
line up, that could work. You need to peel off the covering tape
beforehand.

For other components like ICs that you don't have in strips one might mill
out small indentations in a plate.
of course this would also work for smaller parts.

This would present you the components in a known position/orientatation.
All you need to do then is write a software that tells you which position
to put which strips, and increment accordingly the parts over several
boards. then you only need to somehow insert the right positions in the
pick-and-place file.

Just an idea.

ST