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Re: [Homebrew_PCBs] Re: solder paste - cnc dispenser - times to boards

2004-04-25 by Stefan Trethan

thanks Dave.....

i don't like the "couple of weeks" part,
an the "fast programmer".

i could of course edit the librarys so that there is a short line on the 
place
where the paste has to go. one could use multiple lines, and vary the 
lengt to change amount.

I still don't get the part where it moved from a 2d excellon drill file or 
gerber file
to a 3d cnc file, where and how do i add the drill depth, feed speed, etc?

Is there a really simple solution to modify these "z axis" action to get a 
dispenser
to "mill the paste above the pad"?
I mean imagine you have a 2d drawing of a part you want to mill, how do 
you add the
z axis? how do you tell how fast the dispenser goes down, and how far it 
moves?

Maybe the "pump paste now" could be hardware engaged - whenever the nozzle 
is down fire up..
one could use adjustable delays and "suck back" as soon as the nozzle is 
raised.

ST

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