Re: Spring loaded engraving tool

jeff.birt
 

>>I assume when you say "mils" you are referring to metric mils?
>>Or are you making the common mistake of calling a thou a mil?

It is not a mistake, a ‘mil’ is a thousandths of something, so ‘mil’ can be used quite correctly when referring to a thousandth of an inch. http://en.wikipedia.org/wiki/Thousandth_of_an_inch

 

In PCB parlance the term ‘mil’ meaning 0.001”  is also quite common.

 

Jeff Birt

Soigeneirs.com

 

From: pcb-gcode@... [mailto:pcb-gcode@...]
Sent: Friday, July 04, 2014 8:06 PM
To: pcb-gcode@...
Subject: [pcb-gcode] Re: Spring loaded engraving tool

 

 

Thanks Paul:

 

That's the kind of feedback I was looking for since I've only ever tried milling a board once and I had pretty good relults.

 I can agree that if your machine Z axis is accurate and repeatable (no backlash etc) and you have a good hold down process (like a vacuum table) then you probably don't need the auto leveling software. I figure it's much like using backlash compensation for milling. It doesn't really work very well and is no replacement for a good machine - it's a crutch if you will.

 

BTW

 

I assume when you say "mils" you are referring to metric mils? Or are you making the common mistake of calling a thou a mil?

 

Sage

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