Getting dizzy cutting circles!

[irving2008]

I don't have Mach3 installed anywhere, but downloaded it into an XML editor and can immediately see why the pulse width setting would be an issue. This is a classic case of bad design in XML. An XML document should be absolute and the units defined...

If I wrote a document that contained this snippet:

<price>100</price>

and another that said

<price>145</price>

what would you surmise?

But if i wrote

<priceGBP>100</priceGBP>

and

<priceUSD>145</priceUSD>

you'd get it and it would work anywhere...

Even better would be...

 
<price>
  <amount>100</amount>
  <currency>GBP</currency>
</price>

In the file you sent the 'pulsewidth' is 19551... but 19551 of what??? and thats the issue... probably relates to machine clock speed or something... which would explain the issue Steve saw...

Incidentally there is no node whose name suggests anything meaningful as regards incremental or absolute arcs, which makes me wonder if its in the file as a default at all until someone changes it, then gets saved as a preference. Maybe the default setting is whatever happens to be in memory at the time the program is first loaded?

[John S]

In the file you sent the 'pulsewidth' is 19551... but 19551 of what??? and thats the issue... probably relates to machine clock speed or something... which would explain the issue Steve saw...

Incidentally there is no node whose name suggests anything meaningful as regards incremental or absolute arcs, which makes me wonder if its in the file as a default at all until someone changes it, then gets saved as a preference. Maybe the default setting is whatever happens to be in memory at the time the program is first loaded?

Probably clock speed which is why it varies.

When the program is down loaded it defaults to absolute, why I have no idea given that most people use incremental but this is why there is all the confusion over what has been dubbed 'crop circles'

However if you change your post processor to have G91.1 in the startup line, every post you make will force the program to default to incremental and you never see crop circles.

.