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Mach SDK plugin questions and answers. / Re: Impact engraving plugin
« on: May 07, 2011, 07:42:30 AM »
Hi Stitos,
I think we are going round in circles on this and perhaps ending up just where we started.
This is not quite true because the images that we use have individual pixels which could be 1 bit but are more usually 8 bits per pixel. The plugin has to resolve each pixel into a stream of single bits (laser on/off) with relation to time (distance travelled).
This is not quite true because each single bit (laser on / off transition) is related to time and distance travelled so the working speed has a profound effect. Time x Distance = Speed.
You have already established that if you slow the speed down the laser does not fire.
The dynamics of the plugin are related to laser characteristics which are :- 'more depth of cut at either higher power or lower speed' and 'less depth of cut at either lower power or higher speed'. Only Art knows exactly how his mathematical calculations achieved this but it is darn clever because it works.
With my use of the plugin I am only able to resolve 5 variations (3 shades of Gray plus Black and White) from any given 8 bit pixel, not sure exactly why this is but the end results are acceptable so I am happy.
Tweakie.
I think we are going round in circles on this and perhaps ending up just where we started.
Quote
The mode of operation of this plugin is through the pixels of an image? A pixel is a bit.
1 bits white----- laser ON
1 bits black ------ laser OFF
This is not quite true because the images that we use have individual pixels which could be 1 bit but are more usually 8 bits per pixel. The plugin has to resolve each pixel into a stream of single bits (laser on/off) with relation to time (distance travelled).
Quote
The working speed has no effect?
This is not quite true because each single bit (laser on / off transition) is related to time and distance travelled so the working speed has a profound effect. Time x Distance = Speed.
You have already established that if you slow the speed down the laser does not fire.
And I tried it and it goes well, I see strange is that when I very low speed (30cm/min) will not turn on the laser. "Should be activated at any speed?
The dynamics of the plugin are related to laser characteristics which are :- 'more depth of cut at either higher power or lower speed' and 'less depth of cut at either lower power or higher speed'. Only Art knows exactly how his mathematical calculations achieved this but it is darn clever because it works.
With my use of the plugin I am only able to resolve 5 variations (3 shades of Gray plus Black and White) from any given 8 bit pixel, not sure exactly why this is but the end results are acceptable so I am happy.
Tweakie.
