Omtech 100W co2 laser
issue 1 is if I set the speed to anything above 300 it never goes over 300 on the laser controller screen.
issue 2 is my laser will never cut on with anything lower than 10% power
are these controller issues or Lightburn issues? I have my max speed on the controller set to 600, laser is set at max 85%and min 2%.
I’ll assume you’re new to CO2 lasers and DSP controllers.
You’re likely being limited by the maximum speed setting set in the controller. 300mm/s is a common maximum speed setting.
This is inherent to how CO2 tubes work. There’s a minimum power required before lasing will occur. Typically, the higher the tube wattage the higher the minimum power required. This is one reason why higher powered tubes don’t work as well for engraving that requires a more subtle touch.
yeah that makes sense on the laser power issue. the 300mm/s is what I’m still confused about as I believe the book said 600mm/s. I’ll have to check on that tomorrow. Thanks for help
Go through Edit->Machine Settings. There should be a section of Axis parameters. Check the Maximum speed values for X and Y. Y will likely be lower than X. X is likely to be 300 mm/s.
Based on knowledge and belief:
Any printed documentation accompanying a machine applies to some other machine than the one you bought. If, by some mischance, it seems to apply to your machine, the specs are for a previous version built with entirely different and likely more expensive parts.
Where the doc says “up to 600 mm/s”, that’s the speed of the laser head when traveling along the 45° diagonal of a big square with both axes running flat out at 420 mm/s, because Pythagoras fights on the side of the best ad writers.
You say your axes can’t reach 420 mm/s? Refer to item 1.
I wish I was making that up … 
Well played, Sir!
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