Changing the cut powerscale

[GeneMpls (Gene Uselman)]

LB9.09, Win 7pro.

I am attempting to change the engrave/cut test to suit my machine which the max safe power is 45%.
I copied an existing line of the test grid and set my max to 45/45% and changed the Powerscale setting in the Shape Properties to the proper percentage to use the powers I want tested. I watched the youtube video explaining the Powerscale function and saw no special setting to enable it- but all my blocks cut at 45% on the laser panel and all cut thru the plywood at all power settings. How do I enable the Powerscale please. Thanks Gene

[Rick (Technical Evangelist)]

We would need to see the ‘Shape Properties’ tab to see what you have set for each rectangle shape to offer direct feedback for this file.

Take a look at this post for a working example file (adjust for your setup and needs) you could use to compare with your own.

Material Cut/Scan Test Files - Power Scale

UPDATE LightBurn now has a very powerful material testing tool built right in! Find it in the top bar menu under ‘Laser Tools > Material Test Generator’ Please check out our documentation for a full run down on all the features: Material Test - LightBurn Software Documentation [image] If you’re here specifically looking for the manual material test files and instructions, click the arrow below.

Expand this section to see manual material test files

Here is a test file created using the ‘Arra…

[Rick (Technical Evangelist)]

Looking closer at your settings, you said Min AND Max are set the same. That is the issue. Power Scale requires a range to work within. You will need to set a spread between Min and Max for this to work properly. It’s similar to using “Direct Output” in RDWorks with a bitmap - LightBurn uses the same commands to vary the power from min to max, using the Power Scale value as the control.

I also see your speed set for 10mm/s. Just as an FYI, Min power is used when your laser is traveling at or below its ‘Start Speed’ (on Ruida, this is usually 10mm/sec, but it is a parameter you can change).

[GeneMpls (Gene Uselman)]

Good info- thanks Rick