Something wrong with cut

[chris7 (Chris Roberson)]

I have been trying to cut through 1/4" wood on the settings I have used with RD Works. I tried changing several settings (speed and power) but it would not cut through. Out of frustration I tried the same program on RD Works and it cut just fine. What am I missing? My controller is a Ruida

[LightBurn (Oz)]

Did you only set Max Power? Or both Min and Max power? That’s probably the single most common mistake.

[chris7 (Chris Roberson)]

Yes I did set both the Min and Max power.

[Rick (Technical Evangelist)]

@chris7

Yes I did set both

To what?

These are worth review:

Help with Cut settings

From: RDWorks Wiki - Min/Max Power (cutting) As well as the Min and Max power settings and the speed set for the layer, the Start Speed found in the Cut parameters section of the User Settings comes into consideration. At speeds of Start Speed and below, only the Min power is used. Above the Start Speed, the power is increased linearly until the Max power is acheived at the layer speed. When using layer speeds at or below the Start Speed, there is often confusion if the Min and Max po…

Confused about best approach to min power setting

On a Ruida controller (for example) the power curve representing how min and max power function relative to speed, if it were drawn, might look something like this: [image] What is important to note about this is the configuration of the controller allows for setting the start speeds (either for Line Layers or for Fill / Engrave layers). The start speed is speed at which Min Power value is used on a layer. Any movement on a layer at or below the configured Start Speed Parameter in the contr…

[chris7 (Chris Roberson)]

So are you saying I need to adjust the Start Speed? If so, what is a good number to input or start with here and where do I find this screen to set it?

[Rick (Technical Evangelist)]

This is already set as part of the controller configuration. You can view (and edit) these setting under ‘Edit’→’Machine Settings’.

What do you have set for both the Min and Max power for that ‘Line’ layer in LightBurn?

For cutting, you can set both to the same as your max power. This way, there is no ramping to the power as speed adjusts for direction change.