Speed in percentage

My reccommended settings for material I am engraving shows speed as a percentage. Lightburn uses in/sec. How do I set lightburn to a percentage or convert the measurement on my own?

Percentage of what?

Laser Instructions:
60 WATT: SPEED 25% POWER 25% 100HZ

Im not sure how to enter the speed percentage into lightburn settings when the units are in/sec

Where are you getting this recommendation? From what source? Speed should always be represented as Distance over Time. If presented as a percentage, the suggested numbers would have to have a known maximum “speed” the system is capable of, which would be 100%. Without us knowing this data, we could not help you with the conversion to what everyone else uses for a speed setting for this job.

What are you trying to cut / engrave and with what kind of laser setup are you working with?

The setting is coming from Jds supplies as their recommended settings for engraving on leatherette material. I’m using ruida machine. I will call Jds, I think this is the wrong place for this question.

The settings JDS uses pertain to running an Epilog, Universal Laser, or Trotec.

yes but not in percentage, right?

Nope. All listings I see are in percentage. Not very helpful for folks that are not aware of what 60% of the max speed of some 30watt Epilog, Universal Laser, or Trotec actually is.

It does it in percentages. Here is a JDS setting for leatherette from their website.

Laser engravers vary and adjustments may be necessary to achieve
Optimum Results:
35 watt DPI 600 Speed 60% Power 45%
60 watt DPI 600 Speed 85% Power 55%
80 watt TROTEC PPI 600 Speed 90% Power 74%

Here is how Epilog does it

:flushed: :flushed: :flushed: :flushed: :flushed: :flushed: :flushed: :flushed: :flushed: :thinking:

… on the other hand, it will not take many hours to find the appropriate settings for speed and power and once this is done, you have the settings forever in LightBurn.
I think I have occasionally a little autistic traits, that will be a task for me :wink:

You can’t. LightBurn supports a bunch of different laser systems, each with their own capabilities (speed, power, etc.). For Speed to be presented as a percentage, one has to know what 100% represents, in real terms, how far over how much time.

The numbers JDS provide are useless without knowing the top speed (expressed as Distance over Time) of the system they used when producing these recommendations.

We are wanting to help, but need a bit more info about your laser. We also need to know what you are wanting to produce and on what material. From there, we can offer some suggestions, specific to your system.

I also provide this chart that might work as a rough starting point for you: Boss Laser Laser Settings

You can also use a test file like the one below to test your settings for different materials. Once you have a setting dialed the way you want, you can save that setting into you ‘Materials Library’ for quick recall later when using that same material.

that’s correct but you can try and determine your max speed based on safety and stability considerations, this is how I did it with my lasers, but you probably will not hit the original speeds from the “factory” precisely.

Here is a good video from JDS for Leatherette silver and gold, even though the are speaking in percentages. Leatherette is tricky to get it right, especially the silver and gold. The video talks about setting the laser out of focus 0.125". Basically, do a test grid with squares like can be done for any material, and pick the one that looks the best on your laser.

if its crap from JDS, prepare to buy a box just to dial in your settings… and hope they work again next time.

I’m noticing that as soon as I think I have the settings dialed in they wont work 2 times in a row…where would you recommend getting leatherette?

I don’t think the issue being pointed out here is the product itself. It is the cut settings provided by JDS.

Building a simple test grid, based off the Boss numbers for the same wattage system you have will be the best and fastest way to dial in the settings that work best on this material based on the real-world usage of your laser.

I provided a sample test grid you could start with in the post above. After testing, tuning, and testing again, here is what building a Material Library can provide. A Material Library entry can be generated from an existing layer settings, and you can then quickly ‘Assigned’ these settings to an existing layer with one click.

I am showing the Library pulled out for viewing more of the window. But, for my personal daily use, I have the Material Library docked like this. Easy access and not in the way when looking at other windows.

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