how do I change the settings for max speed to match the Ikier k1pro 900 mm/sec it does not seem like im getting enough speed out of it
How fast is it now and what have you tested so far?
They claim “Engraving speed: Super Fast 800mm/s”, which means it will reach that speed only in the middle part of a very long straight motion.
Smaller straight-line motions, like the ones in typical vector designs, will be much slower, because the machine cannot accelerate hard enough.
Whether the beam will produce useful results at extremely high speeds depends on the material; anything less fragile than tissue paper may emerge unscathed.
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I am not sure how to know how fast it goes I just was noticing that a grayscale file i down loaded had the speed set for 10000 mm/min and 22 minutes to engrave and i shut it off at 38 minutes and about 42 % done
Ed says it all.
To find your realistic max speed for your laser, you need to do different tests and measure the result/time. But, typically when we get to the limit everything starts to shake so much that it is uncomfortable to use the machine.
Test 1 could be a square 10x10mm with 1mm line spacing. Set it up to 300 mm/s and measure or read off the time spent on the task. Set the time up by 50mm/s at a time and compare the times.
I will do the same afterwards with a square, 500x10mm, same line spacing…
It would be great if you report back with the result.
ps. preferably use the same measurement units to avoid unnecessary confusion.
Per the Preview troubleshooting doc:
If the time estimates are inaccurate, update the Simulation Settings in Device Settings — Additional Settings.
will lightburn let it get to its max speed if the settings not high enough thats what im not sure where to change it
Lightburn does not CONTROL the speed. It tell the laser controller what speed to go and it is up to the controller to get it there. Physics determines if the machine can whip that laser module around that fast.
This is 54,000mm/m and your laser is not capable of that speed. Physics.
Even 10,000mm/m is faster than most can obtain in the short distances that the laser travels.
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I don’t know if you can change your machine’s settings via LightBurn. With my Ruida controller I can read and write to the machine’s engine room (to a limited extent).
Can you read the last project’s duration, as we can with Ruida and Co.?, this is where I compare test results when I tune my machine.
The data that comes from the manufacturers of laser machines is often sales talk in the style of a used car dealer. It applies primarily to power and speed. Not so long ago, 5 Watt single diodes were sold as 10+ … and my Omtch/OMT 60Watt machine was 5 years ago and is still sold with advertising as 600mm/s max engraving speed. - But the same machines are only tested with 300mm/s and the customer gets physical proof of that in the form of a QC test example. - NOT at 600mm/s, because that can’t be done.
As long as you are aware of these strange game rules, it is not a problem. But you have to find your machine’s limitations yourself.
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I did finally do a speed test and the fastest I got was 10000 mm/min 166 mm/sec
Interesting! How did you measure it?
That sounds a bit below what I would expect.
I engraved 1/2 squares starting at a speed of 1000 mm/min and increased the speed by 500 mm/min until the engrave time stopped dropping and figured that was max speed
Not sure how big this is. I would try something like 6” circles (not filled, 0.25% power, and a stop watch) so accel-decel impact would be minimized. A long path is needed so it can get up to full speed. Based on the sound of my SF-A9 (huge module) doing a rapid retract, I would guess it takes 3-4 inches to max out.
Of course, knowing the actual top speed is for bragging rights. It is rare you will get anywhere near that speed in normal use. And like @bernd.dk implied, you need to glue the machine to the table and bolt the table to the wall. 
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