New to working with laser engravers - have design I have imported through LightBurn that works fine on flat surface but will not work with rotary - appears to be cutting but make only a single light at the top. I stopped it after 13 minutes. Have watched and rewatched many videos but now do not know how to address this issue.
Thanks
In all likelihood it’s not configured correctly.
Before you modify anything, read and save the controllers configuration from Edit → Machine Settings so you will have a factory copy for a backup…
What kind of rotary, wheeled (roller) or chuck?
Using the test button on the rotary gui…
If it’s a chuck type, does the chuck rotate one completer turn and back when pressed?
For a wheel type rotary, the drive wheel should turn once and return…
This is what my machine settings looks like –
I’m using a roller rotary - and the test looks correct. The preview also looks like it should and when the actual burn is going it appears to be moving as it should, but when it finishes
Sorry! My machine often defaults to the wrong connection. Here’s what I should have sent –
Need to find out how to do a screenshot… I cannot read any of that…
Don’t know exactly what you mean, but you can change the default in the devices gui… the default has an asterisk (splat).
Usually there is an option for current window or something that will just capture the small window… Sometimes both help…
What I’d like to see is in the vendor settings.
Also the rotary gui, where you configure the rotary…
Where did you get the mm/rotation?
When you press test in that gui, does the driving wheel rotate one complete turn and back?
Most of the machines I have time with are not grbl, so I’m not familiar with the mm/rotation game… all of my equipment is steps/rotation.
Looks like a half rotation to me but sent a video of what happens during test. I set it up per the written directions. But there is this statement "The Y-axis travel resolution value may depend on different laser engravers. You can engrave a 5050 mm square, measure the actual Y-axis travel length, and then calculate the actual value through the following formula. It may take multiple times to reach the exact setting. The new value = 50Previous value/the actual Y-axis travel length.
The reason for purchasing this particular rotary roller device was because it was manufactured by the same company as the laser - thought it would work easily.
That link may work on your computer but not over the internet…
Put it in something like Google drive and post a link to there…
Do you have a link to the original documentation for rotary use supplied with by the manufacturer?
Step 8 on page 8?
Usually it does…
Lets get back to the test button in the gui… This needs to rotate the driving wheel on your rotary one complete turn and back…
Are you advising that it isn’t doing this?
This must work…
I believe that is correct - I sent a video of the test so you could actually view what happens. Thanks
Steps seems very low. Starting point is normally 3000
Steps seems very low. Starting point is normally 3000
Does that translate to 3000 mm per rotation? My instruction manual uses that language.
Thanks
Jack -
Step 8 on page 8?
This is very hard to read on the manual - I believe it says “Y steps per mm” “56,000”. or it may be “56.000” because it lists 56.52 mm per rotation in the screen image just below it.
I guess.
It’s how many gear movements, steps, it takes to rotate something 360 degrees. It’s part of the calculation used with roller diameter and cup, bowl, tumbler dia.
You generally measure the diameter of your drive roller in mm. You then find the size dia. in mm of item on roller, cup etc. You then adjust your steps up and down testing each step till the cup makes 1 full rotation. Practice with a taped cup. On an 80 watt machine 450 speed and 20% power marks 3m tape without marking the actual cup. Your settings may vary.
For a 40oz Polar Tumbler on my machine I start at 3000. Unless your machine has a built in roller system which is diffrent because the step motor isn’t on a roller I believe.
He has a wheel rotary, so this measurement isn’t used…
It’s handy to have it in the gui, since it allows you to created a tool layer for the area you wish to engrave.
This is only used in a chuck type rotary…
Probably true with a dsp… he’s using grbl, the rotary is using mm/rotation or something…
To whom? I never saw a video, only the manuals link…
The believe it’s correct… what do you mean, it’s operating correctly or that you agree that it should operate that way?
If you can see the motor pulley you can find mm/rotation by adjusting for 1 rotation and back with the motor itself using the test button… Then you can apply the ratio between the two and it should work…
Where are you now with this?
