Line Interval and Lines per Inch, Omtech 80w

[smessimer (Scott Messimer)]

HI everyone, I’m new here. So, to fully explain my situation, I had Lightburn installed on my desktop. Hard drive failed so I installed Lightburn on my laptop to get some tumblers engraved.

I was able to engrave a tumbler, but it wasn’t as crisp as I had done before. I took notice that my settings were off.

Previously, I had .047 for line interval and 540.43 for lines per inch. Now, I can set the .047, but my lpi automatically goes to 21.28. That’s way off from before!

The tumbler I did run, I went off my LPI, but it just wasn’t like before.

Can anyone help me out? I haven’t found anything when searching.

Thanks in advance!

[jkwilborn (Jack Wilborn)]

The interval is another way of specifying the dpi/lpi… You could enter the 540.43 into the lines per inch field and Lightburn would populate the interval field…

---

1mm/0.047mm = 21.278

21.278 * 25.4mm/inch = 540.4255 for dpi/lpi…

Have no idea why it would display 21.28… mine shows correctly as the 540.43 value in the lines per inch field…

Can you do a screenshot?

[smessimer (Scott Messimer)]

[jkwilborn (Jack Wilborn)]

Enter the 540.43 in the lines/inch field…

The problem is you are entering the interval in inches, not mm.

1÷.05 = 20.00 lines per inch, all of it in inches.

Somewhere you are set to inches… maybe here…

Notice mines in mm and shows the expected values…

Good luck

[smessimer (Scott Messimer)]

That’s what it was! Thanks a lot, now to test again on a tumbler to make sure it’s correct and I don’t have any other issues.

[smessimer (Scott Messimer)]

Tumbler ran perfectly! Thanks again!

[jkwilborn (Jack Wilborn)]

Did you enter the interval or just the lines per inch?

---

I guess I now know why it would display 21.28

Glad you’re up and having fun again…

[smessimer (Scott Messimer)]

I entered the interval and the LPI popped up exactly from my previous notes.