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Improve engraving quality of laser machine

Posted: Wed Mar 13, 2019
by Cliff Bryans
Grabbed from Cartonus website.
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If you want to improve engraving quality of your laser machine, try a simple setup procedure – adjust Reverse Interval.

Step 1: Initial Data
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  • Chinese laser machine
  • Table: 500×300 mm
  • Laser tube: 40 watts
  • Program: RDWorks

Step 2: Engraving Parameters
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Run laser cutting program and draw small square with sides 10×10 mm.

Set engraving parameters
  • Processing Mode: Scan
  • Power (%): 30-40 (For 40 watt laser)
  • Speed (mm/s): 300
  • Interval (mm): 0.4 (This interval allows you to distinguish between engraved lines)
Engrave the image.
Look at the square with a magnifying glass. If even and odd lines do not dance and lines are aligned horizontally – then everything is fine. Otherwise, go to next step for settings.

Step 3: System Setting
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Open System Setting window: Config > System Setting > General Settings

Set Scanning (Reverse Interval) check box.

Add the following string values

1. Speed (mm/s): 100 | Reverse Interval (mm): 0.10
2. Speed (mm/s): 200 | Reverse Interval (mm): 0.15
3. Speed (mm/s): 300 | Reverse Interval (mm): 0.19
4. Speed (mm/s): 400 | Reverse Interval (mm): 0.23
5. Speed (mm/s): 500 | Reverse Interval (mm): 0.25
6. Speed (mm/s): 600 | Reverse Interval (mm): 0.28

These values are valid for our particular machine instance. You may have other values.

Step 4: Square
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If even lines (second line) are to the left of odd lines (first line), increase the value of Reverse Interval (Figure 1),
otherwise reduce (Figure 2).
Adjust values for the Reverse Interval and engrave the square until the lines will align horizontally (Figure 3).
Do the same for all engraving speeds that you use.

Step 5: Vector Logo
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Look at the quality of engraving of the vector cartonus logo

1. Without adjustment Reverse Interval
2. With the correct setting Reverse Interval and the value of Interval (mm): 0.1
3. For better engraving, set the value to Interval (mm): 0.05

Step 6: Wood Luck!
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Hope this helps.

Re: Improve engraving quality of laser machine

Posted: Wed Mar 13, 2019
by Pete Cyr
Thank you - that is good site and they visit here often.

Re: Improve engraving quality of laser machine

Posted: Thu Mar 14, 2019
by Leo Voisine
AWESOME post ------ THANK YOU

Re: Improve engraving quality of laser machine

Posted: Sun Aug 11, 2019
by Leonard Lewis
Thank you for this invaluable tip!

Leo

Re: Improve engraving quality of laser machine

Posted: Wed Oct 21, 2020
by Bryan Kelly
great info...thx

Re: Improve engraving quality of laser machine

Posted: Wed Oct 21, 2020
by Brian Book
Great info ... thanx for sharing !

Brian

Re: Improve engraving quality of laser machine

Posted: Tue Nov 17, 2020
by Vicente Ferrando
Thanks a lot for the tip! I tried it and now the engraving quality has improved a lot!

Vicente

Re: Improve engraving quality of laser machine

Posted: Wed Dec 09, 2020
by Luis Carvalho
Thank U Man! i adjusted mine CNC LAser. My values needed to be set in 0.02 e all speed.