Laser width help

Hi I have a foxalien 40w laser with a 10w out put just wondering if anyone could help me. i am trying to determine the width of my laser dot.
many thanks in advance

Hi.

The easiest IMO is to do the interval test in the “laser tools”, and to compare the width of the burn to the specified interval figure.
The quality of the magnifying device obviously plays a role in the accuracy.

The properties of the material to be burned and the speed does affect the width of the burn.
The harder the material is to burn and the faster the speed is, the closer the burn width is to the actual dot dimensions.
The easier the material is to burn and the slower the speed is, the farther the material burns outside the actual dot.

The focus plays the greatest role, and the amount of variation is determined by the focal length of the lens system.

Regards,
Sam

:finland:

HI is the any videos or snap shots on how to do this any ware
Thanks

For cutting, you can use @BillieRuben’s Kerf Measurement Tool:

The result will be different in each material you use, sometimes even “the same material” from different sources, so plan on many tests!

3 Likes

Hi.

Probably not since it’s a very straightforward test.

Just

  • click the “laser tool” tab
  • choose the “interval test”
  • input burn parameters
  • input steps, 10 will tell You quite a bit, but can obviously be less as well.
  • input the min/max interval, the advertized spot size to 3*the spot size is a good starting point.
  • choose size, You’ll be magnifying the result so it can be small.
  • click START.

When the burn is complete

  • view the result with a magnifying device of Your choosing in order to determine the dot size.

IIRC the burn parameters were not marked on the test piece, so it pays to mark them Yourself for future reference.
Because:

+1 to that, especially if You cut, not just mark/engrave.

Regards,
Sam

:finland: