Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Fiber laser mode shots

Fiber laser mode shots

Fiber laser mode shots

Currently we have Mitsubishi 4kW fiber lasers in house. Mode shots are taken at the head on 3/8" black acrylic glossy purchased from OEM. No idea what type of acrylic they are, and OEM won;t tell us (playing dumb to sell more I suppose). They are 3/8" x 4" x 4", and are pretty pricey. Anyone have alternative solutions or want to share products they've used?

RE: Fiber laser mode shots

There are several kinds of 'black' acrylic out there. I doubt they had something custom created. Why not just buy some of each and try them all until you get the same results as their too-expensive ones.

Keith Cress
kcress - http://www.flaminsystems.com

RE: Fiber laser mode shots

We just purchased a brand new 2kw fiber laser from a newer company and no one has done a mode or even talked about it.How does the beam shot look different if any from a co2.

RE: Fiber laser mode shots

Crap someone was just talking about the exact same thing, I think it's a different plastic because with standard acrylic it just shoots right through. I'll have to have a few beers and remember what it is.

RE: Fiber laser mode shots

nniicckk78, the fiber mode is a TEM00 vs a TEM01 (it is a solid spot vs. a donut shape). Shooting a mode shot at the head is the best way to tell you what exactly is going on with your beam from the lens - down. These fiber lasers are very picky. ANY dust or debris on the lens or protective window, and you're done! Any time you remove the lens cartridge from the cutting head, and you run the risk of exposing it to any dust particles floating around your shop - I don't care how clean you think you're being, it WILL happen. The OEM sells said acrylic for something like $60 a 3/8" x 4" x 4" pc, and we can get 18 shots (9 per side) out of it. It becomes very expensive very quick.

As a followup, I have found an alternative, and was very pleased with the results. If anyone would like to purchase some , PM me and I can get you the info.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close