Peopoly moai laser pinpoint looks like an L

#1

Hello,

I’ve had a moai for some years now and am getting some difficult issues. Reaching out to support takes all night so I was hoping someone here may be able to help me.

My prints recently started to have an aura arround them and their quality dropped drastically overnight. After going back and forth with support over a few days I recalibrated my galvos so now it’s a perfect circle. However I noticed the pinpoint for my laser was no longer a dot. It appeared to look like an L. Thinking the acrylic may be causing some diffusion I removed both the acrylic from the vat and on top of the galvos however the L persists. Would anyone have an idea for how to correct this?

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Can be seen in better detail here:

Thanks in advance.

#2

Here are some pictures of the mentioned “aura”

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#3

Please contact by email, so that the peopoly technical team can help you in time

#4

Do you have the protective window over your galvos? It might need some cleaning.

#5

I do have the acrylic over the galvos. I cleaned tmot with alcohol and it’s crystal clear. The distortion was not resolved by that.

I was however able to refocus the laser by adjusting the Y mirror!

#6

Myself, my Moai just came out of storage and I’ve had to clean the protective window and … very carefully… clean the mirrors on the Galvos. Check to ensure nothing is in front of the laser opening.

— Just watched your video. Clearly, the laser is out of focus. Remove the laser and examine the exit port.

#7

Wait a minute. The Y mirror?

Oh, BTW, do you have the calibration file called “P_yuan-test.gcode”? I need it, and it’s impossible to get help from the website.

#8

Yeah,

By adjusting the height of the Y galvo I was able to refocus the beam. I honestly don’t know how, but it worked.
Before: https://drive.google.com/file/d/1GMSsKlZpVPJ-Jm3jwtybQCGGD-MM4Mux/view?usp=drivesdk
After:
https://drive.google.com/file/d/1GNJdo92ENwqMAzUI9ZHv4_CkUQXc_Cmy/view?usp=drivesdk

Send me your email address and I’ll forward you the access link they sent me.

#9

Perhaps the beam was hitting the lower edge? Was the galvo too high?

#10

It’s possible, but unfortunately not something I can easily check.

The email wasn’t working so here is the link they sent me.
https://drive.google.com/drive/folders/1viG7eDkbmf0CZmhZIv_i1JGZaIymJj8t?usp=sharing