What Causes Vertical Holes in Some Prints?

[rdstew]

Had my Mars Pro for about 2 years now. I often get long vertical holes in the Z axis of my prints. What might be causing this?
Is there anything I can test to see if something is burned out or not working?

Thanks,
rdstew

[Alpharius]

Had my Mars Pro for about 2 years now. I often get long vertical holes in the Z axis of my prints. What might be causing this?
Is there anything I can test to see if something is burned out or not working?

Thanks,
rdstew

I recently had the same issues come up and from what I can tell, it is the result of black spots forming on the LCD screen. Unfortunately, the Elegoo site troubleshooting says that the LCD needs to be replaced. Now the part in question doesn't appear too expensive, and I'll leave a link to where you may be able to buy one, as well as Elegoo's instructions on how to change it out. I've also left an image of my print and of the screen for reference. Definitely follow their instructions at the beginning of the tutorial to confirm that it is the issue. Best of luck, and hope this clears this up.

Elegoo tutorial page: https://www.elegoo.com/blogs/3d-printer-...nted-model

Chitu Systems Store page: https://chitusystems.com/product/5-5-inc...-mars-pro/

[rdstew]

Alphareus I believe you are correct about the lcd screen replacement, and it is not expensive. I upgraded to a Saturn printer and sold my Mars Pro, but I did tell the buyer that it likely needed replacement. He was planning to do that.

rdstew