Notifications
Clear all

Printer Plate Damage  

  RSS
Randall Jones
(@randall-jones)
New Member
Printer Plate Damage

I printed a thing last night.  When it was complete, I took the plate off the hotbed and set it aside to cool.  This morning I removed the printed part and a piece of the surface came off with the part.  Now I have a half-inch by quarter-inch oval that's damaged.  I can feel the adhesive that was holding it down.  The other side of the plate is undamaged.

Can this be repaired?  I've only had this printer a few months.

Posted : 08/12/2021 8:55 pm
Neophyl
(@neophyl)
Famed Member
RE: Printer Plate Damage

You can strip off the pei sheet and replace it with a new one.  However it is VERY difficult to remove.  Getting rid of the left over adhesive is messy as its really good at its job normally.  Personally I would just flip it over and print on the other side and buy a replacement sheet as a spare.

Out of curiosity what filament were you printing ?  I hope you used one of the barrier methods to reduce adhesion if it was something like petg or one of the other 'sticky' types of filament.

Posted : 08/12/2021 9:01 pm
Randall Jones
(@randall-jones)
New Member
Topic starter answered:
RE: Printer Plate Damage

So I'm just out and have to buy a new sheet.  Great.  How much does that cost?

Posted : 08/12/2021 9:06 pm
kennd
(@kennd)
Reputable Member
RE:

You don't have to rush out and get a new sheet. A properly cared for surface will last for years with little deterioration of performance. I have been using one side of my sheet for 2.5 years and it is as good as new. I have never used the other side.

In the meantime you can use the damaged side for small objects than can be placed to avoid the damage or for testing. I have seen postings where people have suggested/used Kapton tape to cover damaged area. Tape will show on bottom of print.

As Neophyl noted a barrier layer is needed for some materials to protect the sheet.

https://help.prusa3d.com/en/materials has a lot of information/warnings on printing with different materials.

Kenn

 

Posted : 08/12/2021 9:30 pm
Neophyl
(@neophyl)
Famed Member
RE: Printer Plate Damage

As kennd says, its a learning experience.  I bought my mk3 (not s) over 3 years ago and took a small chunk out of it very early on with petg.  Pretty much the same as you.  I hadn't read the manual properly about using an adhesion inhibitor with certain filaments on the smooth sheet. 

I am still using the other side of that sheet today.  I bought a replacement pei sheet and also a spare complete sheet about 2 years ago while ordering other stuff from Prusa and they are still in the bubble wrap.  I do occasionally use the damaged side but not very often.

I can tell you that I have never made that mistake again.  Sometimes (most times) its the mistakes that teach you more.  

The other thing is the print sheets are classed as consumables by Prusa.  But a properly taken care of will (and has) lasted years and its not showing any signs of stopping.  

Posted : 08/12/2021 10:49 pm
AnnieR
(@annier)
Estimable Member
RE: Printer Plate Damage

Happened to me a few days ago. Tore off about a 2 inch piece. Just ordered a new Fysetc (Fystec?) sheet which should be here Friday. Still the other side is still good. 

Someone said that you can replace the surface coating. I don't know if I will try that or not. 

Posted : 08/12/2021 11:05 pm
Randall Jones
(@randall-jones)
New Member
Topic starter answered:
RE: Printer Plate Damage

Well, thank you, all.  I gotta figure out this non adhesion barrier we're talking about.

Merry Christmas

Posted : 08/12/2021 11:38 pm
jsw
 jsw
(@jsw)
Noble Member
RE: Printer Plate Damage

Been there, done that, unfortunately.

A week or so after I got my printer I printed an ABS print which would not budge from the plate.  I was not experienced printing on the PEI surfaces at that time.

I got impatient and used a kitchen implement (small spatula) to pry it off and a couple of pieces of the PEI coating came off with it.  Lesson learned the hard way.  See the boo-boos to the left and rear of the print below.

I can still use that side for smaller prints, and, of course, the other side is good.

I know that some users have successfully re-skinned the plates, carefully removing the remaining PEI with a solvent (limonene?) and re-applying adhesive-backed PEI sheets to it.  I have yet to try it, though I might when the 'good' side of that plate gets more boogered up.

Posted : 09/12/2021 2:46 am
Share: