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PEI removal (WITHOUT damage)

Posted by boelle

boelle

PEI removal (WITHOUT damage)
May 06, 2017 04:16AM

Registered: 9 years ago
Posts: 93

Hi

I got one of the MK42 beds and i'm in the need of changing out the standoffs that came on it.

are there any tricks that can be used to lift the PEI without causing any damage to either PEI or adhesive ?

or is the only alternative to take an sharp knife and cut a cross on the screw head just big enough that an allen key can get to it?

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Dust

Re: PEI removal (WITHOUT damage)
May 06, 2017 04:22AM

Admin
Registered: 13 years ago
Posts: 7,000

If is the same stuff as on the mk2, no way to remove it other than destructive, that I know of...

[manual.prusa3d.com]

but I wonder if you let the adhesive warm up if becomes sticky again and you could re stick the PEI

Edited 1 time(s). Last edit at 05/06/2017 04:29AM by Dust.

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boelle

Re: PEI removal (WITHOUT damage)
May 06, 2017 04:29AM

Registered: 9 years ago
Posts: 93

mk2 ? i have never seen those with PEI

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boelle

Re: PEI removal (WITHOUT damage)
May 06, 2017 04:32AM

Registered: 9 years ago
Posts: 93

but yes that was also my idea... heating it up and lift the pei and restick while the glue is hot

and then again i just need access with an allen key so i can hold the screw

hmm... guess i will just have to be brave and try the "cut a cross" method. seems the less risky option

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Dust

Re: PEI removal (WITHOUT damage)
May 06, 2017 04:37AM

Admin
Registered: 13 years ago
Posts: 7,000

Original Prusa mk2 is the machine with the original mk42 bed, what yours was cloned (not night word as it is open source) from.

I wouldn’t want to heat it, not beyond 100c anyways, might warp the bed

Edited 1 time(s). Last edit at 05/06/2017 04:38AM by Dust.

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boelle

Re: PEI removal (WITHOUT damage)
May 06, 2017 04:44AM

Registered: 9 years ago
Posts: 93

mine is a "clone" yes

its designed from the opensource files and 24V option added

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boelle

Re: PEI removal (WITHOUT damage)
May 06, 2017 06:16AM

Registered: 9 years ago
Posts: 93

anyways

i had to cut arround the screws so damage can be avoided.

i can use the bed but the pei will have to be replaced.

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throughall

Re: PEI removal (WITHOUT damage)
May 29, 2017 08:37PM

Registered: 7 years ago
Posts: 1

Put your PEI covered heat bed in the freezer,
[www.youtube.com]

Edited 1 time(s). Last edit at 05/29/2017 08:41PM by throughall.