1.0mm Thick PETG for Screen??
 
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Mario87
(@mario87)
Active Member
1.0mm Thick PETG for Screen??

Hi all,

Has anyone tested 1.0mm thick PETG sheet for the screen? We are trying to deliver 100 face shields but are unable to source a good supply of 0.5mm PETG, just sellers on eBay and Amazon trying to make a quick buck.

I can get large sheets of 1.0mm, but have heard there can be issue with cracking. Can anyone confirm this??

Also, if we cannot use 1.0mm, can someone provide a good source of 0.5mm PETG in the UK that can supply quickly?

We have a laser cutter, so size is not a problem, just need a good reliable supplier for 100 masks worth of PETG.

Best Answer by Dave J:

Hi Mario87,

I have made 50 masks with 0.5mm PETG, with 2 sheets that have cracked near one of the holes, both repaired easily. I have so far made 37 masks with 1mm PETG, no cracks. The 1mm sheet is a bit stiffer, and you need a remix of the bottom reinforcement for 1mm sheet, but otherwise fine.

There is another bottom reinforcement solution suitable for both 0.5mm and 1mml shields, and only take 7 minutes each to print by designed by Hackbroetchen. Link is https://www.prusaprinters.org/prints/27801-easy-and-fast-bottom_reinforcement-alternative . I have tested them on 0.5 and 1mm shields.

Posted : 09/04/2020 4:20 pm
Mario87
(@mario87)
Active Member
Topic starter answered:
RE: 1.0mm Thick PETG for Screen??

Just to add, we can source 0.5mm PVC...would that even work??

Posted : 09/04/2020 5:01 pm
bobstro
(@bobstro)
Illustrious Member
RE: 1.0mm Thick PETG for Screen??

We are using 10mil transparency film sheets from local office supply stores.

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 09/04/2020 5:14 pm
John U
(@john-u)
Active Member
RE: 1.0mm Thick PETG for Screen??

I'm using  0.8mm "PET Plastic Replacement for Picture Frame Glass" sheets; it's a little stiff but it's working great.

Posted : 09/04/2020 5:49 pm
Mario87 liked
Dave J
(@dave-j)
Trusted Member
RE: 1.0mm Thick PETG for Screen??

Hi Mario87,

I have made 50 masks with 0.5mm PETG, with 2 sheets that have cracked near one of the holes, both repaired easily. I have so far made 37 masks with 1mm PETG, no cracks. The 1mm sheet is a bit stiffer, and you need a remix of the bottom reinforcement for 1mm sheet, but otherwise fine.

There is another bottom reinforcement solution suitable for both 0.5mm and 1mml shields, and only take 7 minutes each to print by designed by Hackbroetchen. Link is https://www.prusaprinters.org/prints/27801-easy-and-fast-bottom_reinforcement-alternative . I have tested them on 0.5 and 1mm shields.

Cheers,Dave Jackson"Enthralled Nooby (not so much maybe, ~58 years old)... If 3d printers had been around 40 years ago... "

Posted : 10/04/2020 2:22 pm
Mario87 liked
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