On 3/28/21 11:52 AM, John Dammeyer wrote:
A friend has told me he's had PETG stick so well that it breaks off some of the glass build plate. Seems a bit extreme but that's what he's reported.
Never thought I would use my 3D printer as much as I do. I've also broken glass plates with PETG and nylon sticking too well (pulls out bits of glass) - I get mirror tiles to print on - very inexpensive, but I still don't want to break them...
The key I've found is getting the glass perfectly clean - (A-IPA with a chem-wipe should squeak) excellent for PLA - but other plastics can stick too well or not well enough - so for those I use Elmers glue stick - it breaks instead of the glass - the problem is getting complete and consistent coverage. Supposed to be made of an acrylic polymer - wish I could find it as a spray.
I've printed gaskets using TBU - and used several nylon types - I've found Nylon-X to be amazingly strong - (a bit pricey - but printing something that is brittle isn't cheap in the long run) These days I use nylonX unless there is a good reason not to.. ( I use a vacuum chamber to dry filament - even PLA - makes a lot of difference).
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