3D Printer: California Filaments Gray PETG 1.75mm Filament Testing - Part 2

This two-part video shows the testing of California Filaments Gray PETG 1.75mm Filament.
PETG is a good choice when you need higher strength and resiliency than you get with PLA.
Also, finished items can handle higher temperatures than PLA. I use it for

I've had very good luck with California Filaments PETG.

Part 1 shows unboxing, and using a Temperature Tower to evaluate the best extrusion temperature to use.

Part 2 covers Bed and Layer Adhesion testing. Unusually, the usual temperature I print PETG at failed this test! I doublecheck the printer with the California Filaments Black PETG. Once I get the temperature and cooling dialed in, I print my favorite PETG torture test: The PolyPearl Tower.

My 1U CubeSat - Fully Assembled Life Sized (1:1) Model is an example of a product I make that uses this filament:
https://betacygnidesigns.etsy.com/listing/1754006658/1u-cubesat-fully-assembled-life-sized-11

California Filaments Black PETG 1.75mm:
https://californiafilament.com/products/gray-petg-filament-1-75mm

Link to Temperature Tower Thingiverse Project:
https://www.thingiverse.com/thing:4356906

Link to Bed Adhesion and Layer Cracking Test
https://www.thingiverse.com/thing:4536632

Link to the PolyPearl Tower Torture Test:
https://www.thingiverse.com/thing:2064029

These are the spatulas I used to help remove the pieces from the print bed:
https://smile.amazon.com/gp/product/B075SLTY8B/

These are the tweezers I used to help remove dripping filament from the print head:
https://smile.amazon.com/gp/product/B0845SKD7Z/

This is the wire brass brush I use to clean the nozzle tip:
https://smile.amazon.com/gp/product/B01J2BS92S/

OpenSCAD website:
https://www.openscad.org/

I used Simplify3D slicer software for the test:
https://www.simplify3d.com/

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Link to my Etsy Store:
https://betacygnidesigns.etsy.com/

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Music:
"Blippy Trance" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/

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End Screen Video Acknowledgement: Cosmic Reef Video produced by NASA and the Space Telescope Science Institute (STScI).
https://hubblesite.org/contents/media/videos/2020/16/1277-Video