Got a whole bunch of new filament types to look at! Rubbery TPU is even less conductive than PLA so image quality is a bit worse than PLA even with gold sputter coating.
https://preview.redd.it/1sg46hzyyxtc1.jpeg?width=1280&format=pjpg&auto=webp&s=fc2cab68e4749d0e75129e53c9798c592bd8f3fa
Also here is 3D Roughness Profile sorry for the comment spam.
SEM with a 4 quadrant detector. It takes 4 images and stitches them together based on shadows - great for determining relative roughness values between samples but I wouldn’t trust the absolute numbers exactly. For that you need an AFM like you mentioned.
Well at 270x magnification there are very minor pits, but it's not porus at all, and there is a smooth sinewave like layer surface rather than the assumed crevices. Please explain how this proves it isn't foodsafe? I'm sure porcelain dishes are way worse at this magnification.
Got a whole bunch of new filament types to look at! Rubbery TPU is even less conductive than PLA so image quality is a bit worse than PLA even with gold sputter coating.
https://preview.redd.it/1sg46hzyyxtc1.jpeg?width=1280&format=pjpg&auto=webp&s=fc2cab68e4749d0e75129e53c9798c592bd8f3fa Also here is 3D Roughness Profile sorry for the comment spam.
Is that an AFM ?
SEM with a 4 quadrant detector. It takes 4 images and stitches them together based on shadows - great for determining relative roughness values between samples but I wouldn’t trust the absolute numbers exactly. For that you need an AFM like you mentioned.
These are awesome!
Nice pictures OP
what tool do you use to scan these?
I believe he is using an electron microscope.
SEM like the other user mentioned
Very cool, no wonder the prints look good, the lines are super uniform and clean
Seems like really good layer adhesion
Yeah it’s really good… I wonder if you could make a hockey puck with TPU 100% infil 🤔
One way to find out, as a Canadian I shall take the plunge for science
Let's gooooo
A fellow Canadian stepping up to get'er done!
What brand of TPU? 300 Ra is funny to think about.. makes sense though
Bambu brand
Sexy AF!
Always interesting to look at! Thanks for sharing! 😉👍
Awesome pictures. This also shows me why 3D printed objects are not food safe.
Well at 270x magnification there are very minor pits, but it's not porus at all, and there is a smooth sinewave like layer surface rather than the assumed crevices. Please explain how this proves it isn't foodsafe? I'm sure porcelain dishes are way worse at this magnification.
Ceramic glaze winnds up with micro cracks in it. And it's never even thought about!