MUCH STRONGER 3D prints due to LESS COOLING! Testing PLA & PETG

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I tested how much the strength or better the layer adhesion of FDM 3D prints is affected by the amount of cooling air we use. By properly adjusting this value we can increase the strength of our parts by more than 50% and make them almost uniformly strong.
I also scanned a couple of 3DBenchys printed at different fan speeds with my AtosCore from GOM to find out how cooling affects the accuracy of 3D prints.

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Cooling shroud test by NopHead: http://hydraraptor.blogspot.com/2016/...
GOM Atos Core (3D Scanner): https://www.gom.com/metrology-systems...
GOM Inspect (evaluate 3D scans): https://www.gom.com/3d-software/gom-i...

TESTED MATERIALS
Spoolworks PLA: https://e3d-online.com/spoolworks-pla
DasFilament PETG: https://www.dasfilament.de/filament-s...
PrintaMent PET-G: https://www.aprintapro.com/shop/print...

PRINTED MODELS
Temperature test tower: https://www.thingiverse.com/thing:209...
3D Benchy: https://www.thingiverse.com/thing:763622
Thanos bust: https://www.myminifactory.com/de/obje...
Blackbird SR-71: https://www.thingiverse.com/thing:308...

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DISCLAIMER: This video was sponsored by Audible.