PET Filament Review

Another 3D printing material that can be tested and then used in a home or office environment is PET (Polyethylene Terephthalate). PET filament is food safe and waterproof therefore it is especially good for making vases, bottles, boxes, all sort of containers. Even though a higher width nozzle diameter is recommended, it can also be printed with 0.4 mm nozzle. It might take a while to find the right settings for this filament. Therefore we wouldn’t recommend it for beginners. However, if you got bored to print with PLA, then go ahead and try it out. Click on picture to zoom

PET Filament Review - Different Speed Settings PET Filament Review - Different Layer Height Settings

PET Filament – Speed and Layer Height Test

We printed bracelets and bowls on our Delta Wasp 2040 to test the settings for this material. We used Taulman Print Filament, T-Glase, Red 1.75 mm PETT. With the heated bed there was no problem with warping. This filament flows well but causes a lot of oozing. Printed objects with lots of retractions didn’t come out so well. Therefore objects like vases gave better results. Slicer software has an option “vase mode” making the nozzle move in one direction.

PET Filament Review

Our observation was that thicker layers made objects more transparent and shiny. Also, printing with 0.4 mm nozzle higher speed helped to make it look smoother. Please see the first picture above with a printing speed test.

Facts About PET

– PET is naturally colorless and transparent but there is all sort of filament colors available for 3D printing.
– As it is food safe and waterproof it is commonly used to make water bottles and food containers.
– PET is a basic material with many derivatives: PETG, PETT, etc.
– PET is easy to recycle and it is widely recycled on the industrial scale.
NB: It is not suitable for all printers as high temperatures may damage some extruders.

Original STL files:

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