Non-warping, no smell, PET filament

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Non-warping, no smell, PET filament

Postby PBuser » 2015-Aug-Sun-05-Aug

No shrinking or warping.
No smell.
No enclosure required.
Build plate can be heated or not (depends on brand).
Can be printed on glass without any glue*
Does not absorb water or moisture from air, so no storage container needed.
Clear color is the most transparent of all filament materials.
Is much "tougher" that PLA or ABS; will bend before breaking.
Uses about the same extruder temps as ABS.
Does not need a print cooling fan like PLA does.
Also known as Polyester, PETG, PETT, PET+
Is what most soda pop bottles are made of.
Does not degrade in water.
FDA approved in the USA for for food contact.
Not brittle.
Is the most recycled plastic.
Prices are coming down, and some are about the same as ABS.


Test model: http://www.thingiverse.com/thing:990484
Printing video: https://vid.me/eEIW
Result video: https://vid.me/eEUW


Current places carrying PET:

eSun - from Intservo, in North Carolina USA:
http://intservo.com/products/esun-petg- ... =942259463
*opaque black is tested to print onto glass without any glue at all;
stays attached above 80C, and pops off at room temp.

eSun - from Intservo on Ebay, in North Carolina USA:
http://www.ebay.com/itm/221745555099

Alchement - from New Jersey, USA (choose PET from the menu):
http://www.ebay.com/itm/321625926855

RepRapperTech in Hong Kong:
http://www.reprappertech.com/3d-printin ... /petg.html

Made Solid - from California USA:
http://shop.madesolid.com/products/made ... 75mm-1-lbs

Made Solid - from Matter Hackers, in California USA:
http://www.matterhackers.com/store/3d-p ... -pet-175mm

Made Solid - from Design Box, in Ohio USA:
http://designbox3d.com/products/madesolid-pet-filament

Made Solid - From Australia:
http://thinglab.com.au/shop/3d-printing ... t-filament

Colorfabb XT - from Netherlands:
http://colorfabb.com/xt-black

Colorfabb XT - from Printed Solid, in Delaware USA:
http://www.printedsolid.com/shop/175-3/xt-amphora/

Taulman T-Glase - from Matter Hackers, in California USA:
http://www.matterhackers.com/store/3d-p ... lase-175mm

Taulman T-Glase - from MakerGeeks, in Missouri USA:
http://www.makergeeks.com/tpe3dprfibl1.html

Taulman T-Glase - from Imprinte 3D, in France:
http://www.imprimante3dfrance.com/en/pett.html

Eco PETG - from China (must email to order):
http://www.ecoreprap.com/pro/petg-filament

Reprap PET - from Denmark:
http://reprap.me/filament/petg-1-7mm

Gizmo Dorks - in Los Angeles, USA:
http://gizmodorks.com/petg-3d-printer-filament

Various:
http://www.microcenter.com/search/searc ... cro-Center

3D Prima, from Sweden:
http://www.3dprima.com/en/filaments-for ... tural.html
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Non-warping, no smell, PET filament

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Re: Non-warping, no smell, PET filament

Postby cacb » 2015-Aug-Sun-06-Aug

You list a number of arguments in favour of PETG, very nice.

I guess there are downsides, what are they?
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Re: Non-warping, no smell, PET filament

Postby PBuser » 2015-Aug-Sun-06-Aug

Well for structural parts where you can't use PLA, using PET seems to be more shiny that the other main option of ABS. Especially black. The shine may not be wanted (although I think it looks good).
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Re: Non-warping, no smell, PET filament

Postby RetireeJay » 2015-Aug-Sun-10-Aug

I'll add to the benefits that PET (specifically T-Glase) doesn't ooze anywhere near as much as nylon (the only other "odorless" filament I know of).

T-Glase is not opaque, it's translucent - which may not always be the appearance you want.

Nylon is extremely tough (meaning hard to break) - but it gets some of its toughness from being more flexible than the other plastics.

T-Glase works well with bridging. It doesn't require very much fan (if any). Although it can be printed directly on glass, I like using glue stick to control the adhesion (I had some glass chip because of too much adhesion).

T-Glase can also be bought directly from Taulman3D.com. Another supplier is our own PxT, doing business as extrudables.us.
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PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
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Re: Non-warping, no smell, PET filament

Postby PBuser » 2015-Aug-Sun-11-Aug

Yes the T-Glase was the first PET that I read about, but did not know about the advantages because they were not spelled out.

As for nylon, I wonder if there are any parts which really really would need it, compared to PET versions of it. The difficulties in printing the two materials are so far apart, yet the strength seems almost the same, that maybe all parts should just be re-designed for PET only.
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