Advances in 3D filament manufacture - geek alert!

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Advances in 3D filament manufacture - geek alert!

Postby RetireeJay » 2016-May-Tue-17-May

It happens (don't ask why) that I have a subscription to "Plastics Engineering" magazine. The magazine is really for people who work big-time in the plastics industry and it can get pretty geeky at times - but overall it's surprisingly readable.

Anywho, there are a couple of articles in the recent issue of particular interest to the 3D printing community. The first one talks about new equipment that can produce 3D filament with extraordinarily tight control over filament diameter and filament ovality, and also addresses bubble inclusions in the filament.
http://read.nxtbook.com/wiley/plasticsengineering/may2016/technicalpaper_optimizing.html

The next article discusses formulation of PLA with certain fillers that help it to bond well to the print bed and to reduce shrinkage problems. I think the author actually uses a consumer 3D printer with PLA in a non-professional, non-industrial environment because he talks about using blue painter's tape, for example. On the other hand, I am sure that the author actually works in the plastics industry.
http://read.nxtbook.com/wiley/plasticsengineering/may2016/technicalpaper_improvingpla.html
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Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
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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Advances in 3D filament manufacture - geek alert!

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Re: Advances in 3D filament manufacture - geek alert!

Postby plexus » 2016-Jun-Wed-10-Jun

Thanks Jay! very interesting!
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Re: Advances in 3D filament manufacture - geek alert!

Postby JonS » 2016-Jun-Sat-00-Jun

Thank you Jay! I got a lot out of reading those.

Now where can I buy filament with 13µm tolerance?
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- Dual Ubis 13S metal hot ends (swapped for original Ubis metals)
- Dual Gear Head extruders
- Heated bed
- PEI print bed film

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