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08-07-2017, 11:52 AM | #21 | |
RCC Addict Join Date: Nov 2014 Location: Nowhere
Posts: 1,326
| Re: Be careful with your 3d printed parts!!! Quote:
As far as I know, printing in ABS basically requires a much more expensive rig than the usual, cheaper PLA only machines, since you need hotter extruders and a heated bed. | |
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08-09-2017, 01:01 AM | #22 |
Rock Crawler Join Date: May 2016 Location: SoWIs
Posts: 618
| Re: Be careful with your 3d printed parts!!!
I don't agree with PLA only meant as dis-solvable support material. Nothing will fully dissolve it that won't also ruin PETG, Nylon, ABS, etc. There are a couple filament materials (HIPS/PVA/Etc) you can use that dissolve in water or another mild chemical. I also wouldn't say PLA is only for trinkets, it's perfectly fine for virtually anything that doesn't need much mechanical strength. A dummy scale motor block, a scale Recaro seat, headlight buckets, etc. Another interesting thing I found was carbon fiber reinforced filaments. A 3DXTech graph showed their PETG and even the PLA having a higher tensile strength than ABS reinforced with the same carbon fiber. The PETG was nearly as strong as the reinforced Nylon, which is quite impressive. Another youtuber did a real-world test and nylon/abs/petg showed roughly the same strength while PLA showed around nearly 33% more tentile strength. There's another guy that tested heat-treated PLA to be stronger than any material he tested (40% gain over normal PLA), albeit with unusual shrinkage. 3DXTech graph https://www.3dxtech.com/blog/updated...er-filaments/# Youtube strength test https://www.youtube.com/watch?v=br63xWD2R-I One thing to note, that PLA wheel shown above was roughly the same weight as the Axial ABS wheel but never cracked like the Axial did. As far as printing with ABS, it just requires a printer that's not completely cheap. I know some people who started with cheap printers and they regret not spending the extra for a slightly better printer. I got a clone of a Replicator that can heat the bed up to 100C for ABS and it's fantastic. That wheel was probably the 6th item I had ever printed. |
08-09-2017, 05:57 AM | #23 | ||
Moderator Join Date: Sep 2008 Location: PA
Posts: 13,921
| Re: Be careful with your 3d printed parts!!! Quote:
Quote:
It won't print nylon or flexible filament without modifications though. | ||
08-09-2017, 01:44 PM | #24 |
Quarry Creeper Join Date: Aug 2016 Location: The Netherlands
Posts: 334
| Re: Be careful with your 3d printed parts!!!
As far as I understood, a heated bed really helps with ABS, as will isolation around he printer. You can easily make an enclosure to sort out that last part though. ABS normally requires a bit higher temperature on the extruder for the best results. |
08-11-2017, 01:22 PM | #25 | |
Rock Crawler Join Date: May 2013 Location: Dallas
Posts: 680
| Re: Be careful with your 3d printed parts!!! Quote:
Axial plastic is all injection molded nylon. I haven't seen any ABS from Axial. When I was first learning about plastics and stuff I tried messing with Axial plastic and methylene chloride did nothing, indicating it wasn't one of the other common RC plastics like lexan or ABS | |
08-11-2017, 02:06 PM | #26 |
Moderator Join Date: Sep 2008 Location: PA
Posts: 13,921
| Re: Be careful with your 3d printed parts!!! Heated beds help with adhesion, but ABS likes enclosures. I don't have my printer in an enclosure.
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08-11-2017, 02:27 PM | #27 |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,475
| Re: Be careful with your 3d printed parts!!!
I'm really loving the quality of Shapeways prints, they're making me not want a printer (as I can only afford cheap), I usually get black strong and flexible which is Nylon, How Does Nylon do in the heat?
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08-14-2017, 09:16 PM | #28 |
I wanna be Dave Join Date: Dec 2009 Location: Outside DC
Posts: 2,997
| Re: Be careful with your 3d printed parts!!!
A little off topic, but I made the mistake of putting one of the sought after newbright jeep jks (new in box) in a garage sale (in my garage). Temps were in the 80s, but the greenhouse effect of the box turned the body into a candle!!! It looks great under water though. |
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