Carbon-nylon warp
I really like the NylonX product from Matterhackers - I love how tough it is and the finish is great. The only problem is that I'm having a hard time overcoming warping - I presume due to differential thermal contraction.
My printer is the Prusa3D MkIII and I have upgraded to a hardened steel nozzle. To get good layer adhesion I'm using 265C for the extruder temperature and I use a default option of 90C for the bed temperature.
Printed parts tend to "cup" up at the edges - which I can fix while printing by having Slic3r add a brim to hold them down. But after I remove prints from the bed, they really bend, yielding a convex bottom surface in thick items and a wobbly looking parabaloid shape for thin, flat items (like boxes/enclosures).
Any ideas on how to minimize the warp? Is there a general guideline on which way to adjust bed temperatures to control warping
Re: Carbon-nylon warp
I use the XT-CF20 from ColorFabb with the original E3D hardened steel nozzle.
Both on a Prusa i3 MK3 (R3) with the 0.4mm hardened nozzle.
No housing and normaly an open window behind the Printer.
I get no warping at all. And no clogs allthough i use the "small" 0.4 nozzle.
Becuase of the hardened nozzle, i set the temps about 5°-10° higher than manufacturer settings.
Always depending on the used Filament.
The only thing i pay attention on is a good first layer and slow printspeeds.
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nec aspera terrent
Re: Carbon-nylon warp
Thank-you for the response.
Interestingly, the Colorfabb material is not Nylon, it's something from Eastman company called "Amphora". There's nothing on the website about the base formulation of the material and I turned up a blank searching for Amphora's UL Yellow-Card - most plastics have one for fire/insulation test registrations.
Any idea what it is? The only data on the Eastman site is "no styrene". Nice of them to say what it's not. It would be better if they could contribute at least something about the general polymer family it belongs to so we can make some guesses about how it's going to work in a real world application. CTE would be nice too, and glass transition temp.
Re: Carbon-nylon warp
Upps, my mistake.
The xt-cf20 is PETG. 😳
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nec aspera terrent
Re: Carbon-nylon warp
And here are some more specs:
Print Temp 240-260°C
bending strength (6,2 GPa)
glas transition temp (Tg 80°C)
breaking elongation (8-10%)
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nec aspera terrent