Hi, I am testprinting an kitchenchair (1mx0,5mx0,6m) for me with PLA.

3D Printing
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Hi, I am testprinting an kitchenchair (1mx0,5mx0,6m) for me with PLA.
What do you think will be the best material for this purpose?
I am thinking about printing the real part in ASA or perhaps PETG, what do you think ?

Have a nice evening
Marc
https://photos.app.goo.gl/nmLBcS3QsZe4NyGc2

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ASA

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Basiclly ASA is more solid but could you show us the design it self? Maybe even with ASA it still can’t work well to hold a person. By the way, how large is your printer?

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Those are very small extrusion beads for the part size. I’ve never tried such a bed material. ASA might shrink too much. Even PETG might shrink too much. You’re in territory that very few people work in.

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@Jeff_DeMaagd Is correct. You might find it easier to increase your nozzle size so you can print faster. The quality shouldn’t be too different at that scale.

Good luck this looks cool!

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@ly_Zheng Hi, I can send the model tonight, because I am at work right now.
But you can see what the model will look like, if you extrude the photo 60cm straight up.
My printer is a DIY solution, with 1,1mx1,1mx0,95m build volume. The printbed is 5KW silicone heat matt then 2cm precision milled aluminium plate and then a 1mm carbon plate.

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@Aaron_Spaulding Hi, the testpart is printed with an 0.6 e3d volcano nozzle. The real part will be printed with 1.0 to 1.2 volcano nozzle, but I think I have to wait for @E3D_Support Megavolcano, because the throuput is limited with the volcano right now.

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Have you tried the larger nozzles yet though? I could have sworn I printed at those speeds with a 1.2mm Volcano nozzle before.

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Heatbeds don’t do anything once the print is over a few cm high off the bed. ASA might be problematic.

Sorry, but this chair looks flimsy as hell…

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@Ryan_Carlyle Yes, it is flimsy as hell :wink: I have to do some design optimizations.

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@ly_Zheng Here you have the link to the model:

https://drive.google.com/open?id=12_3WMwaQel3yyWP2g3bgAcmqohiHoZlC

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Here you see the “testprint”, only 2cm wide, but its too flimsy.
missing/deleted image from Google+

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I applaud anyone trying to push the boundaries, but honestly looking at the design in that last photo I wouldn’t even trust any of the plastics mentioned even if they were 100% solid injection molded parts. Even if it supports a persons weight at first it will probably quickly fatigue and fail. That design just looks more suited to steel or similar construction. If you are determined to continue trying to make a 3D printed plastic version I would at least suggest looking at a reinforced composite material like PETG or Nylon with carbon or glass fibers mixed in.

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I mean, the armrests are probably injection molded ABS, don’t carry anywhere near the load the chair legs would, and they look twice as thick as the chair frame.

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V