pepeu
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Lack of T-Rex anatomy

Jan 10, 2019 7:14 am

Hi,
I'm printing the T-Rex and I don't have many pieces left to do. There's one thing I'm wondering about though. From: https://www.prusaprinters.org/cool-prin ... 3d-clocks/ you say "Only a few parts (pelvis/hip, left leg) need a 10% infill to improve the strength of the parts around the supporting rod."

Pardon my lack of T-Rex anatomy knowledge, but I can't really tell which part of the Femur Tibia stl that is the left leg.

*clueless*

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tim.m30
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Re: Lack of T-Rex anatomy

Jan 10, 2019 6:43 pm

I printed everything pretty much with defaults, though I may have used RECT infill rather than GRID and it came out fine. As for what's a femur or tibia - that's what Google is for. But the clue about strength for the support rod should give you a hint: the big pieces near the stand.

I made the mistake of gluing the legs on before having the base and stand ... so I had to be creative with my pose. At that point I was quite happy my support rod was flexible.
T-Rex.jpg
T-Rex.jpg (115.87 KiB) Viewed 181 times

pepeu
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Re: Lack of T-Rex anatomy

Jan 11, 2019 12:44 am

tim.m30 wrote:
Jan 10, 2019 6:43 pm
I printed everything pretty much with defaults, though I may have used RECT infill rather than GRID and it came out fine. As for what's a femur or tibia - that's what Google is for. But the clue about strength for the support rod should give you a hint: the big pieces near the stand.

I made the mistake of gluing the legs on before having the base and stand ... so I had to be creative with my pose. At that point I was quite happy my support rod was flexible.

T-Rex.jpg
Thanks for your reply. The issue is not which of these that are the femur of which are the tibia, that I can guess just due to size. The issue I'm having is that the Femur Tibia stl contains both legs, and I can't distinguish which one of those is for the left leg that needs the 10 % fill. I'm assuming I could throw you the bones and you'd pick out the left one with ease. I certainly can't. Hence my question.

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tim.m30
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Re: Lack of T-Rex anatomy

Jan 11, 2019 5:15 pm

Sorry - just having some fun trying to figure out why you'd worry about 10% infill. Especially when all four parts are in the same STL and normally printed at the same time. Are you separating them and printing larger?

Left vs Right? I'd check the part identifier that's cast into the part.
Capture.JPG
Capture.JPG (31.63 KiB) Viewed 116 times
In any case, the tibia is the one with two bones: actually the tibia and fibula. I found it on Google - and learned something.

Image

pepeu
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Re: Lack of T-Rex anatomy

Jan 12, 2019 1:28 am

Thanks! Yea, I can tell the femur from the tibia, but I just never saw the "L". Still failing on the neck for some reason. Trying with some glue to make it stick this time. Thanks for pointing me to the big "L" I just couldn't see. Guess I'll print both complete legs with 10 % fill.

Cheers! :O)

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tim.m30
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Re: Lack of T-Rex anatomy

Jan 12, 2019 8:54 am

If PLA isn't sticking, you need to clean the bed. Really. It helps, and it's the only thing that works reliably, every time. I sent a PM with details.

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tim.m30
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Re: Lack of T-Rex anatomy

Jan 13, 2019 8:08 pm

ps: The T-Rex neck piece requires an 8mm brim to print reliably. To be safe, I used 12, if I recall correctly.

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