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[Solved] Gameplan for my first long print!?  

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jazzgust
(@jazzgust)
New Member
Gameplan for my first long print!?

Hi!

I got my Prusa Mk3s+ about 2 weeks and I´m getting ready to do my first big print. I´ve been trying to wrap my head around this object my brother draw, and the best way to print it. With full supports the print time is around 19 hours, and I´m thinkin to myself, you got to be able to optimize this. As a beginner I figure I´ll turn to the forums. How would you print this? 

It needs to be rigid, but i dont think a solid part is necessary. Could you place supports on certain places and rely more on bridging, or would that compromise the stability of the part to much? 

Pictures and link to stl below. I´m grateful for any advice.

Thanks /Gustav

 

https://1drv.ms/u/s!AnGnmBsSEFVBiVYdpu1ykdpjUCQi?e=a1UE9R

Posted : 14/07/2021 10:35 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Gameplan for my first long print!?

There will probably be a number of replies to this query, 
this is one option
the wings should print with bridges. 
the conical section is a bit of a shallow angle, if it could be increased towards 45 degrees then supports would not be needed

regards Joan

Attachment removed

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 14/07/2021 1:18 pm
jazzgust liked
jazzgust
(@jazzgust)
New Member
Topic starter answered:
RE: Gameplan for my first long print!?

Thanks for your reply!

Ok, so if I understand the idea here is loose the infill by increasing the perimeter, and in that way the rectangular overhangs on the sides will have a better chance of printing good even if the angle is as steep as it is? And keeping the supports when it fuses with the circular shape ensuring stability where the part really needs it. Knocked off 8 hours right there.  

Thank you for helping me learning 🙂

/Gustav

Posted : 14/07/2021 1:49 pm
Diem
 Diem
(@diem)
Illustrious Member
RE: Gameplan for my first long print!?

... and changing all overhangs to 45 degrees removes all support, then inverting the part improves the stability on the print bed.

This rough reworking should illustrate the idea.

Cheerio,

Posted : 14/07/2021 4:07 pm
jazzgust
(@jazzgust)
New Member
Topic starter answered:
.

I was able to change the angle of the cone and printed the whole thing in a little over 7 hours without supports. It turned out functional and looks good on the outside. The bridges didn´t make it, and now I see that a didn´t checked detect bridging perimeters. Learning from my mistakes here. Anyway, the print will work and serve it´s purpose. Thank you both for the tips!

/Gustav

 

Posted : 15/07/2021 4:19 pm
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