How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.
 
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How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.  

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Magical Terry
(@magical-terry)
Eminent Member
How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.

I was thinking some sort of variable infill as it looks like only the top needs support really, but I can only see an option for variable layer height. 

5% / 10% infill leads to quite a lot of bridging infill at the top which may or may not work. 

Any ideas?

https://www.thingiverse.com/thing:2575832

This topic was modified 3 years ago 4 times by Magical Terry
Posted : 18/01/2021 8:19 pm
Neophyl
(@neophyl)
Illustrious Member
RE: How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.

Try using PS2.3 adaptive cubic infill option.

Posted : 18/01/2021 8:33 pm
Neophyl
(@neophyl)
Illustrious Member
RE: How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.

Alternatively try something like this attached 3mf project file. 

Attachment removed
 
It uses a height range modifier to control the infill.  Higher cubic on top of lower cubic works quite well.  I also increased the top and bottom layers to remove any infill in the lower floor area as low infill there would also mean lots of big briidges which will almost certainly sag and will probably cause poor top surface for the floor.  By making it solid it should print nicer.  Of course you could always reduce the top/bottom layers and use another height range modifier on the floor area to make there a higher infill section too.
Posted : 18/01/2021 9:03 pm
Magical Terry
(@magical-terry)
Eminent Member
Topic starter answered:
RE: How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.

@neophyl

Thanks I tried this but it didn't appear to make any difference at all - just infill from top to bottom at same %

Posted : 18/01/2021 9:07 pm
Magical Terry
(@magical-terry)
Eminent Member
Topic starter answered:
RE: How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.

Just saw your second post I'm going to give that a go, thanks

Posted : 18/01/2021 9:46 pm
towlerg
(@towlerg)
Noble Member
RE: How would you print this with as little infill as possible? It's a wall designed to be knocked over so light weight is better.

May be stating the obvious but you're not limited to setting infill to 5% steps. You'll need to pick infill pattern carefully eg gyroid at 1% provides no support.

Plus remarks by other posters, variable infill will raise the center of gravity, thus falling over easier.

Posted : 19/01/2021 9:25 am
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