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.
 

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)
Active Member

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 2 months ago 4 times by Magical Terry
Posted : 18/01/2021 8:19 pm
Neophyl
(@neophyl)
Noble Member

Try using PS2.3 adaptive cubic infill option.

Posted : 18/01/2021 8:33 pm
Neophyl
(@neophyl)
Noble Member

Alternatively try something like this attached 3mf project file. 

 
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.
This post was modified 2 months ago by Neophyl
Posted : 18/01/2021 9:03 pm
Magical Terry
(@magical-terry)
Active Member

@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)
Active Member

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

Posted : 18/01/2021 9:46 pm
towlerg
(@towlerg)
Prominent Member

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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