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quick and stupid question - bridge length  

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hawai
(@hawai)
Reputable Member
quick and stupid question - bridge length

Hi all,

I need a quick reality check regarding the attached print. Are the bridge lengths (about 28mm in the longest diagonal) making any sense?

In a previous iteration of the model I hadn't cut out the middle bits of the posts and hence the bridging wasn't an issue.

 

Apologies for the dumb question, but I have been staring at that model for way too long and I guess I need some external plausibility check.

 

As always, thanks heaps for everybody's time and help.

 

Hansjoerg

Attachment removed
Posted : 24/07/2021 12:23 am
bobstro
(@bobstro)
Illustrious Member
28mm is not a problem

28mm should not be a problem. Max out cooling and test. There will be some sagging but unless the bridged surfaces are visible, it's not a problem.

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 24/07/2021 12:29 am
hawai
(@hawai)
Reputable Member
Topic starter answered:
Thanks

for the quick reply bob,

 

exactly what I needed. The bridges will be well hidden and the next relevant structure is about 3.5mm "above" the bridged area, so any sagging should be evened out by then.

Posted : 24/07/2021 1:30 am
Swiss_Cheese
(@swiss_cheese)
Noble Member

@hawai

 

As Bob has said 28 no problem, I Bridge 50mm only just today messing around, no fuss no muss.

Remember you have the option of changing the Bridging angle if needed, you are not bound by the defaults.

 

Good luck

 

Swiss_Cheese

The Filament Whisperer

Posted : 24/07/2021 1:34 am
hawai
(@hawai)
Reputable Member
Topic starter answered:
stupid mandatory title line

Thanks Mr. Cheese,

I did indeed play around with the angle, but the conceptualisation part of my brain seems to have been on holiday. I only found orientations that resulted either in longer or a larger number of long bridges.

Anyhow, the part is cooking and I will know in a few hours...

Posted : 24/07/2021 2:39 am
ssill2
(@ssill2)
Noble Member
thick bridges

The 2.4 alpha version of the slicer has a thick bridges option too.  I've not done too much with it since I generally don't try to do bridges that far except maybe in a temperature tower.

Posted : 24/07/2021 12:45 pm
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