What is still wrong with this model?

What is still wrong with this model?

rpsalas
Enthusiast Enthusiast
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Message 1 of 11

What is still wrong with this model?

rpsalas
Enthusiast
Enthusiast

I know this is not a 3d printing forum, but my problem might be a defect in the model itself. Can you check the model and see if you can tell why it's not printing? All I get is the rectangular thin plate and the rectangular outline "frame". The geometric pattern is not printing!

 

Screenshot 2025-09-22 at 3.02.36 PM.png

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Accepted solutions (3)
237 Views
10 Replies
Replies (10)
Message 2 of 11

wersy
Mentor
Mentor

The lines are 0.25 mm.
You would need a 0.25 nozzle to be able to print it.

 

wersy_0-1758571004573.png

 

 

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Message 3 of 11

davebYYPCU
Consultant
Consultant

Without checking your files

 

sounds like nozzle is bigger than wall thickness.

 

Might help…..

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Message 4 of 11

Warmingup1953
Advisor
Advisor

FDM? What nozzle size?

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Message 5 of 11

wersy
Mentor
Mentor
Accepted solution

It works if you set extrusion width to 0.24 mm.
But it won't be particularly accurate.

 

wersy_0-1758572509153.png

 

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Message 6 of 11

rpsalas
Enthusiast
Enthusiast

Thanks all. That was it. I had a 1mm dimension but then I scaled it down forgetting that the wall would shrink. 

Message 7 of 11

wersy
Mentor
Mentor

So what you are going to do.
Scale up.
Reduce extrusion width.
Change nozzle.

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Message 8 of 11

wersy
Mentor
Mentor
Accepted solution

Just printed a small part.

It works with nozzle 0.4, ew 0.24, lh 0.14.

As expected, not so accurate.

 

ew 0.24 nozzle 0.4.jpg

 

ew 0.24 nozzle 0.4a.jpg

 

Try it out, you'll be surprised how good it actually looks with a little distance.

Message 9 of 11

rpsalas
Enthusiast
Enthusiast

I removed the scale-down that caused the problem and the print worked.

 

There are things in these answers which are beyond my experience...

 

I've not experimented with different nozzles.

I've not experimented with reducing the extrusion width

I don't know what"ew" and "lh"  are in "It works with nozzle 0.4, ew 0.24, lh 0.14." so I've not tried that

 

Still learning!

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Message 10 of 11

rpsalas
Enthusiast
Enthusiast

Nice pattern though, right?

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Message 11 of 11

wersy
Mentor
Mentor
Accepted solution

@rpsalas  schrieb:

Nice pattern though, right?


Yes it's nice 🙂

ew = extrusion width or line width.
This is a width that can be adjusted independently of the nozzle diameter.

lh = layer hight

Usually a value that is half the print width.

With a 0.4 nozzle, you can easily print with ew 0.3 and 0.6 mm.

 

It is not absolutely necessary to always change the nozzle.
I have been printing everything with a 0.5 nozzle on my self-built printer for 13 years 

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