Prusa slicer giving insane filament and print estimates [Ex: ~7 Kg playing card box]
 
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Prusa slicer giving insane filament and print estimates [Ex: ~7 Kg playing card box]  

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Derek P.
(@derek-p)
Member
Prusa slicer giving insane filament and print estimates [Ex: ~7 Kg playing card box]

So I wanted to make a card box for a print and play card game. 

I found this model on Printables and printed it with the .6 Nozzle I already had in place. I wasn't very happy with the results but had already swapped to a .4 nozzle and figured I'd just print with the .4 instead of switching. So I went to reslice the box for .4 and was shocked when the print time jumped  from 3 hours to 7. I know there can be a difference, but when I had checked this print before, when printing at the same layer height, there had hardly been a difference. I didn't think much more of it since this is an overnight print but when I went to start it Octo print alerted me that my 800g roll was not enough to cover this small card box. 

When I finally looked I realized the reason the print time was so high was that Prusa insisted this card box was going to use over 8kg of material. 

The original print with .6 nozzle

What I tried to print this time around

What prusa slicer shows - This was a redownload of the file. Brand new

And now it is saying this lil 41 x 63 x 22mm duck will use 980g of filament?!

Has anyone run into this?

Posted : 25/08/2024 7:43 am
Derek P.
(@derek-p)
Member
Topic starter answered:
RE: Prusa slicer giving insane filament and print estimates [Ex: ~7 Kg playing card box]

Figured it out. I had set the filament extrusion multiplier to 99 instead of .99 😀

Posted : 25/08/2024 5:08 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Prusa slicer giving insane filament and print estimates [Ex: ~7 Kg playing card box]

That should have given you a sanity warning. 

Regards Joan.

 

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 : 25/08/2024 5:44 pm
Derek P. liked
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Prusa slicer giving insane filament and print estimates [Ex: ~7 Kg playing card box]

There wasn't a sanity check, when I did the same thing....    
I passed the issue to the developers, and they added a sanity check...   I hope it's still active...

Joan

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 : 25/08/2024 9:24 pm
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