Author Topic: Sketchup scaling?  (Read 908 times)

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Chris333

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Sketchup scaling?
« on: July 24, 2020, 05:57:36 PM »
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As anyone with Sketchup knows their circle segments are set to 24 and circle end up looking blocky. The work around is to scale up the model make the needed items and then scale it down.

So I took a crappy model that I made just to see if I liked it. I liked it. I redrew the whole thing at x48 scale and made the circle segments 75. The model is perfect and I can save it and export as an .stl. But soon as I scale it down -48 times it wont save.

So how do I fix this?

I currently have it saved at x48, but that is useless to me.

Chris333

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Re: Sketchup scaling?
« Reply #1 on: July 24, 2020, 06:04:08 PM »
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To further explain... The x48 model will save as an .stl and when opened in Netfab to look for problems, it finds none at all.

bbussey

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Re: Sketchup scaling?
« Reply #2 on: July 24, 2020, 06:45:40 PM »
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Try saving the STL at the gigantic size in Sketch-Up and then scale it down in Netfabb.
Bryan Busséy
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Erock482

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Re: Sketchup scaling?
« Reply #3 on: July 24, 2020, 09:54:34 PM »
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agreed with bbussey.

I draw sketchup in full scale, then shrink accordingly in Chitubox

Chris333

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Re: Sketchup scaling?
« Reply #4 on: July 24, 2020, 10:40:38 PM »
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Scaling in Netfabb worked, printing now. Guess I need to add something to the file name so I know it's the wrong scale. Full size in this case was HO, but as a work around I had to scale it up just to add certain items. It just wouldn't scale back down afterwards.

I have been opening the models in Netfabb and fixing anything wrong with Sketchup. This way my final Sketchup export is good and there is no need for Netfabb.

Also since the beginning I've been having problems with the silcer adding strange crap that needed hours of pixel editing to use. This was both the stock slicer and Chitubox.

A few weeks back I downloaded the newest Chitubox and haven't had one single problem with anything since. I wonder if this whole time I had buggy slicers?

Baldylox

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Re: Sketchup scaling?
« Reply #5 on: August 20, 2020, 09:44:21 AM »
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as others have said, design in 1:1, although i still scale in SU.  i have no issues with missing polygons when going to NF then to Chitu.  I use 24 or 50 segments for all circles/arcs in everyone of my models at 1:1, even scaled down they will look just fine.  add anti-aliasing on 4/8 and in N you can print with lower segments too.  low poly works well :D

there are scaling issues when using to few segments at small scale in SU.  Your model likely did not like being scale down with so few segments.  that will cause it to not save.