Should I be careful with very small models?
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I was trying the blender "precision modelling" tutorial for 608 bearing with SU8 to see if I could and to learn along the way ( http://www.rab3d.com/tutorial.html ) and I came across a couple of issues that I wanted to check where SU issues or user issues (ie my fault) The entire model is only 7mm wide and I had the model precision set to mm and 3 decimal places or precision but I found some things didn't work.
- The Curve tool wouldn't really work, I couldn't create a curve that small
- FollowMe run on a complex face lost a lot of it's complexity and just spun the outline.
I ended up getting around these with the rotation tool after scaling up by x10 (and still having problems with curve and follow me). Did I hit an SU limitation?
Got done though
These are great tutorials and the guy who puts them together is, well, Precise!
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@pdwyer said:
I ended up getting around these with the rotation tool after scaling up by x10 (and still having problems with curve and follow me). Did I hit an SU limitation?
Yes, it is a limitation and you got the workaround right.
In my workflow I generally model in centimetres. When I need to model such small things, I switch to metres but still go on as if I were modelling in cm (as an input) which results in a 100x scale model which I can rescale at the end.
You can also try this method (so that you can avoid calculating all the time).
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Cheers! Good to know it was the 'paintbrush' this time and not the user
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Nice work on those bearings.
I thought I would add a little tip I've found useful. If I am drawing something that will end up with the tiny faces problem, I will make a component before I do whatever it is that would create those holes. Then I make a copy and move it off to one side. I scale that copy up by a factor of 100 or maybe more and edit it as needed. When I've finished, I close the giant component and delete it. This tricks SketchUp into creating the tiny faces and I don't have to scale back down. I'm working in decimal inches so I can't do what Csaba does quite so easily.
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@dave r said:
Nice work on those bearings.
I thought I would add a little tip I've found useful. If I am drawing something that will end up with the tiny faces problem, I will make a component before I do whatever it is that would create those holes. Then I make a copy and move it off to one side. I scale that copy up by a factor of 100 or maybe more and edit it as needed. When I've finished, I close the giant component and delete it. This tricks SketchUp into creating the tiny faces and I don't have to scale back down. I'm working in decimal inches so I can't do what Csaba does quite so easily.
That is an excellent idea.
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Nice idea!
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