RE: [CAD_CAM_EDM_DRO] Re: CAD/CAM on Sketchup

Hi Neil,



Interesting, can you tell me where to set that resolution? Every time I've
checked I've been told .01 is the max.



http://www.google.com/support/forum/p/sketchup/thread?tid=2f57dc94162cdff1
<http://www.google.com/support/forum/p/sketchup/thread?tid=2f57dc94162cdff1&
hl=en> &hl=en



Below is from the above link on the SketchUp support forum. Answer posted by
John Bacus, Project Manager for SketchUp.



Hi guys,



As you can imagine, we do care quite a lot about precision/accuracy in
LayOut's dimensioning system. In fact, we limit the precision for decimal
inches to .01" because we can't certify that values in the thousandths of an
inch are correct in all cases. For the majority of our users, this isn't an
issue- they are doing either architectural or furniture scaled work where
thousandth of an inch are just not relevant. But I can easily understand how
unsatisfying this is for those working at a machinist's tolerances.



Unfortunately, this isn't just an issue in LayOut. SketchUp can't really
work to .001" precision either. As you approach entities of .001" in length
or less, you'll find that faces in the model won't close and SketchUp will
begin reporting validity problems. The only real solution to this is to
scale the entire model up by some multiplier.



nspies: If you haven't already found it, you can limit the precision of your
dimensions in LayOut by choosing 1/8" from the "Precision" menu in the
Dimension Style panel.





hope this helps-

john





From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Neil Gillies
Sent: December 24, 2010 4:03 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: CAD/CAM on Sketchup






Hi

> Maximum
> resolution is .01 inch so to use it for anything much in machining you

will

> need to play games with scaling it up then correcting by 10x to do

anything.

> Big pain in the butt.

Yes, you're correct in that the resolution isnt really high, but not THAT
low :-))

It's actually 0.001" or 25.4 microns/0.0254mm for the rest of the world :-)

Perfectly adequate for aeromodelling/woodwork etc in general 'though - and
probably most other hobby stuff I should think =;-)
Also doesn't need a primary degree in astrophysics to drive it - my
granddaughter (she's four) can create 3D dolls houses without any effort !

Cheers

Neil





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