Welcome to the moments of "DOH": http://forums.sketchucation.com/viewtopic.php?f=15&t=17315 Each of us has something to add there...

@gistman said: onzki... So what did you end up getting? Hi there.. I ended up with Dell Precision T5500 (Xeon X5690, 3.46 Ghz 12MB Cache, 12GB DDR3@1333Mhz, single Quadro 4000 graphics card, 1.5TB Sata, 21.5" Dell monitor). I guess it's an enhanced T5500 because the specs is better than T7500, though the chasis is T5500. (I wonder why:) Got it for about 4.2K USD from a Dell authorized dealer in here HK. I've been using if for two weeks now and so far I think it's performing better than my recent T3500 in a way that it's more stable (lesser crash and bug splats) and computes things smoother (seen on progress bar of my common procedures like "flatten," "joint push/pull," "round corners", sandbox features, and others (obviously I'm not a techie as evident with how I rate it:). By the way, as of this posting, Xeon X5690 ranks only at 5th place among other fast CPUs http://www.cpubenchmark.net/cpu_lookup.php?cpu=Intel+Xeon+X5690+%40+3.47GHz , and the i7-3690X on first in rank is a way lot faster and cheaper, unbelievable check it out.

@gaieus said: Exactly. The polygon tool works just like you described. You can activate it from the Draw menu or activate the toolbar it is in from the View > Toolbars menu Thanks so much, I'll try it

@onzki said: ... I guess I must upgrade. this may work too. Norbert

@earthmover said: I'd prefer a Hover Face select tool which you could drag across and select every face it touches, then just hit delete. Sounds interesting. I'll check it too. Most of my work are imported from a dirty layered CAD (dwg). Most of the time it's rush so I got no time to re create new layered outline. I just erase unnecessary stuff in SKU. I guess this is a big wish but who knows, maybe it'll be out sometime. Cheers!

Thanks for the explanation. I was just curious because layers don't isolate entities from each other in SketchUp. They only control visibility of those entities.

I agree, I was just pointing out the difference, and why he may be having trouble. If you intersect spheres incorrectly you will get a jagged line. [image: u4ZN_Sphere.JPG]