Shapeways: Bring your creativity to life in 3D

Shapeways: Bring your creativity to life in 3D http://www.shapeways.com/forum/index.php Shapeways: Bring your creativity to life in 3D Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=55424&th=11204#msg_55424
I have to check whether a complex shape will balance properly.

Can somebody advice how to find the center of gravity of an object (before actually printing it)?

I use Blender and can handle Netfabb.

Greetings
Dragoman]]> Dragoman 2012-10-16T07:51:25-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=55464&th=11204#msg_55464 Not sure if that is a feature of Blender. The cad software I use has a checkbox for it, and it sure is handy for pendants and things that hang. Do you have any cad software available?
bvr]]> bvr 2012-10-16T23:12:20-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=55469&th=11204#msg_55469
Keith
]]> Fredd 2012-10-17T01:42:26-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=55604&th=11204#msg_55604
I installed Meshlab and I got it to work. On some test cases, the CG seem to be where I expect it to be. Razz

Greetings
Dragoman]]> Dragoman 2012-10-18T18:51:34-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=56701&th=11204#msg_56701
Bart]]> bartv 2012-11-12T15:02:58-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=56715&th=11204#msg_56715 Fredd wrote on Wed, 17 October 2012 01:42
Actually I think Meshlab can detect it. Import your model, click Filter/Quality Measures and Computations/Compute Geometric Measures. Then click show layer dialog icon. Looks like a sheaf of papers(It is under the Window in the top header) Center of mass looks like what you are looking for. Plus gives bounding box dimensions, surface area and volume. Lots of goodies, besides it being free. Smile

Keith

A most excellent top tip

Thanks

Paul

stop4stuff

]]> stop4stuff 2012-11-12T17:33:41-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=57140&th=11204#msg_57140
we thought this tip was good enough to share with a larger audience and turned it into a blogpost!

http://www.shapeways.com/blog/archives/1771-Quick-Tip-Findin g-the-Center-of-Mass-of-a-Model.html

Thanks again Smile

Bart]]> bartv 2012-11-20T11:39:39-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=57168&th=11204#msg_57168 Oh well, I am glad it could be of some help, and thanks.

Keith]]> Fredd 2012-11-20T18:12:27-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=59163&th=11204#msg_59163 ]]> Plumguy 2012-12-24T14:02:02-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=59167&th=11204#msg_59167 Bigg news though!!! Blender 2.65a release has an option to move the origin to the center of mass, which is the same thing. Do this in object mode from the tool panel. Smile

]]> Fredd 2012-12-24T17:20:57-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=59908&th=11204#msg_59908 Fredd wrote on Mon, 24 December 2012 17:20
Bigg news though!!! Blender 2.65a release has an option to move the origin to the center of mass, which is the same thing. Do this in object mode from the tool panel. Smile

Sweet, thanks for that tip!]]> roofoo 2013-01-09T14:32:23-00:00 Re: Center of gravity? http://www.shapeways.com/forum/index.php?t=rview&goto=62264&th=11204#msg_62264 This should be an important feature in all 3d apps imo.

For the Rhino users, select object > Analyze/ Mass properties/ Volume Centroid.

I've been working on some balancing acts myself...dunno how well this actually works, but will know more when my next shipment arrives! Wink

]]> Tigermoth 2013-02-17T22:47:28-00:00