Search found 16 matches

by bessemermine
06 Sep 2013, 23:53
Forum: General questions
Topic: Problems with many-jointed robot
Replies: 1
Views: 2029

Problems with many-jointed robot

Hello again, I'm having a bit of a problem with joints again, that probably still has its origin in scaling and engine parameters. I've twiddled the settings quite a bit here, but whenever I suppress one problems, I'll come up with another. I recently posted about a two-joint rotational spring & dam...
by bessemermine
27 Aug 2013, 21:09
Forum: General questions
Topic: 2d sliding joint with floor (or plane) ?
Replies: 3
Views: 2885

Re: 2d sliding joint with floor (or plane) ?

OK, some progress. Here's a version where the floor respondable is the part of the whole structure: https://www.dropbox.com/s/e020mfk3czfkj6b/2d%20sliding%20joint%20test%20floor%20as%20parent.ttt That seems like a somewhat odd way of organizing it, but it does seem to work OK, as far as I can tell. ...
by bessemermine
27 Aug 2013, 00:43
Forum: General questions
Topic: 2d sliding joint with floor (or plane) ?
Replies: 3
Views: 2885

2d sliding joint with floor (or plane) ?

I'm interested in putting together a model that uses a 2d sliding constraint. Specifically, I'd like to constrain the end of the spring to be on a surface, such as a plane or just the ground plane, and the other end to be rigidly attached to a shape (no spherical joint, cantilevered joint effectivel...
by bessemermine
21 Aug 2013, 23:50
Forum: General questions
Topic: Jittery motion from joints; scale issue?
Replies: 7
Views: 4859

Re: Jittery motion from joints; scale issue?

Oh, shoot, sorry about that! The "2joint_leg_test" is the big, not-to-scale model that I did first, and I posted the wrong link, and didn't link to the right scene at all. No wonder it wasn't reproducible. This should be the right one: https://www.dropbox.com/s/fmhbtl3d90wiswd/reduced_leg_small_scal...
by bessemermine
21 Aug 2013, 19:39
Forum: General questions
Topic: Jittery motion from joints; scale issue?
Replies: 7
Views: 4859

Re: Jittery motion from joints; scale issue?

3.0.4 32bit, running on 64bit Windows 7.
Here's a rendered video: https://www.dropbox.com/s/nyz43gukq3kr7 ... jitter.avi

Are there some settings that are not saved into the scene file, and are only an application setting, that could be different between our setups?
by bessemermine
20 Aug 2013, 19:06
Forum: General questions
Topic: Jittery motion from joints; scale issue?
Replies: 7
Views: 4859

Re: Jittery motion from joints; scale issue?

Well, that's good news about the high fidelity physics engine. How about PhysX? But that's another game engine, and it might be more targeted to getting it done "fast" instead of "right". Here's the phenomenon that I'm referencing: http://i.imgur.com/XssP4JV.jpg (also shows the current setup for dyn...
by bessemermine
20 Aug 2013, 01:31
Forum: General questions
Topic: Jittery motion from joints; scale issue?
Replies: 7
Views: 4859

Jittery motion from joints; scale issue?

I created a simple model with two revolute joints (and one prismatic joint, just for testing), that is showing a lot of small, nosy oscillations in the simulation. The two pin joints are supposed to be modeling torsional springs and dampers. The whole model is intended to model a small leg for a dev...
by bessemermine
25 Jun 2013, 01:17
Forum: Bug reports
Topic: High resource usage while idle?
Replies: 3
Views: 3723

Re: High resource usage while idle?

Any expected availability date for v3.0.4 ? I have found a sort-of workaround, by a driver-level hack for my NVidia card that allows for a global frame limiter, but there's a lot of small usability quirks with the OS and other programs associated with using this hack. And for my laptop, that only ha...
by bessemermine
21 May 2013, 01:17
Forum: Bug reports
Topic: High resource usage while idle?
Replies: 3
Views: 3723

High resource usage while idle?

It seems like V-REP is using a fair amount of resources while just sitting idle, without a simulation running or paused. This is particularly noticable on my desktop computer, where I have a GPU with a fan in it, which can clearly demonstrate the current load level via the noisy fan. I'd guess that ...
by bessemermine
30 Apr 2013, 05:39
Forum: General questions
Topic: Contact Callback for adhesive contact?
Replies: 3
Views: 4325

Re: Contact Callback for adhesive contact?

So, after reading through a lot of the documentation, I'm not totally sure what the right implementation approach is. I'll try it a very ways, but I had some follow-up questions: For the first method, using a contact callback script or plugin: It's not clear if I could do a simple "adhered" & stop m...