Thank you very much. Those examples should be more than enough to help me get started.
On Thursday, February 22, 2024 at 9:25:54 AM UTC-6 [email protected] wrote: > I don't know what you are trying to do: in your latest example 'shaft' and > 'base' have two links pointing in two different directions. Did you want to > link to ground instead? > Moreover, the motor already provides the revolute joint embedded. So you > are duplicating the joint. > > And also, you enabled collision straight away: in this case it's not > really needed and I would disable it for now. > > I strongly recommend you to start from demos and then add on top of them. > BTW, by pressing the 'i' button of the keyboard during simulation you can > get a panel in which you can enable some settings. > > Here is the documentation about links and motors (depending on your > PyChrono version there might be some differences): > https://api.projectchrono.org/development/links.html > https://api.projectchrono.org/development/motors.html > > Here some useful demos: > > https://github.com/projectchrono/chrono/blob/main/src/demos/python/mbs/demo_MBS_crank_plot.py > > https://github.com/projectchrono/chrono/blob/main/src/demos/python/mbs/demo_MBS_motors.py > > Il giorno giovedì 22 febbraio 2024 alle 01:30:39 UTC+1 T-Lind ha scritto: > >> I've also set up this simpler example here >> <https://github.com/T-Lind/chrono-sim/blob/master/just_motor.py>: >> [image: Screenshot 2024-02-21 182758.png] >> If you can help me figure this out, I'd be more than happy to write >> documentation related to this example for Project Chrono. >> On Wednesday, February 21, 2024 at 5:45:41 PM UTC-6 T-Lind wrote: >> >>> "the "nothing seems to work" means that the rotating axis is not >>> matching your expectations?" - Correct >>> >>> My assembly goes from looking like this: >>> [image: Screenshot 2024-02-21 173829.png] >>> to this distorted figure: >>> [image: Screenshot 2024-02-21 173917.png] >>> I'm not entirely sure how to display link frames or the CoG, even after >>> looking around for it. And I did look at quite a few of the Pychrono demos >>> (particularly the ones involving motors), but they all seem to use an >>> outdated version and many do not work. In this >>> <https://github.com/T-Lind/chrono-sim/blob/master/rigid_bodies.py> >>> program I made, a ball is thrown at a cylinder, knocking it over. >>> [image: Screenshot 2024-02-21 174115.png] >>> Are there any up-to-date resources you'd recommend looking at (using >>> PyChrono, preferably)? I want to avoid wasting your time here. >>> >>> Thank you for your help! >>> >>> >>> On Wednesday, February 21, 2024 at 2:26:24 PM UTC-6 [email protected] >>> wrote: >>> >>>> Hi T-Lind, >>>> the "nothing seems to work" means that the rotating axis is not >>>> matching your expectations? >>>> Can you show a picture? Maybe one with CoG drawing enabled, one with >>>> Link frames enabled? >>>> >>>> Why don't you try with something simpler first? Without many rotations >>>> in between? >>>> We also have plenty of demos that surely cover also this simple example. >>>> >>>> Dario >>>> >>>> Il giorno mercoledì 21 febbraio 2024 alle 03:58:21 UTC+1 T-Lind ha >>>> scritto: >>>> >>>>> Hi there, >>>>> >>>>> Hopefully this isn't too much trouble, I'm just getting into Project >>>>> Chrono. >>>>> >>>>> I'm using PyChrono and am testing out this program here >>>>> <https://github.com/T-Lind/chrono-sim/blob/master/motor_assembly.py> (the >>>>> STEP file is small so I committed it to GitHub). It's just a simple test, >>>>> but I'm trying to get the shaft to rotate along the same cylindrical axis >>>>> of the motor. >>>>> >>>>> I tried a bunch of different configurations, but nothing seems to >>>>> work. Any help would be appreciated! >>>>> >>>>> >>>> -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/8968b05f-bc9e-4c82-ad34-3f7fdeb6ecc7n%40googlegroups.com.
