Kinematica Tolerances

I know we have talked about this before, but I still occasionally run
into problems with kinematic tolerances being too high. I know the
model isn’t overconstrained, however I don’t know how to solve the
problem or what the issue is. If I set the KinematicTol = 0.4, the
model runs perfectly fine. Without the KinematicTol set, I can’t even
SetInitialConditions. Any suggestions about how to troubleshoot? I’m
uploading the model.

Thanks,
Sarah

Hi Sarah

Using a KinematicTol=0.4 of is much too high this would allow kinematic
errors of 0.4 meter.

I have made made quite a few changes and addtions to your model and it
now runs kinematically without problems i belive and with a normal
kinematic tolerance. It has been uploaded af PA-AnybodySup.zip

Please search for AnyBodySup to find the locations of the changes

In the JointsAnd Drivers.any there are several chanegs most notetably
the changes in the driver of the metatarsals and elbow. Furthermore in
several occasions the first refframe in the AnyKinLinear’s where a free
floating marker not a human one. Writing Ref=0 will then use the ref
system of the freee floating marker which is orientated as the global
ref frame. So at several locations the ref frames has been switched
around.

Initial positons has been introduced for the markers, this is necessary
to make it run.

Hope it all made sense otherwise please write again.

Best regards

Søren AnyBody Support

— In anyscript@yahoogroups.com, “Sarah R. Sullivan” <sarsulli@…>
wrote:
>
> I know we have talked about this before, but I still occasionally run
> into problems with kinematic tolerances being too high. I know the
> model isn’t overconstrained, however I don’t know how to solve the
> problem or what the issue is. If I set the KinematicTol = 0.4, the
> model runs perfectly fine. Without the KinematicTol set, I can’t even
> SetInitialConditions. Any suggestions about how to troubleshoot? I’m
> uploading the model.
>
> Thanks,
> Sarah
>