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[Jan Stránský <question657126@xxxxxxxxxxxxxxxxxxxxx>]

Question #657126 on Yade changed:
https://answers.launchpad.net/yade/+question/657126

Jan Stránský proposed the following answer:
Ok, then we comes back to the definition of "seen moving" :-) you can
clearly see from text output that the displacement is continuously
increasing (in its absolute value). Is that "seen moving"? But visually
the hammer **seems to be** stationary.

a few computing:
dt = 1.4e-6
vel = 0.005
dst = 0.02 # distance between cylinder and hammer
time = dst/vel # virtual time of hammer free flight
nSteps = time/dt # = 2857142 # number of time steps of hammer free flight

on my laptop, I run roughly 600 iterations/s. So I would have to wait
2857142/600=4761 seconds to see the hammer first touch the cylinder :-)

To decrease this time, you have several options:
- increase of hammer velocity
- decrease the initial gap between hammer and cylinder

cheers
Jan

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