[Emc-developers] Axis velocity limits

[andy p. <bod...@gm...>]

Non-trivial configs again.

Is the software (in any branch) meant to limit the trajectory speed to
stay within axis limits during jogs?

Someone on the forum is using a 5-axis setup adapted from the 5axis demo.

He gets a following error on the linear axes when jogging the rotaries
in World mode.

To see the issue (or what I think is the issue) you can use the 5axis
demo config.

In joint mode jog joint 4 to horizontal.
Switch to world mode.
if it won't let you switch then halcmd setp halui.joint.3.home 1 and
the same for joints 6 and 7.

If you now jog (continuous)  the C axis then everything dances around
the tool point in a most satisfying way in the Vismach model but a
halmeter on axis.0.velocity-cmd will show it moving much faster than
the axis limit in the INI file.

Reducing the linear  jog speed does slow the rotation.

The behaviour appears to be the same (or at least similar) in
joints_axes3 even though there was a recent commit that looked like it
might fix it.

Are there any workarounds? For example is a wheel-jog expected to work
better? I am prepared to talk him through switching to JA3, but only
if that is likely to fix something.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto