Odd Lathe Cam behavior

[ThastingsPZBGS]

I'm having weird issues with lathe cam.  Back to front is sometimes front to back.  I'll toggle it back and forth a couple of times and sometimes it will correct itself, sometimes it won't. Things are just acting funny, sometimes in an unclear way or pattern.  Also I was threading and the threading sim was back to front instead of front to back, and it did the finish pass first, working it's way out away from the part.  In the case of the threading it seems it might be at least partially linked to using chuck face as a reference in the setup. I changed the origin reference to something other than chuck face and it seemed to correct it, but it's difficult to tell if that's what did it.

Here's a screencast of the simulation: 

[seth.madore]

Screencast not seen, try attaching the link to it.

Is there a chance that you have the slider in Simulation set to the very left?

 

[HughesTooling]

Is this the screencast? You have the simulation running backwards!

Mark

[seth.madore]

Thanks Mark, I always overlook investigating accounts for their contributions 😕

[ThastingsPZBGS]

Thanks guys. @HughesTooling I had no idea you could run a simulation backwards, any idea how that happened?

[HughesTooling]

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@ThastingsPZBGS wrote:

Thanks guys. @HughesTooling I had no idea you could run a simulation backwards, any idea how that happened?

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The slider that controls the simulation speed was move too far to the left of centre so the sim runs backwards. You must have been adjusting the speed and moved it past the midpoint.

Mark