Dynomotion

Group: DynoMotion Message: 11635 From: Toby Rule Date: 6/3/2015
Subject: g93 mode with rotational axes
Hello,

I am using KMotion 4.31f for a 5-axis CAM application.  The CAM software generates g-code with G93 inverse-time mode commands.  We found that when running commands that drive both the linear and rotational axes (x and a, for instance) the inverse-time commands were not executing at the expected rate, even though the expected rate of the a axis was well below the maximum speed.  

The following sample code demonstrates this behavior.   Can you explain this? 


g0 x0 y0 a0 b0
g93 
g1 x1 F30 (takes 2 seconds)
g0 x0 
g1 a180 F30 (takes 2 seconds)
g0 a0
g1 x1 a0.180 F30 (takes 2 seconds)
g0 x0 a0
g1 x1 a180 F30 (TAKES 360 SECONDS)
m2

Thanks,

Toby

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Group: DynoMotion Message: 11698 From: Tom Kerekes Date: 6/14/2015
Subject: Re: g93 mode with rotational axes
Hi Toby,

Sorry for the delay.  We are able to reproduce this.  You are correct it is a problem.  It will take some time to come up with a fix. 

Regards

TK