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Tool Change: <Command grasp called with invalid argument>



I have a problem wit the simulation of my kinemtic model. When I press play there is the message "Command grasp called with invalid argument" and the tool wasn't loading.


The tool is defined and also think the kinematic model is defined right. But I'm really not shure at all. The ToolChang program is copied from the  folder sim010101_002_mm. I only changed the the first position. I'm not shure if this is actually allowed or what I have to rewrite in this file.


In the Attachement i added a picture of my error.

Thanks for your help.



Accepted by MarkRief (VIP)
‎08-26-2015 04:32 AM

Re: Tool Change: <Command grasp called with invalid argument>

You need a tool mount junction named "S" to make this work.


In addition the axis named "S" is not a NC axis, since it is not a positional axis.

Stefan Pendl, Systemmanager CAx, HAIDLMAIR GmbH
Production: NX10.0.3, VERICUT 8.0, FBM, MRL 3.1.4 | TcUA 10.1 MP7 Patch 0 ( | TcVis 10.1
Development: VB.NET, Tcl/Tk    Testing: NX11.0 EAP, NX12.0 EAP

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Re: Tool Change: <Command grasp called with invalid argument>

Thank you, thank you, thank you ... that was really helpfull. my simulation is working now Smiley Very Happy

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