Helical Arcs - National Instruments NI-Motion User Manual

Helical Arcs

Z
1
1 Side View of Helix
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//Get the command ID, resource ID, and the
error code of the //modal error from the
error stack on the device
flex_read_error_msg_rtn(boardID,&commandI
D,&resourceID, &errorCode);
nimcDisplayError(errorCode,commandID,res
ourceID);
//Read the communication status register
flex_read_csr_rtn(boardID,&csr);
}while(csr & NIMC_MODAL_ERROR_MSG);
}
else// Display regular error
nimcDisplayError(err,0,0);
return;// Exit the Application
}
A helical arc defines an arc in a 3D coordinate space that consists of a circle
in the XY plane and synchronized linear travel in the Z-axis. The arc is
specified by a radius, start angle, travel angle, and Z-axis linear travel.
Linear travel is the linear distance traversed by the helical arc on the Z-axis,
as shown in Figure 6-10.
4
Y
X
2 Top View of Helix
Z
X
Y
2
3 Isometric View of Helix
Figure 6-10. Helical Arc
6-13
Chapter 6 Arc Moves
X
3
4 Linear Travel
NI-Motion User Manual