Today I Learned about the DMIS Arc command

Command Syntax:

F(name)=FEAT/ARC, dir, coord, x(r), y(a), z(h), i, j, k, rad, a1, a2

Parameters:

dir = INNER this is a inside arc,  OUTER this is an outside arc ( these are partial circles)

coord = CART rectangular coordinates, POL polar coordinates

x(r) = the nominal X coordinate (R-Radius if the coord option is POL) position for the arc

y(a) = the nominal Y coordinate (A-Angle if the coord option is POL) position for the arc

z(h) = the nominal Z coordinate (H-Height if the coord option is POL) position for the arc

i = X vector component of the plane of the arc

j = Y vector component of the plane of the arc

k = Z vector component of the plane of the arc

a1 = start angle of the arc. The start angle is defined by the current coordinate system

a2 = end angle of the arc. The start angle is defined by the current coordinate system

The command syntax should look something like this:

F(ARC1)=FEAT/ARC,INNER,CART,-4,-3,-0.1,0,0,1,0.5,0,180

This example defines an arc to be measured at X = -10, Y = -2.0, Z= -0.10 as shown. The arc is in the Z work plane so the vector is 0, 0, 1. The arc is 0.5 (or a diameter of 1) and will start at 0 and probe a 180 degree angle.  Mark Boucher Consulting, a CMM Quarterly company, offers the best training in the business whether you need onsite, over the web training or programming. Click on the image above to view our services.

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