Projecting Measured Point

Advanced techniques applicable to any version of CMM-Manager
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JNorton
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Projecting Measured Point

Post by JNorton » Tue Jun 11, 2019 2:00 pm

I need to project/transform a measured point 179.2725° around the Z-axis and take a measurement between the transformed point and the original measured point. Is this possible?

I'm using CMM Manager 3.8 Sp1

Thanks!

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myork1967
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Re: Projecting Measured Point

Post by myork1967 » Tue Jun 11, 2019 2:35 pm

Under the constructions for point you have an option to move a point along an axis. It creates a 2nd feature....try that.

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myork1967
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Re: Projecting Measured Point

Post by myork1967 » Tue Jun 11, 2019 2:35 pm

Under the constructions for point you have an option to move a point along an axis. It creates a 2nd feature....try that.

JNorton
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Re: Projecting Measured Point

Post by JNorton » Tue Jun 11, 2019 4:30 pm

Thanks for the reply. That creates a second feature but it functions independently of the measured geometry of the original point and remains static no matter where the measured point is. What I need the second point to do is rotate around the Z-axis 179.2725° maintaining the radial distance from center of the original point. I have a sector gear that has an odd number of teeth and I need to simulate a measurement over two pins that fit inside of opposite teeth; but since I have an odd number of teeth the over-pin measurement will be offset slightly to simulate the nearest theoretical gear tooth opposite the measured one. I'd include screen caps but ITAR regs and such keep me from doing that.

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medupriest
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Re: Projecting Measured Point

Post by medupriest » Wed Jun 12, 2019 9:54 am

if you construct a point at the centroid of the feature, then right click on that construction and select "Transform". Then you can enter in the angle of rotation, select the current reference frame, and select make 1 copy.

JNorton
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Re: Projecting Measured Point

Post by JNorton » Wed Jun 12, 2019 11:08 am

That worked! Thanks!

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Re: Projecting Measured Point

Post by Mycakers » Thu Sep 12, 2019 11:24 am

I had a similar question about this (which was answered by medupriest). I'd also like to know if I could do this same thing to obtain a distance? I have a pulley that I create a circle tangent from two lines that make a groove. Print calls for diameter over pins. I do realize the print specifically calls for a micrometer check over the two specified pins. Theoretically, could I translate this tangent circle 180 deg and use max distance to get a ball park number? It is not a value that I would ever send to a customer.

TIA

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medupriest
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Re: Projecting Measured Point

Post by medupriest » Mon Sep 16, 2019 11:04 am

on a straight pulley (no bevel or helix) I would think the result would be accurate. We do similar constructions when we need to get a theoretical gauge ball height seated in a cone.

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