How can I do this?

[BANDY]

I usually end up checking this on the surface plate but I wonder there is a good way to check this on the CMM . I want to check the location of the intersection of the flange and the radius. The red line on the screen shot. Since the arc is only partial dia, I think I going to need to do this on the surface plate.

[bw_bob]

I'm tried this many times but have had little success getting good or consistent readings. I usually use a video system if possible or the plate method as you mentioned....good luck

[BANDY]

What source of video method ? I am not familiar with that.

[bw_bob]

We have optical comparitors & an ogp smartscope which I use quiet often.

[cmmguy]

I usually end up checking this on the surface plate but I wonder there is a good way to check this on the CMM . I want to check the location of the intersection of the flange and the radius. The red line on the screen shot. Since the arc is only partial dia, I think I going to need to do this on the surface plate.

As Bob said a comparator or Vision system is the very best way to do this...
but on a CMM, you could use very short line segments to find the measurement.


A side note: When you post, use a title that describes the problem. This helps the search function to work better and many times after you post the forum will list similar posts at the bottom that might answer your question... Posts with titles such BEER are of course, self-explanatory.

[BANDY]

I would like to see that smartscope. Where I can find one?

[cmmguy]

Where are you in LA?

[bw_bob]

I would like to see that smartscope. Where I can find one?

Here is their website.

http://www.ogpnet.com/ogpMain.jsp?localeId=1

[BANDY]

Located in Rancho Dominguez. Its Compton really. Almost at the end of the 91.

[cmmguy]

Located in Rancho Dominguez. Its Compton really. Almost at the end of the 91.

Yup, know the area... contact Pacific Inspection in Irvine. They have an OGP system that they can bring out to show you.

949-916-4400

[BANDY]

Thanks for the info!

[Jan d.]

Located in Rancho Dominguez. Its Compton really. Almost at the end of the 91.

Hey, I used to work in that area too. Corner of 119th and Wilmington... Long time ago though... Became a little too hot for us in April 1992. Buidling next door sent up. So we moved away.

Jan.

[Wingman]

I usually end up checking this on the surface plate but I wonder there is a good way to check this on the CMM . I want to check the location of the intersection of the flange and the radius. The red line on the screen shot. Since the arc is only partial dia, I think I going to need to do this on the surface plate.

Hi,
Vision system is probably best thing. If you need to use CMM there is a method that works very well, better than short line segments. Depending on the size of the partial arc you may or may not be able to grab it but it is worth understanding at any rate,
If interested please PM me and I will send you a file.