[Ga...] Posted April 10, 2019 Share Posted April 10, 2019 I'm having trouble figuring out how to run a program reliably. I have a cylindrical part with two bearing surfaces which need to be coaxial to each other. My problem is I can't figure out how to align Calypso to the proper axes. I remember seeing a post with a similar issue but can't seem to find it. But I've attached an image of what I'm talking about. My -Z probe is aligned to the Y axis. Which tells me my alignment is rotated somehow. How can I achieve the correct orientation to the machine to run this part consistently? Thanks for any help.example.JPG Link to comment Share on other sites More sharing options...
[De...] Posted April 10, 2019 Share Posted April 10, 2019 Hard to tell, you would be better off to show a screenshot of your Base Alignment screen or explain what your using for the base alignment. That said it looks like your spatial is set to X+ when it should have been set to Z+ Link to comment Share on other sites More sharing options...
[Ga...] Posted April 10, 2019 Author Share Posted April 10, 2019 So I remembered someone saying to leave spatial and planar empty. That's what I have at the moment. If i set spatial to Z+ will I have to redo my clearance planes and do a manual alignment? Currently the alignment is based off the datum A cylinder (Z and Y) with the X based on a plane at the bottom of that boreexample2.JPG Link to comment Share on other sites More sharing options...
[Me...] Posted April 10, 2019 Share Posted April 10, 2019 NEVER leave spatial blank unless you want to measure your part relative to the machine alignment. It's ok for the planar rotation to be blank on a cylindrical part if you don't need to measure anything that is clocked rotationally and using the machine axis is ok. What is the reason for making your alignment different than the machine axis? If you have a tube on it's side and the machine X axis is the axis of the tube, then make your spatial alignment to X+ or X- , not Z. It makes programming a lot easier and less confusing for clearance planes, IMO. Link to comment Share on other sites More sharing options...
[Te...] Posted April 10, 2019 Share Posted April 10, 2019 Spatial should be the A or better yet the 3d Line created from A and B, you do not want a Planar unless something actually stops the rotation of the part (A clocking hole). DO NOT use the Plane as your planar or you will really mess the alignment up. Link to comment Share on other sites More sharing options...
[Ga...] Posted April 10, 2019 Author Share Posted April 10, 2019 Yes, this part is resting along the X axis of the machine. I will set the spatial to +X and see how that goes. If I scan these bores, get the 3d line for alignment (Y and Z), how would Coaxiality work? Do I create two new cylinders and recall the points from A and B and then tolerance? Or scan a second time after the 3d line? Circular parts are the bane of my existence... Link to comment Share on other sites More sharing options...
[Ga...] Posted April 10, 2019 Author Share Posted April 10, 2019 Ok, here is where I am. I started a new program, put spatial as +X, scanned the two cylinders, 3D lined. Set alignment to 3d line. Created 2 cylinders A and B recalling the points from the two cylinders, toleranced diameters and coaxiality. Here are my results. Going to check some more parts, but in the meantime, does all this look correct? I suspect that this part is not actually this bad.example5.JPGexample4.JPGexample3.JPG Link to comment Share on other sites More sharing options...
[Ga...] Posted April 10, 2019 Author Share Posted April 10, 2019 I think my 3 circles for the cylinders were a combo of too close together, and being too close to the edges of the bore. Got this Final to pass, so I'm going to call it good for now. Thanks for everyone's help. The spatial alignment trick will come in handy for me. And now I get to go back and update older similar programs! YAY Link to comment Share on other sites More sharing options...
[Ri...] Posted April 11, 2019 Share Posted April 11, 2019 I'd try to stay away from 3d Lines created from Cylinders if at all possible. Use the Step Cylinder feature instead. In addition, measuring Cylinders can be a pain, so always make sure that you are getting as much length of the Cylinder measured as possible. The shorter the Cylinder, the more Circle paths I would add. Link to comment Share on other sites More sharing options...
[Ga...] Posted April 12, 2019 Author Share Posted April 12, 2019 I tried the step cylinder method and added in a few circles on each side. It seems no better or worse than 3d line. Ultimately, I think the tolerances on this part are too tight for what I'm dealing with. A tube with 25mm bores on each side, one is 7mm deep and the other 9.5mm across a distance of 140mm with a 50 micron concentric tolerance. I can't get good repeatable results. Sometimes I'll get 11 microns, and then I'll run the same part again and get 150 microns. Link to comment Share on other sites More sharing options...
[Cr...] Posted April 13, 2019 Share Posted April 13, 2019 I assume you have a loop set on your alignment, correct? Link to comment Share on other sites More sharing options...
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