[Zo...] Posted Wednesday at 01:42 PM Share Posted Wednesday at 01:42 PM I am trying to scan a hole location with the only available probe that is 3mm, (.118) and trying to get into a .148 dia hole. Not much retract distance, I used 0.01 but it should be doable. My probe lands far from getting into the hole and I assume it is another age old clearance issue that I had been struggling with. In the CNC machining world and it's XYZ coordinate system one can designate a point to go to or to go from, like go to the center of the hole, drop in and scan, but in Calypso and never found the logical way to direct motions. I am sure it is me, but it is still an obstacle. I often add in points, but here, I am unable to tell Zeiss just to get into a small hole. Would anyone have an idea how to get into a small hole like shown? My base alignment is shown, and I doubt that the hole location is off by this much, though that is what I am trying to measure, except it maybe off by a few thou, not an 1/8"... Link to comment Share on other sites More sharing options...
[Du...] Posted Wednesday at 01:51 PM Share Posted Wednesday at 01:51 PM What is your clearance distance on the hole? also, it almost looks like the hole is set to an outer diameter instead of an inner, maybe check that. see attached Link to comment Share on other sites More sharing options...
[Zo...] Posted Wednesday at 01:58 PM Author Share Posted Wednesday at 01:58 PM Please sign in to view this quote. My clearance is 0.00, reduced the retract to 0.002 just to have stg there, and I have it set as internal scan Link to comment Share on other sites More sharing options...
[Du...] Posted Wednesday at 02:19 PM Share Posted Wednesday at 02:19 PM How is your base alignment set up? Link to comment Share on other sites More sharing options...
[Zo...] Posted Wednesday at 02:32 PM Author Share Posted Wednesday at 02:32 PM The center dia , as a cylinder, is my X0Y0, the lower surface is the top and the right small hole is my planar, see attached. I also noticed, that even though I call the large diameter my X0Y0, Calypso tells me it is off by 0.091 (???) and I don't know how that is possible, since I am telling Calypso to use that as my X0Y0 reference. Now it makes sense why the probe doesn't drop into the small holes, its off by the 0.091. What can cause that? Link to comment Share on other sites More sharing options...
[To...] Posted Wednesday at 03:38 PM Share Posted Wednesday at 03:38 PM (edited) Where your cylinder intersects plane1 is X0Y0. To prove this, create an intersection of the cylinder and the plane. The X, Y and Z value of the cylinder is located at the trihedron of the cylinder. The reason the X and Y are not reading zero is because the cylinder's origin is 1.45 above the plane, and the cylinder is not perpendicular to the plane as indicated by the A1 and A2 angles. Your .002 retract distance is working against you. You could increase it to help, maybe use what ever your default is. Or, you could start the scan at 180°. But you need to work on the perpendicularity. Edited Wednesday at 03:44 PM 1 Link to comment Share on other sites More sharing options...
[Lu...] Posted Wednesday at 03:52 PM Share Posted Wednesday at 03:52 PM When you run the program, in the top left does it say "current alignment" or the name of the program? I had that issue recently because nobody had told me what the differences were between them. Current alignment wont actually change the alignment, and will instead use the alignment of the last time you had run the alignment. But if it is set to your program name then it will actually measure the alignment and zero it correctly. (if its a manual alignment then it will zero correctly as well) 2 Link to comment Share on other sites More sharing options...
[DW...] Posted Wednesday at 07:13 PM Share Posted Wednesday at 07:13 PM Please sign in to view this username. This is a down and dirty way to get a CNC scan on a hole that may move around a bit, given your retract problems. Copy and paste your circle feature. On the original circle feature, set it up so it is a four point circle, single points. Go to the settings and change it from being measured in CNC to Manual. On your copied circle feature, in the X and Y nominals, change them to the manual circle actuals with a formula. Set your measuring strategy up as a normal scan path in CNC mode. Since you are manually defining the hole in Circle1, Circle2 will never crash during the CNC measurement. 1 Link to comment Share on other sites More sharing options...
[Ma...] Posted Wednesday at 08:06 PM Share Posted Wednesday at 08:06 PM What about tip bigger than hole and get self centered point? 1 Link to comment Share on other sites More sharing options...
[To...] Posted Wednesday at 08:15 PM Share Posted Wednesday at 08:15 PM Please sign in to view this quote. I think Luke might be onto something. 1 Link to comment Share on other sites More sharing options...
[Zo...] Posted Thursday at 02:37 PM Author Share Posted Thursday at 02:37 PM Please sign in to view this quote. I didn't notice the angles, they are supposed to be perpendicular, and yes, that makes a world of difference. I will correct that, thanks Link to comment Share on other sites More sharing options...
[Zo...] Posted Thursday at 02:38 PM Author Share Posted Thursday at 02:38 PM Please sign in to view this quote. Not sure about that, could you elaborate a bit? Link to comment Share on other sites More sharing options...
[Zo...] Posted Thursday at 02:39 PM Author Share Posted Thursday at 02:39 PM Please sign in to view this quote. I had the part name alignment 1 Link to comment Share on other sites More sharing options...
[Ma...] Posted Thursday at 02:59 PM Share Posted Thursday at 02:59 PM Please sign in to view this quote. You can use a bigger tip to find close enough center for smaller tip and measuring exact center. If you can use self centering, then tip should fall in that hole and stop in center of that hole. Link to comment Share on other sites More sharing options...
[To...] Posted Thursday at 03:04 PM Share Posted Thursday at 03:04 PM Please sign in to view this quote. Please sign in to view this username. I was referring to the condition of the cylinder on the physical part. Did you create the intersection of the cylinder and plane? Did the nominals and actual end up being X0, Y0, Z0? Link to comment Share on other sites More sharing options...
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