[Ma...] Posted March 16, 2021 Share Posted March 16, 2021 So question (obviously), I am trying to measure the angle of 2 holes on a round part. Now to do this I normally do a 3d line from the OD to the hole (so 2 seperate lines), but sometimes the angle is off because they aren't the same height, and the lines have an angle on the Z (or in my case Y because the round part is being fixtured on its side). So when this happens, I project the line up to the surface of the part and more often then not, it corrects my problem. Is there any way to correct this? I have to do this with a total of 16 holes and I simply don't feel like programming a 3d line to each, then projecting said line to the surface, it's pretty time consuming. Before you ask, no, I cannnot use pattern (I don't think) because they are not all equally spaced. Link to comment Share on other sites More sharing options...
[Er...] Posted March 17, 2021 Share Posted March 17, 2021 Maybe... Resources-Feature Representation Change it to Cylindrical Result element-subtract angles to get the between Link to comment Share on other sites More sharing options...
[Ma...] Posted March 17, 2021 Author Share Posted March 17, 2021 I'll try that out, thank you, Erik. Link to comment Share on other sites More sharing options...
[Ma...] Posted March 17, 2021 Share Posted March 17, 2021 Holes in a pattern don't need to be equally spaced. Link to comment Share on other sites More sharing options...
[Ma...] Posted March 17, 2021 Author Share Posted March 17, 2021 They don't? How do you check them if they are different? I have some that are on the same bolt circle, however a group of 4 is 33° apart from each other while the other 2 sets of 3 are 30° apart from eachother, however they are a different angle away from the axis'. Link to comment Share on other sites More sharing options...
[Ma...] Posted March 18, 2021 Share Posted March 18, 2021 Please sign in to view this quote. Using rotational pattern you can find a common denominator angle for all the holes, then use "exclude indexes" to specify the ones that don't actually have a hole on your part. If all the holes are located in whole number of degrees for example you could specify 360 holes 1 degree apart and exclude all of them except the ones you want to measure. Alternatively, you can use "Pattern with position list" and type in the coordinates of each hole. Link to comment Share on other sites More sharing options...
[Mi...] Posted March 19, 2021 Share Posted March 19, 2021 Have you tried using "angle between features" on the holes themselves? It will project them to the nearest plane of the Base Alignment and report their angle with respect to the origin. Link to comment Share on other sites More sharing options...
[Ma...] Posted March 20, 2021 Author Share Posted March 20, 2021 Please sign in to view this quote. Link to comment Share on other sites More sharing options...
[Ma...] Posted March 20, 2021 Author Share Posted March 20, 2021 Please sign in to view this quote. I have tried doing this in the past and it didn't give me accurate numbers, which is what led me to start litterally spelling out to Calypso what I need in terms of creating lines, projecting the lines to the surface and going from there. All of my angles is +/- .5° Link to comment Share on other sites More sharing options...
[Mi...] Posted March 22, 2021 Share Posted March 22, 2021 Please sign in to view this quote. Interesting, I've never run in to that. Could it be an issue of your base alignment origin being different from the OD feature you're drawing your lines to? Link to comment Share on other sites More sharing options...
[Ma...] Posted March 22, 2021 Author Share Posted March 22, 2021 Please sign in to view this quote. I don't think so, I'm using the OD as my base alignment. Link to comment Share on other sites More sharing options...
[Te...] Posted March 22, 2021 Share Posted March 22, 2021 I always project the 3d Lines to a common plane so I get the correct Angle (2d not 3d). Fasted way to do it is to make one projection and then copy and paste and change the 3d Line (first feature) for all your projections. I would copy and paste Ange Between Features and change the projections. I tried the transfer tool for Angle Between Features and it kept Feature 2 the same and replaced only Feature 1 so that didn't work Link to comment Share on other sites More sharing options...
[Ma...] Posted March 22, 2021 Author Share Posted March 22, 2021 Yeah copy and paste is good for things like this, that 3d line can really get to you if you have a variance in the 3rd axis. Link to comment Share on other sites More sharing options...
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