[Ho...] Posted June 17 Share Posted June 17 Hello, I programmed a freeform but I forgot to make a Best Fit. The workpiece is not there anymore. Is it possible to make a Best Fit with the existing data ? If yes, can anybody explain to me how to do it ? Thanks Link to comment Share on other sites More sharing options...
[Ma...] Posted June 17 Share Posted June 17 You need to have actuals of that part ( saved or last measured actuals). In what way you want that bestfit? Profile callout without alignment or use bestfit as alignment? Link to comment Share on other sites More sharing options...
[Ho...] Posted June 18 Author Share Posted June 18 I am very new to Calypso: What do you mean with "Profile callout without alignment or use bestfit as alignment ?" I measured a milled ball. The ball is not perfect so I thought to make a best fit of all measuring points so that the deviations in summary are in a minimum. I want a protocol with better values. I do not need a new zero point for further measurings. Link to comment Share on other sites More sharing options...
[Ma...] Posted June 18 Share Posted June 18 Do you want a one number or list for every touched point? You can do this to obtain one number - or you can enable graphical view and see deviations in CAD window ( i preffer cylinders ) Link to comment Share on other sites More sharing options...
[Ho...] Posted June 18 Author Share Posted June 18 We should not talk about a sphere specific. It is only a sample contour to describe the problem. It can also be a mould for a telephone or an electrode for a car lamp. In history the measurement was made with Holos. And if I am right there a second measurement was not necessary to make a bestfit. Link to comment Share on other sites More sharing options...
[Ma...] Posted June 18 Share Posted June 18 I am dealing with forged parts, where is sometimes missing a material ( due residue in die or material didn't fill whole place ) and i am trying to measure how much is missing. What i found as working approach was using a model, where i use free form feature with path from 4 points. Then i use 3D curve and recall FF into curve with recalculation so i get nominals from path in FF. Then i make alignment from curve which is used for calculatin profile. In your case you can select no Datum reference Frame ( default is used features alignment or base alignment ) - this will give you bestfit for FF with fitting + and - deviations. 1 Link to comment Share on other sites More sharing options...
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