My company checks a lot of gages that incorporate all types of angles. 0.02° converts to 0°1'12", which in the gage industry is not considered overly critical. I have done a comparison check between checking the angle on the CMM and checking the angle on a surface plate a number of times. On the surface plate I use a sine plate build up and indicator attached to a height stand. The results have been very comparable. I would suggest, if possible, you do the same thing. With the part you have shown, you will need to use a vee block on the sine plate to hold your part. Rotate the part to a few different position to ensure that you are checking the form of the taper as well.
My company checks a lot of gages that incorporate all types of angles. 0.02° converts to 0°1'12", which in the gage industry is not considered overly critical. I have done a comparison check between checking the angle on the CMM and checking the angle on a surface plate a number of times. On the surface plate I use a sine plate build up and indicator attached to a height stand. The results have been very comparable. I would suggest, if possible, you do the same thing. With the part you have shown, you will need to use a vee block on the sine plate to hold your part. Rotate the part to a few different position to ensure that you are checking the form of the taper as well.
