Shaft taper?

[Lon nan Gruagach]

No not measuring any angles. Am measuring 100mm from where the 2 lines intersect (thinking there it should be 10mm between) My method will give you an answer in a jiffy. Someone suggested I need to add the 5mm from the other side to give 10mm.. You are climbing a hill- you go along 10ft and up 1ft for 10.1

Angles can be represented as degrees or ratio (as you are doing since it is a taper)

Tapers are measured right across the shaft, not one side to the middle. Note that what you are measuring would be the same if you drew a centre line instead of the side of the parallel bit of the shaft.

So, in your Hill analogy there would be 2 roads, one up, one down, the measurement you want is between the 2 roads, not the slope of 1 road.

 

[vic008]

Thanks Dougal, I'll go with your answer.

 

[Tranona]

No not measuring any angles. Am measuring 100mm from where the 2 lines intersect (thinking there it should be 10mm between) My method will give you an answer in a jiffy. Someone suggested I need to add the 5mm from the other side to give 10mm.. You are climbing a hill- you go along 10ft and up 1ft for 10.1

You are really making a meal of something that is so simple. You do not have to measure in the way you have, you have only confused yourself. Post#17 gives you the dimensions - but you would have discovered this for yourself if you had followed the earlier advice to measure the diameters of the shaft at two points.