i recreated vaguely what I was doing. I created an arc, then I wanted to measure a specific amount from point A6 along the arc (downwards) , to create a point, as well as measure up wards along the arc another amount. ! can see now that I can get the info on the arc length and try to place points that way, I guess I was thinking there must be a way when doing that to input the point to measure from.
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