Cannot draw dimension lines

[PJ01]

In the middle of drawing I  have accidentally changed how my dimensions work. In the attached drawing, I  cannot do the horizontal dimension for the lenght of the top line.

Can anyone please advise where I have gone wrong and how to fix it?

 

Tray end #2 -Dec 2022.dwg

[BIGAL]

Works for me ?

 

DIM HOR

[PJ01]

Thanks for your quick response, BIGAL. When I  go to the start point of the line to be dimensioned, a  small rectangular cursor appears, and I  an requested to select the object to be dimensioned. That is not what I  normally have. I  usually am able to start at a point and drag a dimension line to the finish point.

Another problem with the "object ' method, is that I  cannot measure between the lines. eg how to dimension  the vertical distance between the curves shown on the drawing

Edited December 28, 2022 by PJ01

[BIGAL]

The square box is maybe your osnap End so just pick 2 points then drag away for label.

 

Same DIM VER are you using dim align ? That is a 2 point pick.

 

Anyway I think vertical dim is wrong the arc does not touch the white line I extended. Dim = 28.5 not 28.6

 

[PJ01]

Thanks BIGAL, you have solved it. Many thanks. I  used F3 to switch OSNAP on, and all is back to my usual method of dimensioning.

 

Will sort out the arc not touching the line, thanks for that too

[BIGAL]

Those little gaps can be hard to find sometimes. Glad to help.