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AutoCAD Based Piping (Ribbon/Toolbar/Location)
Inserting a pipe dimension (pipex) places it at the end of the pipe, including its center grip or not even on the pipe at all
See solution #3 if the PIPEX is not on the pipe
User was turning on Pipe End (PENsnap) and Sprinkler (SPKsnap) from the Autocad status bar at the bottom of the screen.
Don't do that.
Instead use SHIFT+RT-CLICK or set the pipe end osnap using the osnap settings button from the toolbar in question.
Z-coordinates in the drawing are forcing the PIPEX to the end of the pipe
Eliminate the Z-coordinate from pipe. If you want to avoid the Eliminate Z-Coordinates command (as this will do ALL objects in a drawing), an alternate method is to use Select Similar.
Select one pipe, right-click then click 'select similar'. Then, change the Start Z and End Z properly to 0 for all objects.
You'll have to do this for all 4 piping layers.
3DOsnaps have been turned on.
Press the F4 key and ensure it says <3DOsnap off>
Or click this button so it isn't highlighted
Unknown. The other solutions mentioned do not make a difference
Close the drawing and re-open it