Trouble Drawing 3D Cube

The following code sets a bunch of variables to hold different XYZ coordinates, then runs a series of LINE commands to draw a 3D cube calling the appropriate coordinates to place each line. It draws the 4 XY lines first, forming a box, then draws the 4 vertical Z lines, then draws the last 4 lines at a user-determined distance to draw the "bottom" of the box. Problem is, when I run the code it won't drawn anything except at elevation 0, creating a bunch of zero-length line strings. When I load the variables and hand enter individual line commands each draws fine - but something about running them all together isn't working. The code and the approach seems pretty basic to me, but obviously I'm missing something somewhere. I would appreciate any ideas anyone might have!

 

Not the way I'd have written it, but it works fine here. I suspect you may
have some running OSnaps set, causing your LINE commands to snap to a
previous endpoint. Be sure to set OSMODE to 0 before running the routine.
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coordinates, then runs a series of LINE commands to draw a 3D cube calling
the appropriate coordinates to place each line. It draws the 4 XY lines
first, forming a box, then draws the 4 vertical Z lines, then draws the last
4 lines at a user-determined distance to draw the "bottom" of the box.
Problem is, when I run the code it won't drawn anything except at elevation
0, creating a bunch of zero-length line strings. When I load the variables
and hand enter individual line commands each draws fine - but something
about running them all together isn't working. The code and the approach
seems pretty basic to me, but obviously I'm missing something somewhere. I
would appreciate any ideas anyone might have!

 

Yep, that was it - turning OSNAP off has it working like a charm. Many thanks for taking the time to look into this!