https://forums.autodesk.com/t5/autocad-forum/send-to-back-front-not-working/m-p/5840507#M309686 <P>3D columns overlapping. Does this mean you have them one on top of another?</P> <P>&nbsp;</P> <P>If I understand you correctly, you should arrange them in sequence along the Z axis (or parallel axis to your sort)&nbsp;and not place them on top of one another.</P> <P>&nbsp;</P> <P>If I am not following you correctly, further explanation of what you are trying to accomplish may be needed for us to give you a proper solution.</P> Thu, 01 Oct 2015 14:12:32 GMT steve216586 2015-10-01T14:12:32Z