How to draw the 3d block shown in the image sent?

[hemal]

I can't figure out how to draw the 3d model shown in the image sent. It is fig 15.47 shown upside down.

[CyberAngel]

There is not enough information to draw a complete object.

 

What is that line on the other side of the rectangular hole? Where does it start and end? Where are the other edges of that surface? What are the dimensions for the ridge next to the ring, and how does it fit into the opposite side? Where does the flange on the left end? What is going on with that rectangular panel on the right? The whole thing looks like it was designed by M.C. Escher.

 

Wait, I'm looking at it inside out as well as upside down.

 

Your best bet may be to start with the rear face (which we can't see). Draw the two uneven sides separately and extrude them. Draw the rectangular side (with two holes) and extrude that along the Z (?) axis. In other words, separate the task into the four faces and pull them in their own directions.

[Cad64]

10 hours ago, CyberAngel said:

The whole thing looks like it was designed by M.C. Escher.

 

My thought exactly. It looks like an Impossible Object. 

[lrm]

Start with the profiles on the vertical back plane (XZ world) then extrude.

Add consruction lines to define regions.

Extrude regions, substract cylinders and union it all together.