Page 32 Modeling a Tank: Cannon

Cannon

Open the file cannon_curves.3dm and save it out as cannon.3dm in your tank directory.

Select the 2 curves show below and hit Loft using the 'Normal' style and 'Do not simplify' options.

In the front view select the curve highlighted below and Extrude it enough to pass through the lofted object, shown in progress.

Split the lofted object with the extrusion object as the 'cutting object' and Delete the smaller left most part of the split.

Split the extrusion with the lofted object and Delete the outer part of the split to get the results shown below.

Select the lofted object and hit Mirror and use the 'guide curve' as the axis (you can use 'End' osnap if you want to be precise). Shown in progress below.