Very odd. Using 2018, the original object Shelled to -0.03, but TurboCAD crashed when I tried to save the file (didn't even drop down the File sub-menu items); this happened both times.
Re-starting the first time got a Windows Compatibility popup. And the Open Last Edited option referred to an earlier file (but clicking on Open File defaulted to this file).
Third time was the charm, but I used the mouse to open the File / Save As requester instead of my usual <Alt> Menu selection method, so that's a bug of some sort.
Attached is the file after I 3D Sliced the object. It failed when I V-snapped to the outermost vertices, so I manually clicked just below that vertex in Front view to get this result.
« Last Edit: May 10, 2018, 06:20:11 AM by Jeffin90620 »
TC Pro Platinum 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1