ZBrushCentral

Shadowbox problem

can somebody tell me how to make this a circle. I do not want it to be cut in half as shown in the picture. I am trying to make a motorcycle engine and i am stuck in this part

Attachments

ZBrush Document.jpg

1907638_1587958778096716_5274581962688825275_n.jpg

not sure why it is doing that.

work around-
tool.geometry.modify topology.mirror and weld
after you make an actual mesh that is.

thanks for the tip. I got it to work now after making a new shadowbox, but i did not know how i did it.