Here is a sub tool that I made so you can have a grid inside of Zbush. I made a centimeter and meter version.
This Ztool is very easy to use with preexisting models when used in conjunction with [subtool master.](http://www.pixologic.com/zbrush/downloadcenter/zplugins/) (Just use the Multi Append button and load either your centimeter or meter grid. This will auto load all the pieces of the grid to your preexisting model.)
[](http://www.sharecg.com/get_file.php?upload_file_id=22566)
This grid has helped me place the feet of my characters on the ground, I hope this helps you out as well.
Peace-NickZ.




