Not sure if this is the right place to put this but I manually went in and made a ztool with all of the shapeways bounding boxes for their maximum print volume. I'm sure many have done this before but I thought it may be useful to some people, it's come in handy to me. The scale is in millimetres:

https://dl.orangedox.com/V6gOWILoojGQB0eoop