thank you, this problem of have been resolved, but I find same problems with 3dp net (see this pic)

[IMG]http://i49.tinypic.com/x368nc.jpg[/IMG]

for 3dp bench have a different problem, it is difficulty to go out from program. there is no exit program

and i must end task with windows task manager for exit program.

I like to use 3dp software, it is very easy and effective.

I hope get a better version

thanks