45 degree mitre in solid object

Hi All,

I am trying to put a 45 degree mitre at the end of this piece of decking, but I am having a bit of trouble. It says it is not a solid object, but a check elsewhere seems to think it is.

Any ideas?

Thanks,

Adam
Decking.skp (6.3 MB)

We can only guess unless you attach the model.

Stray edges.

I can’t see these. Isn’t there a tool to “tidy up” a solid object?

Found it now. Thanks a lot. I have now been able to subtract it using solid tools.

How did you find it so quickly?

check solid inspector in the extension warehouse.
at best it’ll fix it. at worse it’ll highlight the problem in red.

Thanks alot.