Boolean Diff leaves holes in planes, not object

 From:  Kevin (DOUBLELLAMA) 20 Jul 2020  (1 of 8) 
9895.1 
Hi,

Having trouble with what I thought should be simple Boolean Diff. It just leave holes in the planes, and not a in the object.




Thoughts?

Thanks,
Kevin
Attachments:
AttachmentBikeSeat.png