Cutting a mesh?

Essentially for a project i’m working on I need to have a cylinder and then cut it horizontally, and vertically. like a knife tool to just slice it 6 waves horizontal then 6 ways vertical. cannot find anything googleing and thought you guys would know! anything that could do it in a perfect grid would be even more awesome

Model that one slice out of cylinder and use arrays to form whole object. Imho that would be the easiest way.
Happy blending!

well there is a knife plane script in 2.49

i an uplaod the script if you need to let me know !

happy 2.6