8 x 4 build

[Lee Roberts]

I would suggest you don't need the flat bar as it's not likely to add anything, where you've got the angled sections on the "feet/legs" of the frame, move those up into the rectangular spaces or add some there, they will serve you much better.

.Me

[njhussey]

The flat bar will not add much stiffness and will in all likelyness resonate...what are you doing to stop the chips from collecting on your rails as they're right in the path of the flying chips. Would like another look at your Z axis as I seem to remember thinking that your beating carriages were too high up which means alot of length hanging down unsupported?