Quote Originally Posted by Ger21 View Post
Did I miss something here?
Hi Gerry

I mentioned you on another thread, where a member here was convinced MDF was too bendy and metal is the ONLY way to get accuracy . I made mine
from MDF torsion box/beam sections and was trying to explain that MDF can be made to not bend, and that you , - definately not a newbie - choose MDF to build your new machine.

As for rails ...

I agree that supported precision rails are the best, but a lot of people would be perfectly happy with the results from DIY supported pipe and skate bearing trucks, for example. or for a bit more, steel plate and CNCRP type trucks like CarveOne uses.

There are even people out there very happily using drawer runners and allthread screws, and it does everything they ever wanted ! or, they use it to make parts for a second machine , etc.

On the other hand, Microcarve has extremely accurate machines with unsupported round rails - used to their limits - and made from MDF and plastic pipe ! LOL .