Very true.....I'd expect there to be some fairly extreme variations form
place to place.
I used to have a very bad opinion of MDF. But all I had was some pieces
I'd set aside from a demolition project.
I kept seeing mention of "MDF cnc machines" about 10 years ago.
I thought that was an insanely bad idea.....but I went a bought a piece
just to look at.
I got Lucky....rare, but it does happen....
It was a high quality shelf....as I wasn't about to invest in a full sheet
of potentially crappy material.
(Sometimes I suspect the shelves are better quality for the job expected
Anyways, that shelf I made my first experimental machine from
was impressively work-able to cause me to build another...and another....and...
I've been after the "perfect" design for awhile. My understanding of what
that means is, the design is "perfect" when there's nothing to add and nothing
to take away. It's *Right*.
A well made MDF machine can be expected to handle hard use and perform
as well as a metal one. It's simply not a wet-use machine. But coolants aren't
exactly good for the common router used on a home-built, DIY, "cheap machine"
Getting the right bits does allow for a bit of aluminum milling, but that's...IMO...
still a job for the right machine. An iron mill, or a very expensive machine intended
for the job.
I used to hate MDF. Now I think it's great stuff. But design and assembly
makes or breaks it's usefulness.