Spoil Board Probotixs

[politicaldog]

Len or staff we had a discussion this morning concerning spoil boards and the one that came with my Meteor. Picture Below!

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[politicaldog]

You told me this was MDF? Picture below is my MDF on top of yours. It looks like two completely different material?

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[politicaldog]

Another!

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[HANNAH024]

The top board looks like particle board.
MDF is made with smaller particles and chemicals so it is darker and more dense.
It is somewhat moisture resistant, but over time it swells. Especially after it gets carved up from use or has been surfaced.

[politicaldog]

OK,,,,must have had a brain block. Don't even know what I was thinking. Thanks Hannah !!!

[4DThinker]

MDF = Medium Density Fibreboard.

https://en.wikipedia.org/wiki/Medium-density_fibreboard

To me it is particle board, just made from smaller particles.

[Eventide]

MDF has glass, metal shavings, wood particles, and whatever else gets swept up. OSB chip board is only wood as a substrate. MDF holds pretty good tolerances when machining, and doesn't move much with humidity and moisture, unless it's alot of both. Chipboard goes all over the place.

I put a piece of 3/4 OSB flooring underlayment for a spoil board on my machine. I shoot screws right into it when clamping my work piece down. 1.25" screw through 3/4 oak hold down and it works fine.