Recent comments

Re: PhD Candidate from Massachusetts wins Fine Woodworking Live Pass

The vent opener spring-arm mechanism has a hydraulic cylinder threaded into it that is filled with a mineral wax. When the wax is heated, it expands and extends the piston out the top of the cylinder. When the piston has been sufficiently extended to overcome the spring force and window weight, the arm begins to extend, opening the window. When the cylinder wax cools, the piston retracts with the aid of the springs and the window gradually closes again.

This link has the most detailed explanation of this automatic vent opener mechanism that I've found (under the 'More Product Info' tab):

Re: UPDATE: Win an all-access pass to Fine Woodworking Live 2013!

I would love to go; this sounds like a great event!

Re: UPDATE: Carving in the Round by Andrew Thomas and How to Carve Wood by Richard Butz

I have always admired carving and would love to learn with these books in hand. Thanks for the chance.

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