New Video: Torsion Box

Not a detailed how-to tutorial, just a quick check. We've heard they're rigid, and they FEEL rigid, but can we measure it?

https://youtu.be/2JkNi7jIkRE
I compared a very simple torsion box to a pine 2x10 by putting them across a 30" span (one at a time) with a dial indicator underneath, and stood right above the indicator.

Results? Torsion box deflected .03 inch, 2x10 deflected .1 inch. So yes, torsion box is nice & rigid.

In case it matters, the skin of the box is 1/2" plywood and the core grid is 3/4" plywood on 8" centers. The box was assembled with glue, plenty of clamps, and 16 gauge brads shot in with a pneumatic nailer.

I like torsion boxes.

Wall Shelf Build-Off

I think of Chris Wong, of Flair Woodworks and Time Warp Tool Works, as one of a very few people I have interacted with online whom I feel I'd consider a real friend if I met them in person. Lots of folks I've only encountered online provide valuable information, or giggles, or inspiration. In addition to his design sense, industry, and craftsmanship, Chris conveys a strong sense of humanity, kindness, and likeability with his online presence. 

So I was delighted to see this on my Twitter feed:

I participated in #SSBO two years ago and had a great time; in the process I built myself a piece of shop furniture which is not only supremely functional, it's also the envy of my woodworking buddies. In fact it's out on loan right now, in the shop of a budding young carver.

Here are details about #WSBO:
 https://flairwoodworks.com/2016/12/27/the-wall-shelf-build-off-january-28-29/

As luck has it, Ms. Lee and I are updating the master bath at Chez Lee, and we could use a wall shelf as we button things up. A wall shelf to coordinate with a frame we need around the wall mirror . . . so there's a chance I'll participate in this Build-Off, too. We'll be brainstorming this weekend, to see if we come up with anything worth entering. Ian Kirby comes to mind; we'll see what Ms. L. thinks.

Ian Kirby's Sharpening with Waterstones

In the time I've been writing this blog, I have shied away from doing book reviews, because I want this blog to tell you what's going on in MY shop. But sometimes, what's going on in my shop is that I'm reading, to help jog my memory about a technique or construction method or tool setup that I want to use. For me, woodworking and reading about it have always been paired activities which make each other more interesting and rewarding. It's about time I shared some of my thoughts on a few books, blogs and magazines.

I

Some Books I Like

In 1998 and 1999, Cambium Press (later taken over by Linden Press) issued four books by Ian Kirby: The Accurate Router, The Accurate Table Saw, Sharpening with Waterstones, and The Complete Dovetail. These books are physically different from typical woodworking books, with a smaller format: 6 by 9 inches and 140 pages, compared with 9 by 12 and around 200 pages for most woodworking offerings from publishers like Taunton, Sterling, Fox Chapel, Popular Woodworking; and other titles from Cambium/Linden. So they're half the usual size, but also half the usual price, at $14.95. I like them all, and they're among the books I recommend students in my classes read.

The illustrations are all