Get Ready to Ratio

George Walker and Jim Tolpin’s book “By Hand and Eye” is shipping from Lost Art Press. If you have any interest in understanding how to design furniture by pre-industrial methods, it is a must have.

In preparation for get this hot little number in my hands, I recently gave my large sector a tune up. I’d discovered a little fluctuation in my original marking, so after adjusting those I made some modifications to make my large sector a little easier to use. We’ll get into that another time, but for now, have a look at how to lay out and make one of these exceptionally useful measuring tools.

Reposted from George Walker’s “Design Matters” blog-

Down the Rabbit Hole IV

In our newly released book “By Hand & Eye” we promised to post instructions build a sector. Jim put this together.

Making a Sector

Select clear, straight-grained, light-colored stock such as maple. Produce sticks from 4/4 stock, tapering from about 7/8-in. at the base to ⅝-in. at the far end. This taper isn’t necessary, but it looks nice and it brings the balance point closer to where you generally are handling it in use.  Your choice of length: I have one about 2-ft. long for scaling smaller projects and minor components and one about 3-ft. long for dealing with full furniture dimensions. The drawing shows the construction details and nuances—which include the fact that the pivot point of the sector’s legs is not the center of the hinge pin as you might expect, but the back of the hinge.

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This entry was posted in Design and Proportion, Furniture Research, Medieval Tools, Reproduction, Tool Research. Bookmark the permalink.

One Response to Get Ready to Ratio

  1. Alan Fleming says:

    How would a Renaissance artisan have constructed a sector? What would he/she use to make the hinge/pivot point?

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