|Forum topic by muleskinner||posted 08-08-2016 05:17 PM||395 views||0 times favorited||7 replies|
08-08-2016 05:17 PM
So I’m building this five-sided box.
“Why a five sided box?” you may ask. I don’t know, I just am. Anyway, after a quick high school trig refresher, I came up with my dimensions and angles. )I’m almost embarrassed to tell you how much pencil lead it took me to figure out the segment lengths of a pentagon that circumscribes a 5” diameter circle)
My miter saw has a rather crude scale but detents for for 90, 45, 35(!?), 30, and 22.5 degrees. The 90, 45 and 30 I know from experience are accurate and assume the others are as well. But dialing it in to 36.0 degrees was problematic … make a cut, check it with my cheap ass General protractor, repeat till I’m satisfied. My first attempt was unacceptable even by my low standards, yielding only five pieces of stove wood. Then after a measurable reduction in my scrap bin, I got close enough.
But even ‘close enough’ is not perfect.
So my question is, what tools, techniques, sacrifices to the gods, do you use to get dialed in to those perfect miters?
-- Visualize whirled peas