Precise angle cut with a circular saw?

for short cuts a speed square works well.

It depends on what you are trying to cut. For sheet goods, like plywood, simply mark the degree angle you need using a protractor and extend it across the sheet. For stock boards (1x4,1x6,2x4, etc) clamp a speed square to the board for a 45 degree cut, or mark it using a protractor, then clamp a guide so that you have something to run the base of the saw against as you cut.

Probably, but in this case, a little knowledge is better than gadgets, which are fiddlesome and often inaccurate.

For a hand held circular saw, I would use a good square, a rule, and a straight edge to guide the saw. To cut a given angle, use trigonometry to determine the lengths of the two perpendicular sides of a triangle containing the desired angle.

Bids are up to $5.00 already, sans shipping. HD has a Stanley equivalent for $6.97.

I didn't mean to imply that the OP should buy that particular one- just using it as a convenient image.....

You might get a kick out of an "almost" product described at

Porter-Cable had a similar product a whole bunch of years ago. I tried it, didn't much care for it.

Charlie Self "Facts are stubborn, but statistics are more pliable." Mark Twain

fight, just ignorant).

Jeff

The idea behind the "almost product" was that after "calibrating" the wooden spar all you would need to do is mark your cut and align the end of the wooden spar with the mark. When using a speed square you have to take into account the offset between the edge of the base of the saw and the blade location. Lee Valley sells two similar saw mitre gauges, see below.

Jeff...

Doug nailed it. Used with care, it combines extreme accuracy, speed, durability, and convenience - and delivers those benefits equally well to complete newbies and old pros.

It died as a product because I couldn't afford the entry fee - cost of stamping dies + cost of minimum initial production order.

The good news is that all it takes to build your own is 30" of

Gonna make me one of those.

Paul K

Paul...

You made my day! Enjoy...

Stanley makes a speed square with an adjustable bar to dial in any angle. It looks a lot like any old speed square.

The only information on mine is: STANLEY PAT.D290092

Hope it helps.

-Phil Crow