Cutting perfect equilateral triangles?

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Forum topic by Glenn Huovinen posted 05-12-2012 07:34 PM 6778 views 0 times favorited 7 replies Add to Favorites Watch
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Glenn Huovinen

66 posts in 2934 days

05-12-2012 07:34 PM

I need some help y’all. How can I cut consecutive equilateral triangles, one after another. All the same size?
Help please.

-- Glenn Huovinen

7 replies so far

View saproc's profile


80 posts in 2234 days

#1 posted 05-12-2012 07:39 PM

good luck with this one i have tried to make a jig that cut hexagons if you are just on degree out it shows. dont mean to be negative but its hard. good luck if you are sucessful please tell me how to do it. cheers

View Bill White's profile

Bill White

4928 posts in 3955 days

#2 posted 05-12-2012 07:45 PM

Cut with what? Table saw, miter saw, RAS…....?
More info please.


View Loren's profile (online now)


10373 posts in 3642 days

#3 posted 05-12-2012 07:54 PM

For game tile sized pieces in plywood, for example,
rip the ply into straight strips say 2” wide.

Then make a jig that rides in your table saw miter
slot with a somewhat adjustable fence set to
crosscut the angle to make the triangle. A
de-sta-co type hold down should be used with
parts this small, and twisting of the work should
be prevented with stops on the jig board.

It may take some trial and error to get the jig set
so you can just clamp, cut, unclamp, flip the
strip and repeat.

View jmos's profile


827 posts in 2364 days

#4 posted 05-12-2012 08:00 PM

If you just need them all to be identical (but not necessarily perfect) you can try stacking blanks on top of each other and cutting them at one time as a stack.

How perfect are you looking for?

-- John

View Glenn Huovinen's profile

Glenn Huovinen

66 posts in 2934 days

#5 posted 05-12-2012 08:08 PM

I am using a table saw and I made a jig to make diamonds, which works well. I just figure can’t figure out how to make a Jig for cutting exactly the same equilateral triangles. I want to duplicate in wood a quilt that my wife made.

-- Glenn Huovinen

View Dallas's profile


3599 posts in 2481 days

#6 posted 05-12-2012 08:20 PM

Try this idea from Raymond Chambers. He use it for making Texas Stars:

-- Improvise.... Adapt...... Overcome!

View Tootles's profile


808 posts in 2496 days

#7 posted 05-13-2012 03:00 AM

Do you have a cross cut sled? Add an angled fence at 60° to the blade (or 30° to the cross-cut fence) – use a drawing set square to get the angle perhaps. “Perfection” does depend on getting this angle right.

Then along that fence put a stop block to achieve the length of one side when cut. You can start with a regular rectangular board and make the first cut anywhere you like relative to the end of the board. Flip the board over top-to-bottom for each cut thereafter and make sure it is pushed up to the length stop before making the cut.

-- I may have lost my marbles, but I still have my love of woodworking

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