A Unique Wooden Triangle

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Project by zombeerose posted 05-05-2008 12:39 AM 2563 views 2 times favorited 14 comments Add to Favorites Watch

I created this unique combination triangle for entering into a tool making contest hosted by WoodCentral. I designed it accomplish three tasks that are common in my shop including accurate 45 and 90 degree angles, a ruler for measurements, and a marking knife for getting a precise line. The triangle is wide enough at 3/4” to stand up by itself so that it doesn’t need a third hand. The back of the triangle contains an elongated slot for storing the marking knife to protect the tip when not in use. A magnet is inset in the slot to keep the blade firmly in place. The knife was made from wenge and a polished reciprocating saw blade. Thin wenge wafers cover four ¾” magnets that are inset on the perpendicular sides of the triangle. The magnets allow the ruler to be interchanged as needed.

The ruler is quarter-sawn maple with macassar ebony inlays for each of the 113 individual markings at 1/16” intervals across the rulers length. A thin strip of the reciprocating saw blade is inlayed into the back of the ruler so that it can attach to the magnets in the triangle. The ruler was designed to be detachable so that it could swapped between two positions on the triangle or used independently.

All three corners of the triangle have paduak dowels that were specially turned on my lathe to provide added joint strength besides visual interest. Strips of 1/4” paduak were inlayed into the interior triangle edges for additional appeal.

All pieces are finished with a few coats of shellac followed up with spar varnish to provide UV protection and hopefully preserve the colors.

Completed 3-2008

-- Maximize - Your Time, Your Experiencies, Your Life, Yourself!

14 comments so far

View Scott Bryan's profile

Scott Bryan

27249 posts in 4905 days

#1 posted 05-05-2008 01:45 AM

This is a wonderful project. Not only is it functional and useful but it looks good as well. I am sure that it gave you a lot of satisfaction in entering this in the contest.

Well done.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View GaryK's profile


10262 posts in 5071 days

#2 posted 05-05-2008 01:50 AM

That’s great! Do you have a bigger picture?

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View grumpycarp's profile


257 posts in 4829 days

#3 posted 05-05-2008 02:03 AM

Beautiful. Might I suggest adding a hook to one end of the rule? You could then use one end to lay out inside and the hook end for outside mark out.

View miles125's profile


2180 posts in 5088 days

#4 posted 05-05-2008 02:35 AM

Great piece of art even if you were to never use it! Excellent.

-- "The way to make a small fortune in woodworking- start with a large one"

View CharlieM1958's profile


16292 posts in 5301 days

#5 posted 05-05-2008 02:38 AM

That is one heck of a tool! If you don’t win the contest, I sure want to see what does.

-- Charlie M. "Woodworking - patience = firewood"

View Tony Z's profile

Tony Z

205 posts in 4873 days

#6 posted 05-05-2008 02:49 AM

Did you win???

-- Tony, Ohio

View zombeerose's profile


88 posts in 5238 days

#7 posted 05-05-2008 03:20 AM

Thanks for all the comments! No I did not win but it was still lots of fun. If you click on the WoodCentral link in my first post, you can check out the rest of the entries and winners.

-- Maximize - Your Time, Your Experiencies, Your Life, Yourself!

View Dusty56's profile


11863 posts in 4771 days

#8 posted 05-05-2008 06:02 AM


-- I'm absolutely positive that I couldn't be more uncertain!

View zombeerose's profile


88 posts in 5238 days

#9 posted 05-05-2008 07:17 AM

I will definitely try to post larger photos :)

-- Maximize - Your Time, Your Experiencies, Your Life, Yourself!

View TopamaxSurvivor's profile


20856 posts in 4759 days

#10 posted 05-05-2008 05:10 PM

WOW, what a tool!

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View Grumpy's profile


26811 posts in 4934 days

#11 posted 05-06-2008 05:56 AM

Very inventive & great piece of equipment.

-- Grumpy - "Always look on the bright side of life"- Monty Python

View Bradford's profile


1434 posts in 4906 days

#12 posted 05-07-2008 02:09 PM

Very impressive. I wouldn’t have thought about making my own. (YET)

-- so much wood, so little time. Bradford. Wood-a-holics unanimous president

View zombeerose's profile


88 posts in 5238 days

#13 posted 05-11-2008 09:24 AM

I found the original pictures so I replaced the pictures with larger versions.

Thank you everyone for your kind thoughts. :)

-- Maximize - Your Time, Your Experiencies, Your Life, Yourself!

View mcoyfrog's profile


4757 posts in 4677 days

#14 posted 04-23-2009 06:04 PM

very artistic i love it, my background is in drafting, it brings back great memories

-- Wood and Glass they kick (well you know) Have a great day - Dug

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