Custom "square"

[Peter Tremblay]

Hello all,

I'm not sure where to post this question but would anyone know of a place to order a machinist square in a custom angle?

I really like these types of squares.

[attachment=8523]

However I'd like one made at 50*

Would anyone know of a place to order something like that?

[photobug]

Two options to avoid paying a boatload to a machine shop:


Starret protractor.

Possibly a plastic square, not sure what they are called.  But extremely accurate if you could find one in 50 degrees.

[mike4244]

Hello all,

I'm not sure where to post this question but would anyone know of a place to order a machinist square in a custom angle?

I really like these types of squares.



However I'd like one made at 50*

Would anyone know of a place to order something like that?

I have made two custom squares , 24° and  18°. These were for a cabinet maker that specialized in coopered tops for chests etc.  He uses these to check the angle of saw cuts on the staves . 
I have metal working machines so this was not a difficult job. I machined dead flat a bar of steel 3/4" x 1-1/8" x 3" long. Then sawed a 1/16" slot for the blade 1" deep. I used  a sine bar to get exact angle. Pre drilled four 3/16" holes in the steel bar. After aligning the blade for angle I epoxied the blade to the bar. Next day I bored thru the existing predrilled holes with an undersized drill, about .180. Then reamed to .186 which is .001 under the brass rod I use to form a rivet. I turn a small  chamfer on each rivet 1" long and drive it home. The rivet is milled flush on each side.
I think you could do something similar. Instead of steel bar ,use hardwood . Band saw a kerf , predrill for rivets and epoxy the blade to 50° angle . I used 1/16 x 1" tool steel for the blade as it is straight and flat.
Mc Master Carr is one supplier ,there are many.
mike

[Peter Tremblay]

Thanks, Mike!

That's a great suggestion

[Timberwolf]

Hello all,

I'm not sure where to post this question but would anyone know of a place to order a machinist square in a custom angle?

I really like these types of squares.



However I'd like one made at 50*

Would anyone know of a place to order something like that?

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This may be accurate enough for you if you don't want to make one yourself...

https://www.amazon.com/Fowler-52-440-612...protractor

[Peter Tremblay]

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This may be accurate enough for you if you don't want to make one yourself...

https://www.amazon.com/Fowler-52-440-612...protractor

Wow, That's not cheap

[Admiral]

Wow, That's not cheap

Actually, if you have an orphan protractor head for a combination square, that would be a more flexible option, just set it and forget it.  You can get a "blem" PEC head for $25 from Epstein, and they are pretty good, more than good enough for woodworking, and your 12" rule from your combination square will fit, or you can buy another one for $10. PEC makes good stuff and these blems are a bargain. Link:

https://www.harryepstein.com/index.php/c...12-up.html

https://www.harryepstein.com/index.php/1...r-usa.html

[photobug]

Wow, That's not cheap

How much do you think a custom machined square will cost you?  I figured North of $100.

[Timberwolf]

Wow, That's not cheap

.................
It's not bad as far as precision protractors go, and cheaper than a "custom" made square of comparable accuracy from a machine shop...It just depends on how accurate the angle has to be. Rich is correct about the combo protractor.

[Foggy]

Harbor Fright: Multi-square $6. Combination square set $8. Set it to the angle you want forever, then drill and pin so it stays that angle.