The Square of Thales - The best Low-Tech way to make sure that a corner is dead-on SQUARE!

[@mattgoodstadt2372]

Woodworking tips AND maths. This could be my favourite video ever!

[@SteveMaskery]

Lol! Now if it involved woodworking, maths and food it would be my favourite video too!

[@rockdog2584]

That is BRILLIANT!. I'm going to have to make me one (or more!) of those!!!

[@miketucker7466]

Why have I never seen this before, off the the play room to make one now!

[@GSMusicMusic]

Excellent application of basic geometry.

[@GNU_Linux_for_good]

_I'll make one right away, Steve_

[@MrPatdeeee]

Absolutely a magnificent teacher. We are blessed to have you Steve. Praise Jesus.

[@nikkigrant7497]

My goodness Steve, that's genius. I've always just said to myself "there's no such thing as square. Only an approximation" Well now I'm hoping that there may actually be such a thing.

[@stevenwild39]

Fantastic video. Such a clever tool based on first principles of geometry.

[@davidrees4063]

Old man in XXXX (location removed for safety) chatting about an old man from Greece. Cheers for the video Steve, I made a nice metal one a few years ago after your explanation of it and it still gets used when I remember where I've put it. :)

[@richardplester]

This is such a clever idea, bit of thought and would be so easy to make with no measuring required.

[@eduardo_2805]

amazing. thank you for sharing. Your channel is great, btw

[@kafkaian]

Blimey...and after 5 years & throw back from the UK Woodworking Forums. Welcome, and great to have you back Steve. Ian, Birmingham, UK

[@ronaldcordina]

Glad to have you back on here Steve to share your knowledge

[@davidflather1707]

I need to make a few of these. Brilliant!

[@RogerM9]

So simple! Like all the best ideas. Thanks Steve - off to the workshop to make one of these. .

[@kevinwillis6707]

great tip, thanks very much

[@gugucostamachado8711]

Welcome back! Cheers from Brazil.

[@taoisttiger4702]

Very cool!

[@piggybladder]

Steve, that's brilliant. Gonna mash up 2 or 3 of these this week. Thanks for posting.

[@Woodgate425]

Excellent Steve, great to have you back. Where ya been?

[@mickt1230]

Wow, wish I had seen this 30 years ago. Thanks.

[@jbofbutcombe]

Welcome back, Steve.

[@puddinggeek4623]

An excellent video. Very informative and useful. I will make one of these very soon.

[@patfinnerty1115]

thanks, I am making one in Aus

[@alland1241]

Only just been notified of this, Welcome back Steve, Still got loads of your dvds, its good to have you back

[@phooesnax]

Steve! So very pleased to see you. Never heard of that before. Hope we see you again soon, Jim

[@brian-hall]

Triangles etc are fascinating, thanks for the titbit. Oh & good to see you back on youtube, hope it's not another 5 years before we see you again.

[@WiZeR911]

Yes a blast from the past. Good to see you Steve. Great video. Thanks. (wizer)

[@peterquinn350]

I am so happy that KZbin pointed me to your channel. There is a such a wealth of information that you have shared. Thank you!

[@TerryMcKnight1]

Fabulous and very educational. I'll head out into the shop and make one or two. Thanks Steve and welcome back.

[@karlsjov]

Welcome back, hope to see more videos from your hand 🙂

[@selfsameday7448]

Very helpful!thank you very much !

[@DavePawson]

Very smart Steve. Especially for the MFT!

[@209porker]

Been looking forward to you getting going again Steve. First of many more I hope! Nice Workshop!

[@geomikea]

Nice! I would have liked to see how you made it, but think I can muddle through.

[@SteveMaskery]

Thank you George. Yes, I think I should have shown the making, it is easy to take for granted how it is made. Start with the short arm, sharpen it up and screw it to the longer arm (which should be a bit longer than you need). Then just trim the long arm at both ends to match. Job done!

[@peterbassett2179]

Hey, Steve's back!

[@RickMcQuay]

Enjoyed the video Steve. I made one about 3 years ago and they are dead on accurate every time.

[@hardnox6655]

Excellent! Thanks for sharing.

[@mikevyvyan7060]

Thanks Steve, very helpful. Thought provoking and instructive, as we have come to expect from you. Delighted to to see you back on line.

[@JohnColgan.]

Brilliant concept, thank you👍👌

[@richardslater677]

Very interesting thanks.

[@decuevas244]

What a beautiful piece of "lost" information!! I love it, thank you!! 66carpenter

[@travisheinsohn4203]

Great video, very original content. Thank you for posting.

[@johnlennie2657]

This is excellent! What wood should be used, to minimise warping? TIA

[@SteveMaskery]

Any straight-grained wood would do. Mine are just good softwood, but you could use ash, maple or cherry for a super-duper job.

[@eduardo_2805]

teach us how to make one!

[@peterbassett2179]

Is this filmed in the incredible workshop?

[@SteveMaskery]

Yes!

[@pointer2null]

@@SteveMaskery Just read that thread as I'm about to start on the same project ... slab being laid next week.

[@paulmurphy1144]

Could you do a video on how you made them?

[@SteveMaskery]

Start with some stable material. Straight-grained and stable. Make sure that it is thick enough to embed a nut, so maybe 12mm if your pivot is an M6 nut and bolt. Make sure the small arm is a little over half the length of the big arm. Drill the big arm for the A/F size of the nut, for its depth (typically 7mm for an M6 nut), then pull in the nut. Drill the small arm bolt the two together and shape the ends so that the points match at both ends. Dead easy. And 100% accurate.

[@TotalDec]

"Thalese" seems like a better way to spell it. You pronounce "beta" wrong.