I made one of these, but it was centered at one place on the dowel and off on others. I check my specs, and then discovered the dowel was not perfectly round. I found a dowel that was round, and the device worked fine. Make sure the dowel you use is round and not off a bit. It will throw off your measuerments. Thanks for posting. Saved me some $$$$. More accurate than the metal monster I got from Sears years ago that never seemed to work right.

Great Idea !!😊

Simple, Quick and Effective. Thank you.

Thank you for helping, Best Video!

Clever idea. Thanks

Thank you! It is is very useful.

mind blowing sir awesome!!!!

simple geometre!!!good job !!!

it works because the two wood piece act as a tangent to the circle and the tangent are always perpendicular to the center of circle which is the diameter of circle.

Really nice! :)

So simple, so helpful

This is best method !

Very handy tool 😊

very nice......!!!!!

Great

you MUST be a teacher :) very nice.

the moment you start drawing on paper is the moment you will never be precise. i would just use a circle of which i already know the center to find where the 45 deg angle is

Cool

Muito bom.

Please show me how to make a FM transmitter and receiver.

from which country are you ?

First to like..

Thanks

muito bom

Visual paralax alignment of bisector, and realignment of the square to the lines, limits the accuracy. It is a good concept though

thank you

Not only circle! This will work with square too.

And your are always thinking about everything \o/\o/\o/

this is perpendicular bisector method

Doesn't have to be a ruler.

or just use a square

Hey jack, don't you see the center is already there!! Why is it so hard for me to watch you be so hummm?. next time find an object that might make it interesting. Just sayin