After combing half of the Midlands today I'm at a loss...Seems I can't find a circle square (tool to find circle centre) at a reasonable price. Anyone got any pointer please. Thanks. John.
- posted
19 years ago
Circle Square
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- posted
19 years ago
Try:
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search for "centre square" - they have a couple of sizes at around 6 squid.
Regards, Tony
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- posted
19 years ago
Not sure but is this what you are looking for?
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19 years ago
Thanks guys. A friend of mine has a small plastic one about 4", cost him a couple of quid...plastic and steel blades but cant remember where he got it from....You can get combo types for about £15 and as a poster has already mentioned, an engineers grade for £6. Be nice to find the 'couple of quid' one though. John.
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- posted
19 years ago
"John" said
As an engineer surely it is well within your capability to make one. The angle of the 'V' is not critical - just the alignment of the 'blade'.
You could try places like Focus or even Wilkinson of course.
JG
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- posted
19 years ago
Not a couple of quid but they do have them and are useful place to know about anyway... Proops who can be found online at...
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Cheers Mike 8-{>
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- posted
19 years ago
Remember your 'O' Level maths - the angle subtended at the centre is twice the angle subtended at the circumference.
Take a right angle and put it at the circumference. Mark off where the two sides cross the circle - this will be a diameter.
Move the point of the right angle round by quarter of a circle and repeat. You now have two diameters. Where they intersect is the centre.
Or, if you want accuracy to suit your standard of machining....
Set up in 4-jaw chuck and use centre drill from tailstock.