Chris Barnett
08-21-2007, 9:40 PM
Been looking for the simple little device (in lieu of making it) that is used to find the exact center of a circle, i.e. end of a cylinder by locating the diameter across the circle. It is a simple jig which is composed of an acute angle whose sides have flat faces to place against the side of the cylinder. Another side bisects the acute angle, which thus defines the diameter. Marking several diameters shows a point common to all the diameters, which thus defines the center of the circle.
I have searched the web using the typical search words, but results...nada, null, zilch, zero, zip. Had need for one of these to find the center of a PVC cap, drill a hole, and make a guard for a knife steel. Now I find I need one to mark the center of chair legs, exactly since there is little margin for error, to install floor protectors.
Is there a simpler means, using only two hands, to find an accurate center on the end of a cylinder, without chucking and turning the part [tough on the rest of the chair and children run away ]?
I have searched the web using the typical search words, but results...nada, null, zilch, zero, zip. Had need for one of these to find the center of a PVC cap, drill a hole, and make a guard for a knife steel. Now I find I need one to mark the center of chair legs, exactly since there is little margin for error, to install floor protectors.
Is there a simpler means, using only two hands, to find an accurate center on the end of a cylinder, without chucking and turning the part [tough on the rest of the chair and children run away ]?