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J Tiers
02-24-2008, 07:05 PM
This little item seems pretty useful for taper work.

http://img.photobucket.com/albums/0803/jstanley/indi-tip1.jpg

It goes on the end of the indicator stem, and relieves you of the worry of getting the tip right on center. (if the tip isn't on-center, the taper may not be correctly sensed). Since the edge is vertical, and fairly long, if you are a little high or low it will still pick up the outermost portion of the round taper.

I made the edge perfectly perpendicular to the stem, although that may not be absolutely necessary. Assuming the carriage does not rise or fall as it moves, any contact point should be good. A very small error would result from the slight low or high contact if the edge is not perpendicular.

Unlike a disc tip, it is not sensitive to angle vs taper.

In use:

http://img.photobucket.com/albums/0803/jstanley/indi-tip2.jpg

(ignore the fact that the compound is NOT being adjusted parallel to the taper.... for illustration only)

Your Old Dog
02-24-2008, 07:24 PM
You might also try painting the edge with magic marker and then taking a run down the taper to see how wide the scratch is in the marker coloring.

J Tiers
02-24-2008, 07:55 PM
You might also try painting the edge with magic marker and then taking a run down the taper to see how wide the scratch is in the marker coloring.

????????????????????????????????????????????

means what?

BTW already did that, and it's quite narrow, almost just a scratch, even though marker ink has appreciable thickness until it has completely dried (takes more time then you think).

BobWarfield
02-24-2008, 10:10 PM
Nice gizmo, JTiers.

Best,

BW

darryl
02-24-2008, 10:50 PM
I don't see a problem with that- good idea. I could use that myself.