[RHT]

I need to measure equalateral triangle material from 0.025 to 0.5". I know that a V anvil micrometer measures the diameter but I need the triangle height. Any suggestions as to where I can get a micrometer that would do what I need?

Thanks

[txcncman]

You said equilateral. You use a 0-1" micrometer and measure from the flat on one side to the point on the other. Use your geometry and trigonometry skills to calculate the sides.

[RHT]

Thank you for the quick reply. However the material being measured is not stiff enough to withstand a micrometer's pressure when measuring the apex. I need a v shaped anvil so that the sides support the item and the measurement is taken on a flat.

[CNCRim]

what is the material you machine?

[RHT]

Bamboo p

[tmcallister74]

Comparator?

[txcncman]

Why in the world do you need to measure a triangle of bamboo with more than 0.001"-0.002" accuracy?

[RHT]

I know that it is hard to fathom but when you are mak:stickpokeing split cane bamboo rods the tip dimension for one of the splines can be as small as 0.025 and we tolerances to 0.001. 6 thou is a fulll line weight and the ptj side is very spongy so taking ameasurement on that apex is suspect.

[txcncman]

What about an indicator on a surface plate then?

[txcncman]

The final answer is to just make yourself a custom anvil to fit on a micrometer. Oh, and just do the calculation to convert the micrometer reading to the actual size.

[easymike29]

Calculate the inscribed circle of the triangle you are attempting to measure. Place a gage pin of that size in the V of the micrometer. Close the anvil on the pin. Note the reading. That is your new "zero".

Gene