MotoX
Cast Iron
- Joined
- Nov 14, 2011
- Location
- Enid, Oklahoma
Just as the title states, I would like to know the various methods of measuring the diameter/radius of fixtures we have.
Some of these fixtures have been here longer than i've been alive. The fixtures are supposed to represent one-half of a bored hole split on C/L with a tolerance of +.001" , -.000" on diameter.
These are usually in the 2.5" to 8" diameter range.
These fixtures are used in a single axis production horizontal boring machine. Heald bore-matics to be exact.
I need to make new ones and also trying to minimize waste. It would also help to be able to determine wear on the fixtures down the road.
In the past, i have just made an entire fixture then turned one half into chips.
My predecessor used to use a gage pin and a depth mic, but I've come to realize this is prone to error.
Half-height of the fixture is not as critical as the actual bore. I need the bore to be as close as possible for the best possible outcome(within reason) of the parts.
The final cut on the new fixtures is bored in situ in the machine with a short gage length boring bar.
Some of the parts have a wall thickness tolerance of +.0000" -.0005". Normal tol is +0.000"-.001".
I would like to hear any solutions you may have. I have mostly just basic hard gaging, but i am not against buying whatever i need to accurately measure these.
Thanks
Some of these fixtures have been here longer than i've been alive. The fixtures are supposed to represent one-half of a bored hole split on C/L with a tolerance of +.001" , -.000" on diameter.
These are usually in the 2.5" to 8" diameter range.
These fixtures are used in a single axis production horizontal boring machine. Heald bore-matics to be exact.
I need to make new ones and also trying to minimize waste. It would also help to be able to determine wear on the fixtures down the road.
In the past, i have just made an entire fixture then turned one half into chips.
My predecessor used to use a gage pin and a depth mic, but I've come to realize this is prone to error.
Half-height of the fixture is not as critical as the actual bore. I need the bore to be as close as possible for the best possible outcome(within reason) of the parts.
The final cut on the new fixtures is bored in situ in the machine with a short gage length boring bar.
Some of the parts have a wall thickness tolerance of +.0000" -.0005". Normal tol is +0.000"-.001".
I would like to hear any solutions you may have. I have mostly just basic hard gaging, but i am not against buying whatever i need to accurately measure these.
Thanks