- Joined
- Dec 18, 2019
- Messages
- 6,586
For diameters less than or equal to 32mm, I can use a collet. What do you do for larger diameters?
I really want to face off the ends, but at the moment I can't hold the cylinder true. The chuck jaws dig into the soft material and even if I bump the cylinder true, any loading force due to a slight cutting cutting force throws if off true.
I tried a live center, but the center is in the way of where I want to cut. I then thought about a steady rest, but mine has bronze fingers and would eat through the plastic. My steady rest also seems to need repairs. I tried it and it didn't operate easily. There was paint in places that shouldn't be there (from the factory!) so it would need some work to move smoothly.
Do you recommend a sleeve to spread out the clamp force at the chuck? The object I want to true is 40mm in diameter and about 165mm long. Would a bored out tube with a slit hold this "well enough" to get a light facing pass on the end? Is about 50mm long enough to work? Any hints would be helpful. It was disheartening to see this tube having 2-3mm of run out at the end I wanted to clean up. It's not off that far, by a long shot.
I really want to face off the ends, but at the moment I can't hold the cylinder true. The chuck jaws dig into the soft material and even if I bump the cylinder true, any loading force due to a slight cutting cutting force throws if off true.
I tried a live center, but the center is in the way of where I want to cut. I then thought about a steady rest, but mine has bronze fingers and would eat through the plastic. My steady rest also seems to need repairs. I tried it and it didn't operate easily. There was paint in places that shouldn't be there (from the factory!) so it would need some work to move smoothly.
Do you recommend a sleeve to spread out the clamp force at the chuck? The object I want to true is 40mm in diameter and about 165mm long. Would a bored out tube with a slit hold this "well enough" to get a light facing pass on the end? Is about 50mm long enough to work? Any hints would be helpful. It was disheartening to see this tube having 2-3mm of run out at the end I wanted to clean up. It's not off that far, by a long shot.