Spindle liners?

[DerekSSS]

We have a 3" opening in our drawtube and we are going to have to line a piece of 7/8 square.

I looked a trustycook.com for a custom liner but it was nearly 400$

I am only going to be running 200 SF/pm and basically just parting this part off.


Am I crazy to think I can get away with using a noodle like you use to see at the pool as a liner?

Oh and I'll be using a bar puller.

[gizmo_454]

Try using a round liner that is approximately the same size as the diameter of the square across the points. That usually works for me.

Good luck,

Mike

[underthetire]

Do it right. You can make your own, but remember, if the bar whips it can take out the chuck actuator ( seen that more than once). 400 bucks will seem very cheap then.

[double a-ron]

I make all my own out of pvc pipe from the harware store, allthoug a noodle should work fine if it fits snugly inside the spindle and around the material. The ones from Haas are overpriced garbage. The 1" liner has a 1.06 id so I can't run the spindle to 4k with a 5' bar.

[underthetire]

We used to buy them from Lucy's machine in the so cal area when i worked for the distributor. Don't know if they are still around or not, but they made nice ones. PVC works for shorter run stuff, no problem.

[DerekSSS]

It is square bar so I want to run as fast of rpm as possible over the rough portion to save cutters.

But doing to math at .875 with 200 SF/pm thats only around 1200 RPM through the rough.

[gizmo_454]

Do it right? Why would anybody want to do that? LOL

Seriously, though, for the SL-20 and bigger, there is supposed to be some kind of setup for taking discs and spacers. The discs being machinable for what you need and the spacers for spreading them out.

I only said to use a round one that fits the outer corners because that is what I have to do. I have not been able to find anything at all that will work with our SL-10. So all I have is the Haas junk to work with.

That being said, I severely limit my RPM from 6000 to 3000 or 3500 for most jobs. If I need to go faster with small bar, I will run it up to 4500. Above that, I experience servo lag so a 6000 rpm spindle is pointless. Even then, I have to cut the bars to 2 feet long if they are 1.25" or larger. That really sucks.

Not trying to hijack the thread, but if anyone has better ideas for SL-10's let me know. I would dearly love to not have to cut my bars off that short.