Lead screw bearings and other things

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andyf:

--- Quote from: PeterE on October 02, 2011, 01:23:29 PM ---By the way, I will put the pegs in the saddle and keep the holes in the clamp block. Then I don't need to clear out swarf from the holes before attaching the clamp.
/Peter

--- End quote ---

Good thinking, Peter. That didn't occur to me when I suggested it.

Andy

Stilldrillin:

--- Quote from: andyf on October 02, 2011, 01:32:41 PM ---
--- Quote from: PeterE on October 02, 2011, 01:23:29 PM ---By the way, I will put the pegs in the saddle and keep the holes in the clamp block. Then I don't need to clear out swarf from the holes before attaching the clamp.
/Peter

--- End quote ---

Good thinking, Peter. That didn't occur to me when I suggested it.

Andy

--- End quote ---

As I was reading through. I was thinking the holes could be used for lubrication purposes....... :thumbup:

Didn't give any thought to the swarf! ::)

David D

PeterE:
Well, a small update on the saddle lock.

The pegs are in place in the saddle. They are made of old broken drill shanks and should be tough enough :)

The bits making up the lock looks as follows.

Three simple parts, the clamp, a screw, and the lock nut. Simple as that. Future will tell me if I should include a washer under the screw head. The clearance milled for the cross slide set screws had to be taken further down to make it possible to drop the clamp onto the pegs. But I kept a good bit as a "foot" thinking it will give better clamping.

The lock nut is designed in the same way as the Myford fixed steady making i possible to drop it right down onto the bed.

Here it is placed on top of the pegs.

Dropping it in place, the lock nut can be turned to bridge the bed gap.

... and finally, the lock is in place and tightened. The saddle does not move at all!

So, another required and useful little accessory made as a detour, but now I can get back to the project I was going to do!

Thanks for great ideas on the way! :bow:

BR

/Peter

Stilldrillin:
Very nicely shown Peter! :thumbup:

And, even more nicely done....... :clap: :clap: :D

David D

andyf:
That'll do nicely, Peter.

One final thought: use pliers to give the end thread on the clamp screw a bit of a squeeze to damage it ever so slightly. When the device isn't in use, vibration might lead to the lower component slowly unscrewing itself, and the damaged thread will stop it finally falling off into the swarf.

Andy.

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