Re: no thrust bearing

>How does one attach a leadscrew/threaded rod to a thrust bearing?
>Does one just make sure that the diameters are a tight fit, or are
>there screws to tighten or something?

"Probably not screws, but you might use a collar, which then forms
the surface pushing against the thrust bearing."

Ahh! How about this simple method. I get a threaded rod ====== ,
screw in a bolt () at one end, insert the screw into a (any) bearing
% sitting in machine housing, screw in another bolt (), with some
screw thread left over for the coupling to the shaft. Then the 2
bolts will hold the bearing firmly in between them.

========()%()===

How does that sound for a quickie no fuss solution for a beginning?

"Many people use a flexible coupling of some sort, since it makes the
stepper alignment a little less critical."

Flexible coupling like the tubing for domestic cooking gas?

"I'm not sure of the real question."
"drill rod is a good quality steel, not particularaly straight ....."

I sort of guess that drill rod is toolsteel for making drill bits?
But what I was getting at is I think drill rod is American Lingo.
Don't know what they call it here, and don't think they have it
anyway because most people don't know what a drill rod is.

"Regarding thrust bearings, you can make a block with a bearing for
the axial load, and attach plates then add thrust bearings. Thrust
bearings are often very very inexpensive so if you have the ability
to use them, do so."

How about the scheme I described above as a subsitute. Haven't used
thrust bearing before.

"mcmaster-carr can be very helpful here and still be done cheap...I
just added new trust washers to my Y and they cost 5 bucks for the
12mm size...two needed"

When will McMaster-Carr go international - like Farnell or something?
Hopefully before I retire as as cadcamoholic.

Andrew