Re: [CAD_CAM_EDM_DRO] Re: extending linear rail by butting two pieces together

Eric,

I had some THK 15's machined on the ends, was quite easy according to the
guy who did them, No grinding required. He first took a file and scratched
the back of the rail, then declared he could do it without a problem.

Bill

> Eric,
>
> Aligning two pieces of THK on an 80/20 extrusion should not be a problem.
> From my experience, the THK rails on my 80/20 seem to self align.
>
> For two sections, I would first try them without grinding the ends. The
> chamfer that they put on them is very small. If at that point you are not
> happy with it, you could have the ends ground.
>
> Bob Campbell
>
>
> > Just curious - have the same situation (20mm THK rail). I have a
> > sherline mill, and wondering if i can just mill the ends off square?
> > I have called a few machine shops in the area, and they have either
> > said 'you need to grind them' or 'i have never heard of THK square
> > rails, are you sure they arent round?'
> >
> > Also - mounting to 8020 extrusion, and curious if there are tricks to
> > keeping the 'butt' aligned. (w/ key pushing the ends together,
> > etc...)
> > Thanks!
> > Eric