Re: [CAD_CAM_EDM_DRO] Re: one for the math gurus.....Squaring an Axis

IMService wrote:

>1) Mount a rail on your machine table and machine it parallel to the X axis
>
>

Got that ! I installed a fence all along the X axis long ago and skimmed
it. Nothing has moved in that area for years.

>
>2) Now cut out a square piece, 1/2 x 12 x 12 inches,(snip)
>

> and rotate the square piece 90 degrees
>

>(snip)4) Run a test indicator along the side parallel to the Y axis. Adjust the Y axis to remove 1/2 the out of parallel condition.(snip)
>
>5) Cut another square and check it the same way.
>

(snip)
That sounds about as quick as anything I guess. And of course, it makes
perfect sense. I can use a slightly helical bit to avoid any ripple
along the edge of the cut so the indicator stays straight....

To adjust a small amount in regards squaring my gantry, I "block" one
end from moving, then on the other end, I take a known dimensional shim
stock piece that matches the distance I need to move, and place it
between the gantry upright and another clamped block on the side I need
to move towards. I then "pull" out the shim stock and move the gantry
that exact distance. Works pretty well, though I think on my next
design, I will install a "screw" method for this adjustment. Then all
you need to do is set your dial up, loosen the gantry, and adjust into
place.

Thanks Fred, I'll give this one a go. Still looking for the Mathematical
equation.... That should be possible too.

Chris L