Re: [CAD_CAM_EDM_DRO] Precision

Chris,

One of the first things that you need to do when building a cnc router or
any cnc system is to make sure that every thing is square.

On a cnc router, just create a square and drill four holes, one at each
corner.Then measure the diagonal. If they are not equal, then the system is
not square.

On my system it is very easy to square up my table by racking the bridge
supports.

On a gantry system driven from both sides some software like the cnc
controller from Microsystems has a special racking routine that is done when
your system is homed.

Commercial system like the Multicam system also use automatic racking.

Bob Campbell

----- Original Message -----
From: "Chris Clough" <cclough@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, December 06, 2001 8:07 PM
Subject: [CAD_CAM_EDM_DRO] Precision


> Ok... doing some testing with the CNC, just trying to figure out my
> error in the building of the table.
> My y-gantry works quite well, very straight cuts. I'm using a plasma
> torch for the cutting system by the way. My problem is when cutting a
> square two edges are perfectly parallel, but the other two are angle
> (1/32" deviance).
> So... is this problem in the x-axis? It usually occurs when it's going
> that direction (table wise)
> Any help would be great,
> -Chris Clough
> Xtech Engineering
>
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