A down and dirty square test is scrible a line flip over the square and try to scribe a 90 from the other side. This usually shows any out of square problems, but then yup you do need a second opinion to see if it is really 90.
Thanks Rick, I think a new folk might have learned a thing or two!
Wonk
--- In gingery_machines@yahoogroups.com, Ron Thompson <ron@...> wrote:
>
> On 5/29/2011 7:06 PM, RG Sparber wrote:
> >
> > This is another in my sequence of article for people new to our hobby. I
> > deal with the cutting of an angle bracket on a mill/drill. If you are
> > interested, please see
> >
> > http://rick.sparber.org/mab.pdf
> >
> > Your questions and comments are welcome. All of us are smarter than
> > any one
> > of us.
> >
> > Rick
> >
> Rick,
> You do know that type of square is adjustable, right? You need two of
> them to check the accuracy of the 90 degrees.
> In using this for a standard, you should start by truing the square.
>
> --
>
>
> Ron Thompson
> On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA
>
> There are two kinds of posts on newsgroups.
> 1. This is what I have done...
> 2. This is what I think...
> Be aware of the difference!
>
> http://www.ourcadguy.com/
>
> http://www.plansandprojects.com My hobby pages are here:
> http://www.plansandprojects.com/My%20Machines/
>
> Visit the castinghobby FAQ:
> http://castinghobbyfaq.bareboogerhost.com/
>
>
>
>
>
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>
>
> [Non-text portions of this message have been removed]
>
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