[Shop-talk] Making a hole

[Peter Murray]

I would think a slow spinning plunge-cutting bit (like one would use for
drywall hole cutting) would make a pretty clean hole without melting the
plastic.

Perhaps you can find a circular version? :)

-Peter

On Wed, Jun 20, 2012 at 5:24 PM, David Scheidt <dmscheidt at gmail.com> wrote:

> Router, or router like bit on dremel?
>
> On Jun 20, 2012, at 4:20 PM, "John T. Blair" <jblair1948 at cox.net> wrote:
>
> > I'm working on a project and using a 6"x4"x2"  "plastic"
> project/experimenters box from Radio Shack.  I'm trying to install some
> mini
> DB9 connectors in the ends of the box.
> >
> > <shop talk content>
> > I go down into my SHOP, and clamp the box in the vise.
> > <end shop talk content>
> >
> > After I scribe when the connector should go I've tried 2 methods for
> making
> the hole:
> >
> > 1. The first was to drill a hole to insert a saw into,  and then use a
> coping saw to cut it the hole.  This was very time consuming and tough on
> the
> box.  In fact I broke several.
> >
> > 2. The current method is to use a circular saw blade on my dremil tool,
> similar to:
> >
>
> http://www.sears.com/gyros-82-10715-saw-blade-w-mandrel-set-fine/p-0093117600
> 0P?prdNo=11&blockNo=36&blockType=G36<http://www.sears.com/gyros-82-10715-saw-blade-w-mandrel-set-fine/p-0093117600%0A0P?prdNo=11&blockNo=36&blockType=G36>
> >
> >    Once the hole is rough cut, I use a triangular file to clean it up and
> size the hole so the DB9 connector fits.
> >
> > I was wondering if anyone had a better idea of how to do this?
> >
> > John
> >
> > John T. Blair  WA4OHZ     email:  jblair1948 at cox.net
> > Va. Beach, Va                  Phone:  (757) 495-8229