Re: 2 1/4 Makita Router

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "JCullins"
<james_cullins@...> wrote:
The PMDX-121 or PMDX-122 can drive a solid state
relay from the outputs from pins 14 or 16 of the
printer port. You should select a solid state
relay rated for operation on 5 volts or less.
This will typically be a relay with an input
voltage range of 3 to 24 volts. The pin 14 or
pin 16 output should go to the + or Positive
input of the solid state relay and the - or
Negative input of the relay should be connected
to GND.

I would be concerned with using a solid state
relay with some routers. Those equipped with
variable speed and/or "soft start" may not
behave properly with a solid state relay. This
is because the solid state relay will conduct
a few micro-amperes of current even when "off"
and this is enough to confuse the electronics
inside the router. In this case I would recommend
using a "contactor" or power relay to boost the
rating of the stock relay on the PMDX-121 or
PMDX-122.

Regards,
Steve Stallings
www.PMDX.com

> Maybe you could turn a solid state relay on with the relay on the

PMDX-121

> board. Steve would probably have a solution for you.
> Jim
> On 10/9/2006 6:32:16 PM, fortyfingers@... wrote:
> > I
> > haven't used the Makita however I have been using a Hitachi m12v

which is

> > comparable. I've
> > been doing this for a year and a half. Variable speed from
> > 6 to 25 K rpm.
> > I'm cutting mostly birch plywood but also have done alot of
> > cutting of solid woods. My router is 11 amp. which makes for a

drawback as

> > the relay on the PMDX-121 Breakout board is only 10 amp.

Therefore I have been

> > manually turning the router on/off at the beginning/end of

cycles. Perhaps

> > someone out there knows of a work around that would let me use

M3/m4 and M5

> > commands for turning the spindle on/off.
> >
> > Somewhat related but slightly off topic is machining aluminum

with the

> > router. Does anyone know of a good place to go to, to get info

about feed

> > speeds, depth of cut and cutters for this? I have a couple of

modifications I'd

> >
> > like to make to my frame to allow working beyond the end of the x

axis so

> > that I
> > could machine dovetails etc.
> >
> > Thanks all, for two years of education
> > Sam
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yaho
>
> [Non-text portions of this message have been removed]
>