Re: Pendant Design, was - Spindle Motor Control?

Have a look in the photos section on this group.
Under a folder called pendant is a fully programmable pendat that I
built a couple of years ago.
Can be fully programmed and have nested commands.
Uses all off the shelf components.

John S.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "deanc500
<deancouillard@s...>" <deancouillard@s...> wrote:

> Hi, I have been contemplating a programmable hand held pendant for
> some time now and I am at the point of laying out the keypad to get

a

> membrane switch pad manufactured. I will be offering these in small
> volumes at first to test the market. I would like to ask the group

for

> input on what the most useful functions would be. I agree with Bill

on

> his choices of E-stop, on the fly feedrate override, and axis

jogging.

> I would add "zero all axes", Home, slow/fast jog. What else would be
> useful. I am thinking that the pendant will have room for about 12
> functions and Estop.
> Thanks
> Dean
> Axxus Technologies
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Bill Blackburn"
> <blckburn@b...> wrote:
> > Hi Guys
> >
> > I have just started to convert a Bench style Mill/Drill to full

CNC and

> > have a couple of questions. I would like to add some features to

my

> > control system rather than having just a basic power supply.
> >
> > (A) First off the motor that drives the spindle is a 220 volt

capacitor

> > start. (It does Not have the mechanical starter switch) Is there

a way

> > to adjust the rpm of this type of electric motor. I understand

that you

> > can have the Software control the Electric Motor using one of the

wires

> > in the Printer Port, but I need to know what is required to

actually

> > control the Motor speed?
> >
> > (B) Secondly I would like to install a hand held control box like

what

> > you see on many Factory supplied milling machines. Here are some

of the

> > features I would like on this hand held control:
> >
> > (1) An Emergency stop button.
> >
> > (2) Speed Override. The ability to adjustable machining speed

(IPM)

> > while the Software is running.
> >
> > (3) Jog Control on all three axis. Have the ability to control

the

> > Servo Motors and move the "X", "Y" & "Z" axis for part set up.

(When

> > the Software is not controlling the Servo Motors)
> >
> > If you have any information (Schematics or Plans) or ideas on

designing

> > these options or know someone that has used them, I would be

interested

> > in hearing from you.
> >
> > Thanks in advance for the help.
> >
> > Best regards
> >
> > Bill Blackburn
> >
> >
> > PS: Other features which would be nice to have someday:
> >
> > (A) A probe for finding the edge (or center) of a part before

starting

> > to machine. (Setting the 0-0-0 of a part)
> > (B) The ability to record the dimensions (X,Y,Z) of a particular

part

> > with the use of a touch probe. (CAM)
> > (C) The ability to record your movements on a milling machine

while

> > operating it manually.
> > (D) The ability to use the Servo Motor Encoders for a DRO.

(Would be

> > great for manual machining)
> > (E) A devise you could connect to your control box/computer that

would

> > measure the different lengths of each tool.
> >
> > Lots of neat ideas. It's always nice to dream. :-)