Re: [CAD_CAM_EDM_DRO] Pendant Design, was - Spindle Motor Control?

Dean,

The one function that I would like to see is one that MultiCam has had for a
long time.

In their systems, (software and pendant) they have the ability to place a
puck under the router bit and by pressing a button on their pendant have the
Z axis slowly lower until an electrical contact has been made between the
end of the router bit and the top of the puck. The software then would do a
G92 with an offset the thickness of the puck.

Bob Campbell

----- Original Message -----
From: <deancouillard@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, March 04, 2003 10:59 AM
Subject: [CAD_CAM_EDM_DRO] Pendant Design, was - Spindle Motor Control?


> 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. :-)
>
>
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