Ig, I can make or buy the encoder I need for my spindle, but I have a
question about reading the quadrature signals.

What sort of input board (for the encoder) did you use when you did the EMC
rigid tapping conversion?

Also, I can't seem to find the detail on whether or not you used the old
servo motors, or replaced them with newer technology.


LLoyd

On 2011-07-01, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ig, I can make or buy the encoder I need for my spindle, but I have a
question about reading the quadrature signals.

What sort of input board (for the encoder) did you use when you did the EMC
rigid tapping conversion?

I used Jon Elson's PPMC. US Digital encoders (e7? I am driving)

Also, I can't seem to find the detail on whether or not you used the old
servo motors, or replaced them with newer technology.

I used the old servos. They are actualy great. Nothing wrong with them
at all. Plus, DC drives are cheap and plentiful and compatible with
any DC motor of proper rating.

i

Ignoramus2853 fired this volley in
:

I used Jon Elson's PPMC. US Digital encoders (e7? I am driving)



Thanks! E5 on the encoder.

LLoyd

On Fri, 01 Jul 2011 12:41:08 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

Ig, I can make or buy the encoder I need for my spindle, but I have a
question about reading the quadrature signals.

What sort of input board (for the encoder) did you use when you did the EMC
rigid tapping conversion?

Also, I can't seem to find the detail on whether or not you used the old
servo motors, or replaced them with newer technology.


LLoyd

Anyone need a nearly new "reSolver"?

Its simply for shipping. Looks like an encoder.


Gunner

--
Maxim 12: A soft answer turneth away wrath.
Once wrath is looking the other way, shoot it in the head.

On 07/01/2011 12:41 PM, Lloyd E. Sponenburgh wrote:
Ig, I can make or buy the encoder I need for my spindle, but I have a
question about reading the quadrature signals.

What sort of input board (for the encoder) did you use when you did the EMC
rigid tapping conversion?

Also, I can't seem to find the detail on whether or not you used the old
servo motors, or replaced them with newer technology.
I have several boards that can do this, the PPMC that Iggy used (for
analog-input servo amps), the Universal Stepper Controller (for any
drives that take step and direction signals) and the Universal PWM
Controller (for drives that take a digital PWM signal).

You also need a spindle index signal for multi-pass threading.

Jon

On 2011-07-01, Jon Elson wrote:
On 07/01/2011 12:41 PM, Lloyd E. Sponenburgh wrote:
Ig, I can make or buy the encoder I need for my spindle, but I have a
question about reading the quadrature signals.

What sort of input board (for the encoder) did you use when you did the EMC
rigid tapping conversion?

Also, I can't seem to find the detail on whether or not you used the old
servo motors, or replaced them with newer technology.
I have several boards that can do this, the PPMC that Iggy used (for
analog-input servo amps), the Universal Stepper Controller (for any
drives that take step and direction signals) and the Universal PWM
Controller (for drives that take a digital PWM signal).

You also need a spindle index signal for multi-pass threading.

By the way Jon, it is rigid tapping that I brag the most about when I
talk about my conversion to people who actually know machining.

i

On Fri, 01 Jul 2011 15:30:00 -0500, Ignoramus2853
wrote:

On 2011-07-01, Jon Elson wrote:
On 07/01/2011 12:41 PM, Lloyd E. Sponenburgh wrote:
Ig, I can make or buy the encoder I need for my spindle, but I have a
question about reading the quadrature signals.

What sort of input board (for the encoder) did you use when you did the EMC
rigid tapping conversion?

Also, I can't seem to find the detail on whether or not you used the old
servo motors, or replaced them with newer technology.
I have several boards that can do this, the PPMC that Iggy used (for
analog-input servo amps), the Universal Stepper Controller (for any
drives that take step and direction signals) and the Universal PWM
Controller (for drives that take a digital PWM signal).

You also need a spindle index signal for multi-pass threading.

By the way Jon, it is rigid tapping that I brag the most about when I
talk about my conversion to people who actually know machining.

i
Ditto, I never tire of watching a machine tap. Multipass threading on
the lathe 500 RPM is pretty neat too.

Karl

"Karl Townsend" wrote in message
...
On Fri, 01 Jul 2011 15:30:00 -0500, Ignoramus2853
wrote:

On 2011-07-01, Jon Elson wrote:
On 07/01/2011 12:41 PM, Lloyd E. Sponenburgh wrote:
Ig, I can make or buy the encoder I need for my spindle, but I have a
question about reading the quadrature signals.

What sort of input board (for the encoder) did you use when you did the
EMC
rigid tapping conversion?

Also, I can't seem to find the detail on whether or not you used the
old
servo motors, or replaced them with newer technology.
I have several boards that can do this, the PPMC that Iggy used (for
analog-input servo amps), the Universal Stepper Controller (for any
drives that take step and direction signals) and the Universal PWM
Controller (for drives that take a digital PWM signal).

You also need a spindle index signal for multi-pass threading.

By the way Jon, it is rigid tapping that I brag the most about when I
talk about my conversion to people who actually know machining.

i
Ditto, I never tire of watching a machine tap. Multipass threading on
the lathe 500 RPM is pretty neat too.

Karl

The first threads I cut on my lathe conversion was around 800RPM, pretty
awesome. I turned down a cylinder end for 1" to 3/4" and threaded it
3/4-16, including manual tool change, in under 3 minutes.

RogerN

"RogerN" fired this volley in
m:

The first threads I cut on my lathe conversion was around 800RPM, pretty
awesome. I turned down a cylinder end for 1" to 3/4" and threaded it
3/4-16, including manual tool change, in under 3 minutes.

RogerN

Roger, please tell me all about your conversion. That's what I'm creeping
up on doing right now. I'm trying to get all my 'stuff' ready before I
start, because I cannot afford to be without the lathe for more than a
week, or so.

LLoyd

On Sat, 2 Jul 2011 16:27:28 -0500, "RogerN" wrote:

i
Ditto, I never tire of watching a machine tap. Multipass threading on
the lathe 500 RPM is pretty neat too.

Karl

The first threads I cut on my lathe conversion was around 800RPM, pretty
awesome. I turned down a cylinder end for 1" to 3/4" and threaded it
3/4-16, including manual tool change, in under 3 minutes.

RogerN

http://www.youtube.com/watch?v=etLSxAV15lQ
http://www.vimeo.com/7692653

This is a rather interesting point of view..
http://www.youtube.com/watch?v=0q_q5...eature=related


And then for those who like larger lathes......

http://www.youtube.com/watch?v=U5JN4...eature=related


--
Maxim 12: A soft answer turneth away wrath.
Once wrath is looking the other way, shoot it in the head.

Ignoramus2853 wrote:


By the way Jon, it is rigid tapping that I brag the most about when I
talk about my conversion to people who actually know machining.

Yup, not too many home shops have rigid tapping. Mach doesn't
support, it, either. At the CNC Workshop, the owner of Tormach came
over and asked, so I showed him the rigid tapping routine. I wasn't
going to rub his nose in it unless he asked.

I just did 228 4-40 holes with a combination drill-tap. I'd sure hate
to do all that by hand, or have to spot, drill through and tap in 3 steps.

Jon