On Tuesday 24 October 2017 15:20:33 jrmitchellj . wrote:
> I am working on a Jet JTM-2 (Bridgeport clone from Taiwan).
> Re-fitted with a 3hp 3ph spindle motor, and axis kits for motorizing
> X, Y, & Z from Elrod Machine Works in Arizona.
> Originally was going to build them myself, but thought
I am working on a Jet JTM-2 (Bridgeport clone from Taiwan).
Re-fitted with a 3hp 3ph spindle motor, and axis kits for motorizing X, Y,
& Z from Elrod Machine Works in Arizona.
Originally was going to build them myself, but thought about the hours
required, and felt the Elrod kits were well
Maybe like $7 then connected via SPI with integrated driver. Integrated in
micro controller is cheaper but then two drivers are required which increase
price.
For $1 - $3 it is possible to get good micro controller for control of hardware
(servo motors), the more expensive is needed then
What is the cost of an Ethercat chip ?
Dave
On 10/24/2017 11:48 AM, Nicklas Karlsson wrote:
Hardware for master is hard to find because you don't need it. Any normal
Ethernet port works. Master is a software-only solution.
Time triggered transmit would be useful to get perfect timing and
On Tuesday 24 October 2017 10:23:13 Peter C. Wallace wrote:
> On Tue, 24 Oct 2017, John Kasunich wrote:
> > Date: Tue, 24 Oct 2017 08:47:02 -0400
> > From: John Kasunich
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To:
On Tuesday 24 October 2017 09:54:23 jrmitchellj . wrote:
> I would thin a 1HP drive should be able to plow through and thread a
> 3.8" hole without much grief, especially in low gear.
>
I have the servo amp current limit set at around 15 amps, and I can hear
it squeaking as it regulates under a
On Tuesday 24 October 2017 08:47:02 John Kasunich wrote:
> On Tue, Oct 24, 2017, at 08:14 AM, andy pugh wrote:
> > On 24 October 2017 at 12:10, Gene Heskett
wrote:
> > > Correct, except encoder.nn.velocity is fed thru a last 4 edges
> > > averager to remove some of the
> Hardware for master is hard to find because you don't need it. Any normal
> Ethernet port works. Master is a software-only solution.
Time triggered transmit would be useful to get perfect timing and fully utilize
bandwidth.
> You can choose a simple less redundant network topology.
On Tuesday 24 October 2017 08:14:25 andy pugh wrote:
> On 24 October 2017 at 12:10, Gene Heskett wrote:
> > Correct, except encoder.nn.velocity is fed thru a last 4 edges
> > averager to remove some of the noise in the encoders output. That
> > unforch also affects the
On Tue, 24 Oct 2017, John Kasunich wrote:
Date: Tue, 24 Oct 2017 08:47:02 -0400
From: John Kasunich
Reply-To: "Enhanced Machine Controller (EMC)"
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] One final Q re using a dc
I would thin a 1HP drive should be able to plow through and thread a 3.8"
hole without much grief, especially in low gear.
I have not set up my system for low range yet. Allot to think about on
that. Still working on the basic system & bugs.
I was just thrilled to get the speed indicator and
On Tue, Oct 24, 2017, at 08:14 AM, andy pugh wrote:
> On 24 October 2017 at 12:10, Gene Heskett wrote:
>
> > Correct, except encoder.nn.velocity is fed thru a last 4 edges averager
> > to remove some of the noise in the encoders output. That unforch also
> > affects the
On 24 October 2017 at 12:10, Gene Heskett wrote:
> Correct, except encoder.nn.velocity is fed thru a last 4 edges averager
> to remove some of the noise in the encoders output. That unforch also
> affects the spindle to Z phaseing in the G33.1 backout.
You might want to
On Tuesday 24 October 2017 04:45:14 andy pugh wrote:
> On 24 October 2017 at 02:06, Gene Heskett wrote:
> > So does anyone here have a working spindle "net" stanza that runs it
> > in velocity mode via a PDM signal? One you can post?
>
> The type of spindle and how it is
On Tuesday 24 October 2017 03:18:43 jrmitchellj . wrote:
> Hi Gene.
> Here is the spindle stuff I got working on Sunday.
> Not sure it is exactly what you are looking for, but it may spark some
> ideas for you.
> Also, it may still need some work!
>
> Ray
>
> --J. Ray Mitchell Jr.
>
On 24 October 2017 at 02:06, Gene Heskett wrote:
>
> So does anyone here have a working spindle "net" stanza that runs it in
> velocity mode via a PDM signal? One you can post?
The type of spindle and how it is controlled has absolutely no bearing
on how you do this.
You
Hi Gene.
Here is the spindle stuff I got working on Sunday.
Not sure it is exactly what you are looking for, but it may spark some
ideas for you.
Also, it may still need some work!
Ray
--J. Ray Mitchell Jr.
jrmitche...@gmail.com
(818)324-7573
The dogmas of the quiet past, are inadequate to the
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