Re: [Emc-users] Spindle Speed Control.

2019-10-11 Thread Erik Christiansen
On 05.10.19 15:20, John Dammeyer wrote: > > > > I�m using PWM with a direct signal and enable.My drive accepts 0-10V, > > so I > > created a little board that converts the PWN to a 0-10V analog signal and > > isolates all the signals. > > > > N. Christopher Perry > > That's basically what I

Re: [Emc-users] Spindle Speed Control.

2019-10-07 Thread Gene Heskett
On Monday 07 October 2019 14:57:17 Stuart Stevenson wrote: > https://m.youtube.com/watch?v=WRuh7zgnUa0 > > This, but with a single point you must helical for the entire thread > length. > > On Mon, Oct 7, 2019, 1:48 PM andy pugh wrote: > > On Mon, 7 Oct 2019 at 09:17, Stuart Stevenson wrote: >

Re: [Emc-users] Spindle Speed Control.

2019-10-07 Thread Stuart Stevenson
https://m.youtube.com/watch?v=WRuh7zgnUa0 This, but with a single point you must helical for the entire thread length. On Mon, Oct 7, 2019, 1:48 PM andy pugh wrote: > On Mon, 7 Oct 2019 at 09:17, Stuart Stevenson wrote: > > > John, > > We are talking about threading with the boring bar. Use a

Re: [Emc-users] Spindle Speed Control.

2019-10-07 Thread andy pugh
On Mon, 7 Oct 2019 at 09:17, Stuart Stevenson wrote: > John, > We are talking about threading with the boring bar. Use a boring bar in the > mill with a threading insert. You can thread any diameter OD Are you talking about this method? https://youtu.be/i4fTythQj5s?t=60 -- atp "A motorcycle i

Re: [Emc-users] Spindle Speed Control.

2019-10-07 Thread Stuart Stevenson
John, We are talking about threading with the boring bar. Use a boring bar in the mill with a threading insert. You can thread any diameter OD and any diameter the boring will fit in. For a round hole I would prefer a reamer or a boring bar in a boring head. thanks Stuart On Sun, Oct 6, 2019 at 4:

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread andy pugh
On Sun, 6 Oct 2019 at 15:43, John Dammeyer wrote: That's assuming you have 0 backlash or your backlash compensation works > perfectly as you move in and out of climb milling. I find I still get > better holes with a boring head for slip fitting ball bearing races for > example. I don't know h

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread John Dammeyer
One of the problems with the PMDX-126 BoB is that although it takes two parallel port connections the second port only brings the inputs out to opto isolated terminals on the edge of the BoB. The outputs (or alternatively inputs) are not brought out. Instead they go to a proprietary interfac

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread John Dammeyer
> On Sunday 06 October 2019 16:07:16 Stuart Stevenson wrote: > > > You don't need a boring head. An end mill adapter/holder will work > > just fine. > > > On Sun, Oct 6, 2019, 2:22 PM Gene Heskett > wrote: > I keep forgetting the circle can be drawn by a helical xy path, dropping > z at the righ

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread Gene Heskett
On Sunday 06 October 2019 16:07:16 Stuart Stevenson wrote: > You don't need a boring head. An end mill adapter/holder will work > just fine. I keep forgetting the circle can be drawn by a helical xy path, dropping z at the right pitch. Great idea Stuart, just haven't tried it yet. > On Sun, Oct

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread Stuart Stevenson
You don't need a boring head. An end mill adapter/holder will work just fine. On Sun, Oct 6, 2019, 2:22 PM Gene Heskett wrote: > On Sunday 06 October 2019 14:00:09 Stuart Stevenson wrote: > > > Gene, > > I frequently use a boring bar with a threading insert to thread mill > > threads. It is a on

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread Gene Heskett
On Sunday 06 October 2019 14:00:09 Stuart Stevenson wrote: > Gene, > I frequently use a boring bar with a threading insert to thread mill > threads. It is a one flute thread mill but it does a wonderful job and > is not expensive. You can cut OD and ID threads. > Works a treat. > If your mill does

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread Gene Heskett
On Sunday 06 October 2019 13:12:59 andy pugh wrote: > On Sat, 5 Oct 2019 at 14:20, Gene Heskett wrote: > > 0V-10V PWM? > > Check, delivered to the spindle circuitry of a mesa-7i76D > > I think that the output of a 7i76 is actually a digital potentiometer, > with no PWM stage involved. It's part o

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread Stuart Stevenson
Gene, I frequently use a boring bar with a threading insert to thread mill threads. It is a one flute thread mill but it does a wonderful job and is not expensive. You can cut OD and ID threads. Works a treat. If your mill doesn't have a spiral code then maybe your CAM package can output the motion

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread John Dammeyer
> -Original Message- > From: Andrew [mailto:pkm...@gmail.com] > I wouldn't worry about the min voltage. > IIRC every VFD has settings for voltage-rpm curve, so you can set 0rpm to > 0.5V or 1V, for instance. > The Bergerda AC Servo when connected to a Pot varying the voltage can turn e

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread Andrew
нд, 6 жовт. 2019 о 19:56 John Dammeyer пише: > > Yes but does it discharge to 0V or the is there a semiconductor junction > voltage drop involved. With an external pull-down resistor, over time the > cap would discharge back through the series resistor and the pull down > resistor. Now if the

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread andy pugh
On Sat, 5 Oct 2019 at 14:20, Gene Heskett wrote: > 0V-10V PWM? > Check, delivered to the spindle circuitry of a mesa-7i76D I think that the output of a 7i76 is actually a digital potentiometer, with no PWM stage involved. It's part of the smart-serial subsystem. -- atp "A motorcycle is a bicy

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread andy pugh
On Sun, 6 Oct 2019 at 10:56, John Dammeyer wrote: > > Yes but does it discharge to 0V or the is there a semiconductor junction > voltage drop involved. I haven't checked. I never need zero rpm out of my VFD except when it is off, and that's a separate set of on/off terminals. The data-sheet say

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread John Dammeyer
> -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: October-06-19 9:21 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Spindle Speed Control. > > On Sat, 5 Oct 2019 at 16:17, John Dammeyer > wrote: > > > T

Re: [Emc-users] Spindle Speed Control.

2019-10-06 Thread andy pugh
On Sat, 5 Oct 2019 at 16:17, John Dammeyer wrote: > That part is perfect. Didn't know there were opto's like that out there > that could have a VCC of 10V. I mainly selected it for the output driver, which actively discharges the cap through the resistor when off and charges when on. -- atp

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread John Dammeyer
> > I�m using PWM with a direct signal and enable.My drive accepts 0-10V, so I > created a little board that converts the PWN to a 0-10V analog signal and > isolates all the signals. > > N. Christopher Perry That's basically what I've drawn out too but I found the op-amp couldn't pull to gr

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread John Dammeyer
That part is perfect. Didn't know there were opto's like that out there that could have a VCC of 10V. Thanks John > -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: October-05-19 11:24 AM > To: Enhanced Machine Controller (EMC) > Subject

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread N. Christopher Perry
>> >>> If you are controlling the speed of your spindle with LinuxCNC instead of >>> just ON/OFF/DIR, how are you doing this? >>> >>> Step/Dir? >>> >>> 0V-10V PWM? I’m using PWM with a direct signal and enable.My drive accepts 0-10V, so I created a little board that converts the PWN to a

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Gene Heskett
On Saturday 05 October 2019 12:56:25 John Dammeyer wrote: > If you are controlling the speed of your spindle with LinuxCNC instead > of just ON/OFF/DIR, how are you doing this? > > Step/Dir? > > 0V-10V PWM? Check, delivered to the spindle circuitry of a mesa-7i76D, thence to an ebay vfd on my 604

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Jon Elson
On 10/05/2019 11:56 AM, John Dammeyer wrote: If you are controlling the speed of your spindle with LinuxCNC instead of just ON/OFF/DIR, how are you doing this? Well, on my Bridgeport mill, I use a spare channel of my analog DAC to deliver 0-10 V. On my minimill, I have the DC motor run of

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread andy pugh
On Sat, 5 Oct 2019 at 12:03, John Dammeyer wrote: > > How are you generating the 0-10V? Here is one way: https://photos.app.goo.gl/dR3dNvnnyuj31yQ37 In fact my mill might be using that. I would need to look :-) It's something that you can "dead-bug" and have in the middle of a cable in heat-s

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Sam Sokolik
0-10v + dir (pwm) Mesa. Smart serial 0-10v + dir (stepgen - f/v) cheap eBay Bob. On Sat, Oct 5, 2019, 1:03 PM John Dammeyer wrote: > > From: Sam Sokolik [mailto:samco...@gmail.com] > > 0-10v + dir (pwm) > > Smart serial > > 0-10v + dir (stepgen - f/v) > > How are you generating the 0-10V? > > >

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread John Dammeyer
> From: Sam Sokolik [mailto:samco...@gmail.com] > 0-10v + dir (pwm) > Smart serial > 0-10v + dir (stepgen - f/v) How are you generating the 0-10V? > > > On Sat, Oct 5, 2019, 11:59 AM John Dammeyer > wrote: > > > If you are controlling the speed of your spindle with LinuxCNC instead of > > jus

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread andy pugh
On Sat, 5 Oct 2019 at 10:59, John Dammeyer wrote: > If you are controlling the speed of your spindle with LinuxCNC instead of > just ON/OFF/DIR, how are you doing this? My lathe uses RS485 and the hy_vfd hal component. My mill uses analogue 0-10V from a Mesa card. The other way round would mak

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Sam Sokolik
0-10v + dir (pwm) Smart serial 0-10v + dir (stepgen - f/v) On Sat, Oct 5, 2019, 11:59 AM John Dammeyer wrote: > If you are controlling the speed of your spindle with LinuxCNC instead of > just ON/OFF/DIR, how are you doing this? > > Step/Dir? > > 0V-10V PWM? > > ModBus? > If ModBus RS232 or RS4

Re: [Emc-users] Spindle Speed Control.

2019-10-05 Thread Thaddeus Waldner
My spindle is driven by an Automation Direct GS2 drive. I am running it via Modbus over RS232. It seems to be working fine. I don’t have a spindle encoder installed. Modbus components in LinuxCNC are not real-time. I don’t know what that implies. Thaddeus Waldner Newdale School Elkton, SD 5702

Re: [Emc-users] Spindle speed control through G540 VFD output - Solved

2011-03-27 Thread Kirk Wallace
On Sun, 2011-03-27 at 13:40 -0700, Michael Jones wrote: ... snip > I went back and looked compared my wiring to the above text diagram from > Kirk and found I had things wired pin 7 and 9 reversed - fortunately I > didn't fry the G540 because of it. > > Thanks Kirk for the clue!!! > Michael I c

Re: [Emc-users] Spindle speed control through G540 VFD output - Solved

2011-03-27 Thread Michael Jones
>-Original Message- >From: Kirk Wallace [mailto:kwall...@wallacecompany.com] >Sent: Wednesday, March 16, 2011 3:35 PM >To: Enhanced Machine Controller (EMC) >Subject: Re: [Emc-users] Spindle speed control through G540 VFD output > >On Wed, 2011-03-16 at 21:05 +

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-24 Thread Michael Jones
-Original Message- From: Michael Jones [mailto:ma...@michaelandholly.com] Sent: Wednesday, March 16, 2011 7:59 PM To: 'Enhanced Machine Controller (EMC)' Subject: Re: [Emc-users] Spindle speed control through G540 VFD output -Original Message- From: Kirk Wallace [ma

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-19 Thread Stephen Wille Padnos
Michael Jones wrote: > I am about to start an upgrade to my system and am wondering if anyone has > already done this and has some pointers, or better yet, a detailed how-to. > How about a G54 stepconf file: Copy the file into ~/emc2/configs, ru

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread Peter Homann
gene heskett wrote: > On Wednesday, March 16, 2011 10:19:43 PM Kirk Wallace did opine: > In either event, as you say above, the control from the computer needs to > be isolated, the KBIC and look-a-likes all seem to have line voltages on > the control circuitry. I use a pwm signal for speed con

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread Michael Jones
-Original Message- From: Kirk Wallace [mailto:kwall...@wallacecompany.com] Sent: Wednesday, March 16, 2011 3:35 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Spindle speed control through G540 VFD output On Wed, 2011-03-16 at 21:05 +, andy pugh wrote: > On

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread gene heskett
On Wednesday, March 16, 2011 10:19:43 PM Kirk Wallace did opine: > On Wed, 2011-03-16 at 12:29 -0700, Michael Jones wrote: > > I am about to start an upgrade to my system and am wondering if anyone > > has already done this and has some pointers, or better yet, a > > detailed how-to. > > > > I ha

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread Peter Homann
Hi, Yes, the three VFD terminals of the G540 are isolated. You can use these VFD wires to connect to a VFD or DC motor controller in place of where the speed control potentiometer would go. Engineering note 10 on this link shows a schematic of such a G540 setup. http://homanndesigns.com/store/ind

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread Kirk Wallace
On Wed, 2011-03-16 at 15:35 -0700, Kirk Wallace wrote: ... snip > The PWM frequency will be determined by the thread rate that the PWM > component is loaded in - usually the servo thread or 1kHz (?). The G540 > doc hints at 50Hz, but I think it will work anyway. This is off the top > of my head, so

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread andy pugh
On 16 March 2011 22:35, Kirk Wallace wrote: > The PWM frequency will be determined by the thread rate that the PWM > component is loaded in No, thats's just not right. The PWM frequency is set by the frequency parameter, which I forgot to include in that HAL snippet. What you say might be true f

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread Kirk Wallace
On Wed, 2011-03-16 at 21:05 +, andy pugh wrote: > On 16 March 2011 20:50, Michael Jones wrote: > > > And yes, the pot is isolated as you've said. > > > > Does this mean that this upgrade is a "not recommended" or possibly > > hazardous direction, or just that there's more I need to do besides

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread andy pugh
On 16 March 2011 20:50, Michael Jones wrote: > And yes, the pot is isolated as you've said. > > Does this mean that this upgrade is a "not recommended" or possibly > hazardous direction, or just that there's more I need to do besides just > hooking up the VFD output pins from the G540 to make it

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread Michael Jones
-Original Message- From: Kirk Wallace [mailto:kwall...@wallacecompany.com] Sent: Wednesday, March 16, 2011 1:23 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Spindle speed control through G540 VFD output On Wed, 2011-03-16 at 12:29 -0700, Michael Jones wrote: > I

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread Kirk Wallace
On Wed, 2011-03-16 at 12:29 -0700, Michael Jones wrote: > I am about to start an upgrade to my system and am wondering if anyone has > already done this and has some pointers, or better yet, a detailed how-to. > I have a mini mill that's using a G540 controller run by the current version > of EMC

Re: [Emc-users] Spindle speed control through G540 VFD output

2011-03-16 Thread andy pugh
On 16 March 2011 19:29, Michael Jones wrote: > I've heard/read that the physical hook up is easy but I'm wondering about > what I have to do in EMC (Hal and such) to send the right signals to the > G540 to make it, in turn, send the right signals to the speed control board. If you set up the sys

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE

2010-08-09 Thread Igor Chudov
On Mon, Aug 9, 2010 at 7:40 PM, Greg Bentzinger wrote: > The Hurco KM3P has a setup somewhat like Igor's. > > In the KM3P (P denotes programmable spindle speed) there is a small 3ph motor > with a worm gear which drives the shaft where the crank handle would be on > your average BP type mill. >

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE

2010-08-09 Thread Greg Bentzinger
The Hurco KM3P has a setup somewhat like Igor's. In the KM3P (P denotes programmable spindle speed) there is a small 3ph motor with a worm gear which drives the shaft where the crank handle would be on your average BP type mill. There is a Voltac card which reads a single prox switch which coun

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Igor Chudov
Jon, yes, good point on brake. I also want to let the vfd to stop the spindle, and will use the brake for speed changes. On Aug 8, 2010 3:10 PM, "Jon Elson" wrote: Igor Chudov wrote: > Jon, what is FF? > > Anyway, I will start with easy buttons, such as BRAKE AUTO... Sorry, flip-flop. a mechani

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Jon Elson
Igor Chudov wrote: > Jon, what is FF? > > Anyway, I will start with easy buttons, such as BRAKE AUTO/OFF. > > But I want to do everything right when it comes to other things, such > as spindle speed control, etc. > Sorry, flip-flop. a mechanism that sets to one logic value on a particular trig

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Igor Chudov
I forgot to cancel SPEED INCREASE/DECREASE at the and of the pseudocode. Sorry! On Sun, Aug 8, 2010 at 1:51 PM, Igor Chudov wrote: > Guys, I am just thinking, perhaps what I am trying to accomplish > (speed change via varidrive), could be best accomplished via an M100 > command (shell script). Sh

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Igor Chudov
Guys, I am just thinking, perhaps what I am trying to accomplish (speed change via varidrive), could be best accomplished via an M100 command (shell script). Shell or perl scripts have access to hal, right? I would write something like (in pseudocode) $desired_speed = ARGV[0] $delta = max( 5, $des

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Andy Pugh
On 8 August 2010 19:08, Jon Elson wrote: > There is a spindle-at-speed function that could be used to decide when > the speed control logic has finished. I believe that is an input, used to feed-hold until the drive indicates that the spindle is at the correct speed. -- atp --

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Igor Chudov
On Sun, Aug 8, 2010 at 1:08 PM, Jon Elson wrote: > Igor Chudov wrote: >> Andy, my feeling on the matter, is that your solution is great. I >> should somehow activate these comparators for a short time after a >> speed change command (like for 7 seconds) and then disable them >> afterwards. That wa

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Stephen Wille Padnos
Jon Elson wrote: > Igor Chudov wrote: > >> Andy, my feeling on the matter, is that your solution is great. I >> should somehow activate these comparators for a short time after a >> speed change command (like for 7 seconds) and then disable them >> afterwards. That way reversing with a VFD, is

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Jon Elson
Igor Chudov wrote: > Andy, my feeling on the matter, is that your solution is great. I > should somehow activate these comparators for a short time after a > speed change command (like for 7 seconds) and then disable them > afterwards. That way reversing with a VFD, is not a problem. > There is

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Igor Chudov
On Sun, Aug 8, 2010 at 5:33 AM, Andy Pugh wrote: > On 8 August 2010 04:35, Igor Chudov wrote: > >> Say, I say S3000 and drill. Then I change tool to a tap and say S300 >> and rigid tap. To accomplish that, EMC would actuate SPEED DECREASE >> solenoid and wait until the output speed, as reported b

Re: [Emc-users] Spindle speed control with SPEED INCREASE/DECREASE solenoids and encoder

2010-08-08 Thread Andy Pugh
On 8 August 2010 04:35, Igor Chudov wrote: > Say, I say S3000 and drill. Then I change tool to a tap and say S300 > and rigid tap. To accomplish that, EMC would actuate SPEED DECREASE > solenoid and wait until the output speed, as reported by the encoder, > approximately equals the commanded spee

Re: [Emc-users] Spindle Speed Control

2008-07-02 Thread Kirk Wallace
On Tue, 2008-07-01 at 19:53 -0700, Terry wrote: > I got it to work with the scale of .00222 per Jon Elsen > My lack of output was because I didnt turn on the m5i20-dac-enable > Now I have +10VDCwith s5000m3 and -10VDC with s5000m4 > Most VFDs take +10 only --How can I get the voltage to only go > p

Re: [Emc-users] Spindle Speed Control

2008-07-01 Thread Jon Elson
Terry wrote: > I got it to work with the scale of .00222 per Jon Elsen > My lack of output was because I didnt turn on the m5i20-dac-enable > Now I have +10VDCwith s5000m3 and -10VDC with s5000m4 > Most VFDs take +10 only --How can I get the voltage to only go positive? Assuming that some digital o

Re: [Emc-users] Spindle Speed Control

2008-07-01 Thread Terry
I got it to work with the scale of .00222 per Jon Elsen My lack of output was because I didnt turn on the m5i20-dac-enable Now I have +10VDCwith s5000m3 and -10VDC with s5000m4 Most VFDs take +10 only --How can I get the voltage to only go positive? On Tue Jul 1 6:42 , Chris Radek <[EMAIL PRO

Re: [Emc-users] Spindle Speed Control

2008-07-01 Thread Chris Radek
On Tue, Jul 01, 2008 at 09:51:26AM +0300, anders wallin wrote: > > You probably want to re-scale the motion.spindle-speed-out before it > goes to the DAC pin that accepts values of -10 to +10, > For example is +10V would correspond to 3000rpm then you would divide > the spindle-speed-out with 30

Re: [Emc-users] Spindle Speed Control

2008-06-30 Thread anders wallin
> Hi > > I am trying to use the 4th axis on the m5i20 board as the +/-10VDC control > > for a frequency drive > > I have added these lines to my io file: > > #Spindle speed from DAC 03 scale 500 > > newsig spinspeed float > > linksp spinspeed <= motion.spindle-speed-out > > linksp spinspeed => m5i

Re: [Emc-users] Spindle speed control & fb

2008-04-29 Thread Stephen Wille Padnos
Dave Dyke wrote: >Hi >I am retrofitting a HES turning center with EMC2, using mesa 5i20 +7i33 >+7i37 >I have taken some lines from pluto hal file to get thread cutting and >connected the spindle encoder to enc-03, both threading and rigid tapping >are working. >But have been unable to get the s

Re: [Emc-users] Spindle speed control & fb

2008-04-29 Thread Ray Henry
Hi Dave What vintage and size machine is this. I used to service some of these with GE 1050 controls. I believe I still have Gettys drives and motors and a bunch of relays and such out in storage. Are you using the original spindle drive amp? Rayh On Tue, 2008-04-29 at 17:11 -0600, Dave D

Re: [Emc-users] Spindle speed control with cnc4pc board

2008-01-06 Thread Lester Caine
Peter Homann wrote: > Hi Lester, > > The DigiSpeed-GX board contains an isolated 5V to 15V dc/dc converter. It > accepts a PWM signal and converts it to an isolated DC control voltage > suitable for Asian DC motor controllers, and VFDs. > > http://homanndesigns.com/store/index.php?main_page=produ

Re: [Emc-users] Spindle speed control with cnc4pc board

2008-01-06 Thread Peter Homann
Hi Lester, The DigiSpeed-GX board contains an isolated 5V to 15V dc/dc converter. It accepts a PWM signal and converts it to an isolated DC control voltage suitable for Asian DC motor controllers, and VFDs. http://homanndesigns.com/store/index.php?main_page=product_info&cPath=1&products_id=21 Ch

Re: [Emc-users] Spindle speed control with cnc4pc board

2008-01-05 Thread Geert De Pecker
Lester, I first tried to get the required 12V from the kbic, but as this is only provided for with a zener (according to the schematics), it dropped to 6V as soon as the C11 board was connected. So bad option. As in the meantime the 5V-12V dc converter arrived (indeed from Farnell), I used that

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-29 Thread Geert De Pecker
Just had word from Arturo, maker of the C11 board that the fequency for full voltage is set to be 25KHz. Will need to investigate why I get nice results with 400Hz... Kirk Wallace wrote: > On Wed, 2007-12-26 at 23:18 +0100, Geert De Pecker wrote: >> Same here, but then again, the 400 Hz is the max

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-27 Thread rogerb
On Tue, 25 Dec 2007 23:19:49 -0600 Jon Elson <[EMAIL PROTECTED]> wrote: > Dave Engvall wrote: > > If anyone wants to etch a disc I can probably find an 30 mL or so > > of KPR. > > > KPR is abominable to work with. I have DuPont Riston dry film > photoresist. I have laminated it onto .005" and

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-27 Thread Lester Caine
Kirk Wallace wrote: > On Wed, 2007-12-26 at 21:07 +, Lester Caine wrote: >> Kirk Wallace wrote: >>> On Wed, 2007-12-26 at 17:22 +, Lester Caine wrote: Geert De Pecker wrote: > I probably wrongly assumed that the voltage should come from the KBIC > ... snip >>> How much adjustment

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Jon Elson
Gene Heskett wrote: > On Wednesday 26 December 2007, Dave Engvall wrote: > >>Hi Jon, >> >>Riston sounds like better stuff and easier to use. I think one gets >>sharper etching if the etchant is pumped over the foil. > > > Many years ago, we had a DEA spray etcher at the tv station where I got >

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Gene Heskett
On Wednesday 26 December 2007, Dave Engvall wrote: >Hi Jon, > >Riston sounds like better stuff and easier to use. I think one gets >sharper etching if the etchant is pumped over the foil. Many years ago, we had a DEA spray etcher at the tv station where I got started back in the early 60's. You

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Kirk Wallace
On Wed, 2007-12-26 at 23:18 +0100, Geert De Pecker wrote: > Same here, but then again, the 400 Hz is the maximum needed to get the > full analog voltage. So no problem here. > > The C11 board really needs a frequency, the pulse width is of very > little influence on the voltage. > ... snip It is

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Geert De Pecker
Same here, but then again, the 400 Hz is the maximum needed to get the full analog voltage. So no problem here. The C11 board really needs a frequency, the pulse width is of very little influence on the voltage. >>> Geert >> I checked the siggen setup on my test system and 480Hz was the highest >

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Geert De Pecker
Lester, This is indeed a solution. Thanks for the link. Lester Caine wrote: > http://cnc4pc.com/Tech_Docs/C11G_&_SIEG_X3_Electrical%20storybook.pdf > Check out page 7. > The thing to remember here is that the motor control pot on the Asian mills > is > at mains potential, so you need a totally

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Kirk Wallace
On Wed, 2007-12-26 at 12:28 -0800, Kirk Wallace wrote: > On Wed, 2007-12-26 at 20:21 +0100, Geert De Pecker wrote: > > Kirk, > > > > > The C11 document specifies three power supplies. One computer side +5V, ... snip > > > if I had enough money, I'd be rich. > > > > > > > At 400Hz I get the max

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Kirk Wallace
On Wed, 2007-12-26 at 21:07 +, Lester Caine wrote: > Kirk Wallace wrote: > > On Wed, 2007-12-26 at 17:22 +, Lester Caine wrote: > >> Geert De Pecker wrote: > >>> I probably wrongly assumed that the voltage should come from the KBIC ... snip > > How much adjustment will the potentiometer gi

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Lester Caine
Kirk Wallace wrote: > On Wed, 2007-12-26 at 17:22 +, Lester Caine wrote: >> Geert De Pecker wrote: >>> I probably wrongly assumed that the voltage should come from the KBIC >>> board. As you say, this would indeed be a flexible solution. Will look >>> out from such a converter. My controller ca

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Kirk Wallace
On Wed, 2007-12-26 at 20:21 +0100, Geert De Pecker wrote: > Kirk, > > > The C11 document specifies three power supplies. One computer side +5V, > > one CNC side +5V @ 2A and One CNC side +12V @ 300mA. I would think if > > you have satisfied these specifications, you should be okay. 12V should > >

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Geert De Pecker
Kirk, > The C11 document specifies three power supplies. One computer side +5V, > one CNC side +5V @ 2A and One CNC side +12V @ 300mA. I would think if > you have satisfied these specifications, you should be okay. 12V should > have enough headroom to regulate to 10 V and the VFD should only draw

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Kirk Wallace
On Wed, 2007-12-26 at 17:22 +, Lester Caine wrote: > Geert De Pecker wrote: > > I probably wrongly assumed that the voltage should come from the KBIC > > board. As you say, this would indeed be a flexible solution. Will look > > out from such a converter. My controller case is almost full, have

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Dave Engvall
Hi Jon, Riston sounds like better stuff and easier to use. I think one gets sharper etching if the etchant is pumped over the foil. I guess I'm pretty casual about solvents having worked with benzene above the permissible limit for several weeks each year. Anytime you can smell benzene you

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Lester Caine
Geert De Pecker wrote: > I probably wrongly assumed that the voltage should come from the KBIC > board. As you say, this would indeed be a flexible solution. Will look > out from such a converter. My controller case is almost full, have to > find some room to put this one in :-) Don't need much spa

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Kirk Wallace
On Wed, 2007-12-26 at 11:04 +0100, Geert De Pecker wrote: > I probably wrongly assumed that the voltage should come from the KBIC > board. As you say, this would indeed be a flexible solution. Will look > out from such a converter. My controller case is almost full, have to > find some room to put

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Geert De Pecker
I'm thinking of a 100 line encoder. Wouldn't require too much resolution. Tested from the rhino cad program and output seems very acceptable. But I assume for more then 200 line, it could be worse. Geert ben lipkowitz wrote: > On Mon, 24 Dec 2007, Geert De Pecker wrote: > >> To do threading on t

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-26 Thread Geert De Pecker
I probably wrongly assumed that the voltage should come from the KBIC board. As you say, this would indeed be a flexible solution. Will look out from such a converter. My controller case is almost full, have to find some room to put this one in :-) Lester Caine wrote: > Geert De Pecker wrote: >> N

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Jon Elson
Kirk Wallace wrote: > KPR? > > Kentucky Paranormal Research > Kawartha Pine Ridge District Public School Board Kodak Photo Resist, a Xylene-based organic photo resist that is hardened by exposure to UV light. It is very "old school" and not only requires nasty chemicals, but is quite fragile.

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Jon Elson
Dave Engvall wrote: > If anyone wants to etch a disc I can probably find an 30 mL or so of > KPR. > KPR is abominable to work with. I have DuPont Riston dry film photoresist. I have laminated it onto .005" and .003" brass shim stock with my dry film laminator machine. It has heated Silicon

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Dave Engvall
Good try. KPR is a photoresist made by Kodak. It is good enough to do wafers. It needs reasonably energetic UV to polymerize and then toluene to dissolve off the non-polymerized part for etching. D On Dec 25, 2007, at 4:15 PM, Kirk Wallace wrote: > KPR? > > Kentucky Paranormal Research > Kaw

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Kirk Wallace
KPR? Kentucky Paranormal Research Kawartha Pine Ridge District Public School Board On Tue, 2007-12-25 at 15:42 -0800, Dave Engvall wrote: > If anyone wants to etch a disc I can probably find an 30 mL or so of > KPR. > > For best resolution make a 4X image and then photoreduce 4X on to > film

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Dave Engvall
If anyone wants to etch a disc I can probably find an 30 mL or so of KPR. For best resolution make a 4X image and then photoreduce 4X on to film and use that to expose the KPR. It makes beautiful circuit boards that way. Dave On Dec 25, 2007, at 12:42 PM, ben lipkowitz wrote: > I would feel

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread ben lipkowitz
I would feel confident printing 256 lines on a 2 inch diameter encoder, with my 600 dpi HP laserjet 1018, but I haven't tried it out with a sensor yet. At 512 lines, the spacing between lines starts to look uneven. A 7 inch disc with 1024 lines looks pretty good. Kinko's has 1200 dpi laser prin

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Kirk Wallace
A while back, I tried printing an encoder with my CAD program. I didn't get very good results. My laser printer's resolution, which is great for printing documents, was lousy for encoders. What resolution and how small a disk is possible with your method? Although, I suppose for a spindle, a larger

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-25 Thread Gene Heskett
On Tuesday 25 December 2007, ben lipkowitz wrote: >On Mon, 24 Dec 2007, Geert De Pecker wrote: >> To do threading on the lathe is the end goal. I'm still in the >> development phase for the encoder bit. Want to make it myself >> (see part of drawing at http://users.skynet.be/gedp/FILES/index.html).

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-24 Thread ben lipkowitz
On Mon, 24 Dec 2007, Geert De Pecker wrote: > To do threading on the lathe is the end goal. I'm still in the > development phase for the encoder bit. Want to make it myself > (see part of drawing at http://users.skynet.be/gedp/FILES/index.html). Geert, There are some .ps files floating around

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-24 Thread Lester Caine
Geert De Pecker wrote: > Next problem: the analog voltage on the C11 board doesn't go to the max > input voltage. I measured the voltage across the sherline potentiometer > and it is 9.2 volts. With the bench supply set to 9.2 and attached to > the analog voltage of the board, the max output is 8.2

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-24 Thread Geert De Pecker
Kirk, You pointed me in the right direction. With siggen and scale, I was able to produce a frequency from the spindle control. I posted the mill.ini and mill.hal on http://users.skynet.be/gedp/FILES/index.html. The signal isn't very stable because I had to put it in the servo-thread (probably ne

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-24 Thread Geert De Pecker
Kirk, To do threading on the lathe is the end goal. I'm still in the development phase for the encoder bit. Want to make it myself (see part of drawing at http://users.skynet.be/gedp/FILES/index.html). Still some time away though. Yes the C11 is full throttle. If you're interested in the files,

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-24 Thread Kirk Wallace
On Mon, 2007-12-24 at 20:13 +0100, Geert De Pecker wrote: > Kirk, > > Thanks for the info. I'll check it out. > > I don't think we need 24kHz. The default pwm signal is 100Hz and gave me > 2.5 volts. I changed the frequence in the hal config to 200 Hz and the > output was approx 5V, so I guess th

Re: [Emc-users] Spindle speed control with cnc4pc board

2007-12-24 Thread Geert De Pecker
Kirk, Thanks for the info. I'll check it out. I don't think we need 24kHz. The default pwm signal is 100Hz and gave me 2.5 volts. I changed the frequence in the hal config to 200 Hz and the output was approx 5V, so I guess the max voltage on the C11 board is reached at 400Hz. Never experimetd wi

  1   2   >