Re: [Emc-users] Chinese grease zerk. 6mm

2013-02-07 Thread andy pugh
On 8 February 2013 07:21, Gene Heskett wrote: > Does anyone know the tpi or tpmm of those miniature zerks on Chinese ball > nuts is? Its 5.75mm for the major thread diameter, so I assume they might > be able to call it a 6mm thread, but it is obviously a coarser tpmm than > the 6x1mm's bolts I h

Re: [Emc-users] Signal generator for induction heating

2013-02-07 Thread andy pugh
On 8 February 2013 00:29, Sebastian Kuzminsky wrote: > Maybe a stepgen component in quadrature mode? That would let you easily > control the frequency of the output signal. That would be 90 degrees phase-shift I think, so not quite right. siggen might be the way to go. I think there are bridge

Re: [Emc-users] Signal generator for induction heating

2013-02-07 Thread Dave
On 2/7/2013 10:39 PM, Erik Christiansen wrote: > On 07.02.13 19:04, Leonardo Marsaglia wrote: > >> The basic thing that I need is a Square wave generator, that outputs 2 >> signals one at 180º from the other, and with a duty cycle less than 50%. >> This is to avoid complications with the switch

[Emc-users] Chinese grease zerk. 6mm

2013-02-07 Thread Gene Heskett
Greetings; Does anyone know the tpi or tpmm of those miniature zerks on Chinese ball nuts is? Its 5.75mm for the major thread diameter, so I assume they might be able to call it a 6mm thread, but it is obviously a coarser tpmm than the 6x1mm's bolts I have. I am considering making an adapter

Re: [Emc-users] Missing velocity of motion in axis's DRO

2013-02-07 Thread Gene Heskett
On Thursday 07 February 2013 22:45:16 Chris Morley did opine: Message additions Copyright Thursday 07 February 2013 by Gene Heskett > > From: ghesk...@wdtv.com > > To: emc-users@lists.sourceforge.net > > Date: Thu, 7 Feb 2013 08:14:54 -0500 > > Subject: [Emc-users] Missing velocity of motion in ax

Re: [Emc-users] Signal generator for induction heating

2013-02-07 Thread Erik Christiansen
On 07.02.13 19:04, Leonardo Marsaglia wrote: > The basic thing that I need is a Square wave generator, that outputs 2 > signals one at 180º from the other, and with a duty cycle less than 50%. > This is to avoid complications with the switching transistors. I'm almost > sure that hal could do this,

Re: [Emc-users] Signal generator for induction heating

2013-02-07 Thread Dave
I retrofit an induction heat treat machines that operates in exactly the same manner. The machine I worked on was made by Inductoheat. I replaced the motion controller with a PC running Mach3 ( this was years ago.. before I saw the light.. ;-) ) I tied into the existing heater controls. Be

Re: [Emc-users] Signal generator for induction heating

2013-02-07 Thread Leonardo Marsaglia
Hello Sebastian. I missed that. That would easier to do, since I can modify the step lenght to use the duty cycle I want. Controlling the velocity to vary the frequency, that seems pretty doable for me. The frequencies that I need to handle are from 10 Khz to 50 Khz, so that would no be a problem

Re: [Emc-users] Signal generator for induction heating

2013-02-07 Thread Sebastian Kuzminsky
On 2/7/13 15:04 , Leonardo Marsaglia wrote: > I was thinking and this is the hardest part. Would it be possible to > control the induction heater using signals coming from and to LinuxCNC?. > The basic thing that I need is a Square wave generator, that outputs 2 > signals one at 180º from the other

Re: [Emc-users] Missing velocity of motion in axis's DRO

2013-02-07 Thread Chris Morley
> From: ghesk...@wdtv.com > To: emc-users@lists.sourceforge.net > Date: Thu, 7 Feb 2013 08:14:54 -0500 > Subject: [Emc-users] Missing velocity of motion in axis's DRO > > Greetings; > > Tuning up this lathe with its new z screw, one of the things I miss in this > new uber-busy DRO display tha

Re: [Emc-users] EPP data transfers

2013-02-07 Thread Jon Elson
Klemen Dovrtel wrote: > > I will continue here... I tested the epp parallel port mode and i can read > and write data. Now i also tried to write the address but nothing happens, > The strobe signal doesn't change its state. > > I also tried to set the wait signal to 0 and monitor the data_strobe

Re: [Emc-users] EPP data transfers

2013-02-07 Thread Marius Liebenberg
Some ports require external pullups. Is your port connected a pcb? If so try and solder a pullup on that line if you dont have one. On 2013/02/07 04:00 PM, Klemen Dovrtel wrote: > I used oscilloscope. I am using the base thread period to execute > data/address read/write periodically and I can e

Re: [Emc-users] MDI command

2013-02-07 Thread Sebastian Kuzminsky
(Replied on list, let's keep this debugging effort public.) On 2/7/13 08:42 , Tomaz T. wrote: > > > Hmm, my machine has a similar setup: a couple of pyvcp buttons that > > trigger halui mdi commands to move the machine to specific locations. > > It works fine for me, as soon as the mdi motion f

Re: [Emc-users] MDI command

2013-02-07 Thread Sebastian Kuzminsky
On 02/07/2013 05:11 AM, Tomaz T. wrote: > I have added just two simple buttons (pyVCP), one for "go to home" and other > "go to machine home" but after executing one or another, when machine reaches > its position, it switches Manual control[F3] to Joint mode, so it is not > possible straight aw

Re: [Emc-users] MDI command

2013-02-07 Thread Tomaz T .
I mistyped, actually I am using G53 to move on machines home position. > From: viesturs.la...@gmail.com > Date: Thu, 7 Feb 2013 14:32:49 +0200 > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] MDI command > > 2013/2/7 Tomaz T. : > > > > I have added just two simple buttons (pyVCP

Re: [Emc-users] EPP data transfers

2013-02-07 Thread andy pugh
On 6 February 2013 20:00, Klemen Dovrtel wrote: > Any idea what could be wrong? Does anybody have a simple code (executable) > that send the data using address_write/address_read so that i can test my > hardware? Running either the Pico PPMC or Mesa 7i43 drivers from the command line ought to

Re: [Emc-users] EPP data transfers

2013-02-07 Thread Klemen Dovrtel
I used oscilloscope. I am using the base thread period to execute data/address read/write periodically and I can easily measure/detect the data_strobe signal (pin 14) during data read/write. But if measure the address strobe signal (pin 17), nothing happens. F

Re: [Emc-users] EPP data transfers

2013-02-07 Thread Marius Liebenberg
How do you measure the strobe signal? You do realize that it is very quick and only happens during data transfer. I.E. Once on every read and very write. On 2013/02/06 08:00 PM, Klemen Dovrtel wrote: > Hello everybody, > > I will continue here... I tested the epp parallel port mode and i can rea

[Emc-users] Missing velocity of motion in axis's DRO

2013-02-07 Thread Gene Heskett
Greetings; Tuning up this lathe with its new z screw, one of the things I miss in this new uber-busy DRO display that is sharing the backplot window almost to the point of distraction, is the combined velocity display it used to have. Reading the wiki, I see a mention of .axisrc, but it doesn't

Re: [Emc-users] MDI command

2013-02-07 Thread Viesturs Lācis
2013/2/7 Tomaz T. : > > I have added just two simple buttons (pyVCP), one for "go to home" and other > "go to machine home" but after executing one or another, when machine reaches > its position, it switches Manual control[F3] to Joint mode, so it is not > possible straight away to jog with arr

[Emc-users] MDI command

2013-02-07 Thread Tomaz T .
I have added just two simple buttons (pyVCP), one for "go to home" and other "go to machine home" but after executing one or another, when machine reaches its position, it switches Manual control[F3] to Joint mode, so it is not possible straight away to jog with arrow keys on keyboard... I wou