Re: [Emc-users] I've got a few questions on servos

>I want to cnc something. >I have a lot of questions but I'll stop there. >I know a bit about a lot of things and know I don't know enough about much. > >Wes I think you expressed what I and probably many (or most) of us are thinking - keep to this list and you are going to be better informed! P

Re: [Emc-users] Table Skew correction

On Sun, 01 Feb 2009 00:54:08 +0100, BRIAN GLACKIN wrote: > The description for doing the compile on the page is nice. It would be > usefull to have a link to the EMC-dev install wiki page - searching for > that > now. > you open terminal and type: sudo apt-get install emc2-dev and you have

Re: [Emc-users] Table Skew correction

Thanks Michael, I also did the sudo apt-get build-essentials as per Jeff Epler from IRC. In addition, someone on IRC (cannot recall who it was atm) noted how to change the HAL files. I added those notes to the wiki page for future reference. I am going to try to both correct the skew and try ou

[Emc-users] Resuming gcode on plasma execution after estop

HI, I am using EMC2 (with thc), on plasma table. After estop has been hit, resuming from the last place is not possible, the program must start from its beginning. I wondering if there is any option to continue from the last place Thanks, Sasa Vilic --

Re: [Emc-users] Resuming gcode on plasma execution after estop

This is assuming your using 2.2.8 and the AXIS interface. If so you use "set next line" from the machine menu. However you will need to take care of the torch start by adding that part into your file somehow. I have a plasma that is controlled by EMC. I usually scrap the part if I hit the e-st

Re: [Emc-users] Table Skew correction

I reinstalled 8.04 (fixing a video issue with my 815 intel video) and then reinstalled EMC2-DEV. Added build-essential, finally compiling millkins.c. I got the following warnings on compiling - anything to be worried about? bglac...@gantry:~$ sudo comp --install ~/Desktop/millkins.c make -C /usr

Re: [Emc-users] 10kHz Enable Signal?

To get a 10kHz square wave, you need to have BASE_PERIOD 5 or lower. Then simply set up a pwmgen. Here's a starting point for you. it may require tweaking. # Create one PWM generator. place this line early in your hal file. loadrt pwmgen output_type=0 # Do the computations for t

Re: [Emc-users] Table Skew correction

These are only warning, compiling finished succesfully. You can go on and test it regards Michael On Sun, 01 Feb 2009 18:03:06 +0100, BRIAN GLACKIN wrote: > I reinstalled 8.04 (fixing a video issue with my 815 intel video) and > then > reinstalled EMC2-DEV. Added build-essential, finally

Re: [Emc-users] 10kHz Enable Signal?

Hi Jeff > To get a 10kHz square wave, you need to have BASE_PERIOD 5 or > lower. Then simply set up a pwmgen. I guessed I need some PWM stuff, but it´s not that simple to get started with the HAL syntax. > Here's a starting point for you. Thank you very much. cu Flo

Re: [Emc-users] 10kHz Enable Signal?

Would the charge pump be easier and more practical to implement? I know my charge pump card wasn't picky about the actual frequency of the signal, anything at or above the 10Khz is sufficient. I don't know from a workload standpoint if one method over another (Charge pump vs PWM) is less CPU over

Re: [Emc-users] Hostmot2 and Homing

>I suggest you read the fine manual. It's really quite good; among many >other things it tells you what you need to know to get homing working. >If you're running emc2 2.2, see section 6.3 of the EMC2 Integrator's >Manual here: >

Re: [Emc-users] I've got a few questions on servos

On 31 Jan 2009 at 23:29, Leslie Newell wrote: > The disadvantage of the Gecko drives is that you don't get true > feedback from the motors. While the drives are enabled, they will > track the motors but if you hit estop or power down the drives they > will forget where they are. In my opinion this

Re: [Emc-users] I've got a few questions on servos

On 31 Jan 2009 at 23:29, Leslie Newell wrote: > The disadvantage of the Gecko drives is that you don't get true > feedback from the motors. While the drives are enabled, they will > track the motors but if you hit estop or power down the drives they > will forget where they are. In my opinion this

Re: [Emc-users] Hostmot2 and Homing

> > >> I suggest you read the fine manual. It's really quite good; among many >> other things it tells you what you need to know to get homing working. > > >> If you're running emc2 2.2, see section 6.3 of the EMC2 Integrator's >> Manual here: > >>

[Emc-users] multi-pass threading 5i20 problem "lathe"

Hi I've been trying to configure my lathe for threading and I think I'm missing something. I have the 5i20+7i33 mesa card + servos + 100 lines encoder attached to the spindle The threading are incorrect, so I've been looking to what can be wrong, and I find that the "motion.spindle-revs" not c

Re: [Emc-users] multi-pass threading 5i20 problem "lathe"

If the encoder position in hal generally tracks the correct position but gets worse over multiple revolutions, I would look to problems outside the PC. For instance, if the problem is not present when you turn the spindle by hand, then it could be noise from the spindle motor coupled into the enco

Re: [Emc-users] multi-pass threading 5i20 problem "lathe"

On Mon, Feb 02, 2009 at 02:02:51AM +0100, Arnold Riter CNC wrote: > > The threading are incorrect, so I've been looking to what can be wrong, > and I find that the "motion.spindle-revs" not correspond with the reality. > When there is only 1 to 5 revolution the value is almost correct, but > whe