Re: [Emc-users] Help with some sporadic followin errors

Well. I finally got rid of all the following errors. Thank you! Here's the first video of the lathe cutting a lobe. https://www.youtube.com/watch?v=KzEPyKZ6Xjo&feature=youtu.be This is the first test so I'm sure I can get more speed from the X axis and spindle next time I test. Also, I'm taking

[Emc-users] 6i24 + 7i44 + 7i52s + 7i33 is it possible?

Hello guys, This will be probably for Peter but may be some of you have a similar configuration. I'm having a little bit of trouble trying to drive my spindle VFD with a step generator. I have an unused slot on the 6i24 and I have a 7i33 that I'm not using. Could it be possible to write a firmwar

Re: [Emc-users] 6i24 + 7i44 + 7i52s + 7i33 is it possible?

By the way, this is the firmware I'm using now that Peter genly made for me. I needed it with a special arrangement for the 7i44 because of the way I'm mounting the boards. http://freeby.mesanet.com/5i24_25r.zip El mar., 28 abr. 2020 a las 20:13, Leonardo Marsaglia (< ldmarsag...@gmail.com>) escr

[Emc-users] A simple LinuxCNC system

I've been studying the source code for the basic LinuxCNC system. One that doesn't require external intelligent hardware to augment a 4 core 2 GHz 64 bit processor. In other words the parallel port based system. Perhaps someone with more experience with the system can answer a few questions?

Re: [Emc-users] A simple LinuxCNC system

> > *For a stepping motor driver with 10uStep per step that's still pretty > well faster than it can actually turn. * No, you missed the point. With 10 uS per cycle, the motor can step in steps that are a multiple of 10uS long. So it can be 6000 uS or 6010 uS but never 6011 uS per step. It i

Re: [Emc-users] A simple LinuxCNC system

> From: Chris Albertson [mailto:albertson.ch...@gmail.com] > Sent: April-28-20 6:13 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] A simple LinuxCNC system > > > > > *For a stepping motor driver with 10uStep per step that's still pretty > > well faster than it can actually t

Re: [Emc-users] A simple LinuxCNC system

> On 29 Apr 2020, at 11:29 am, John Dammeyer wrote: > > As far as LinuxCNC goes, to me it appears the parallel port code given the > steplen calculations there isn't a way to bring the step pulse low again > during the same BASE_PERIOD interval which in the HAL file example is 24uS > not 10

[Emc-users] Interesting ARM SOC for Machine Control

https://tibbo.com/store/plus1/specifications.html https://tibbo.com/programmable/showcase.html https://www.sunplus.com/products/SP7021.asp http://wiki.banana-pi.org/Banana_Pi_BPI-F2S http://wiki.banana-pi.org/Banana_Pi_BPI-F2S#FPGA_kit_documents Debian Buster image https://drive.google.com/f

Re: [Emc-users] A simple LinuxCNC system

> > > > As far as LinuxCNC goes, to me it appears the parallel port code given the > > steplen calculations there isn't a way to bring the step > pulse low again during the same BASE_PERIOD interval which in the HAL file > example is 24uS not 10uS. Therefore I interpret the > step pulses to be

Re: [Emc-users] A simple LinuxCNC system

> From: Phill C [mailto:phillcarte...@gmail.com] > > > On 29 Apr 2020, at 11:29 am, John Dammeyer wrote: > > > > As far as LinuxCNC goes, to me it appears the parallel port code given the > > steplen calculations there isn't a way to bring the step > pulse low again during the same BASE_PERIO

Re: [Emc-users] A simple LinuxCNC system

On Tue, 28 Apr 2020, John Dammeyer wrote: Date: Tue, 28 Apr 2020 19:09:00 -0700 From: John Dammeyer Reply-To: "Enhanced Machine Controller (EMC)" To: "'Enhanced Machine Controller (EMC)'" Subject: Re: [Emc-users] A simple LinuxCNC system As far as LinuxCNC goes, to me it appears the

Re: [Emc-users] A simple LinuxCNC system

> -Original Message- > From: Peter C. Wallace [mailto:p...@mesanet.com] > >> double step on this page may do that > >> >> > > > > > Nope. From the doc. "What is the maxi

Re: [Emc-users] A simple LinuxCNC system

> On 29 Apr 2020, at 12:34 pm, John Dammeyer wrote: > > > >> -Original Message- >> From: Peter C. Wallace [mailto:p...@mesanet.com] double step on this page may do that

Re: [Emc-users] Non-circular boring. Linuxcnc style.

just to see if it would... https://youtu.be/a7CO9gohaXE On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik wrote: > the new encoder seems to work good :) > > > > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson wrote: > >> On 04/21/2020 09:11 PM, Sam Sokolik wrote: >> > Just the way the path was generated

Re: [Emc-users] A simple LinuxCNC system

> > I couldn't find that reset mode in the hal_parport. At least not how you > > could have a step that lasted 5uS when the base period > was 35uS. How's that timing calculated? > > setp parport.0.reset-time 5000 > In the doc I linked earlier Ends up being reset_time in the reset_port() func

Re: [Emc-users] Non-circular boring. Linuxcnc style.

> -Original Message- > From: Sam Sokolik [mailto:samco...@gmail.com] > Sent: April-28-20 7:56 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style. > > just to see if it would... > > https://youtu.be/a7CO9gohaXE > I think what you are

Re: [Emc-users] A simple LinuxCNC system

On Tuesday 28 April 2020 21:29:39 John Dammeyer wrote: > > From: Chris Albertson [mailto:albertson.ch...@gmail.com] > > Sent: April-28-20 6:13 PM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] A simple LinuxCNC system > > > > > *For a stepping motor driver with 10uStep per

Re: [Emc-users] A simple LinuxCNC system

On Tue, Apr 28, 2020 at 6:32 PM John Dammeyer wrote: > > Will you share some code on how you accelerate from 0 to 15kHz stepping > rate on your $1 processor? > No code. that is the entire point. The microcontroller has built-in hardware the bigger PC or Raspberry Pi lacks. The way it works is

Re: [Emc-users] A simple LinuxCNC system

> > > If using the parport in EPP mode, you can set a reset time separately, so > you can step at the base thread rate. As far as motor speed is > concerned, the speed limit is generally the speed limit of the opto > stuff in the driver, and I've run steppeers laying on the table at > slightly bett

Re: [Emc-users] A simple LinuxCNC system

> -Original Message- > From: Chris Albertson [mailto:albertson.ch...@gmail.com] > Sent: April-28-20 9:30 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] A simple LinuxCNC system > > On Tue, Apr 28, 2020 at 6:32 PM John Dammeyer > wrote: > > > > > Will you share s