Re: [Emc-users] Reading config values with a realtime HAL module.

On 30/06/17 23:05, Chris Albertson wrote: That is not "ugly" is the common why things are done in real-time systems. You try as hard as you can to push everything you can into user space. What you describe is actually "best practice". Look even at the normal Linux kernel. Typically an

Re: [Emc-users] Can't install from livecd (usb stick)

Thanks for the suggestions. I think you are both right, the system just won’t boot off USB. And in fact after thinking about it more I believe I built the original system off a DVD drive. That was back when bootable USB sticks were just getting started. I was thinking that installing onto a

Re: [Emc-users] Can't install from livecd (usb stick)

I didn't see a motherboard brand mentioned. Gigabyte are famous for having bios that will not boot off of usb. The issue is partition size: <4gb will work, as I recall. I was about to trash my gigabyte mobo until I found this online somewhere. On Sat, Jul 1, 2017 at 8:29 PM,

Re: [Emc-users] Backlash comp, does it follow sign of encoder (input) scale?

Screw error comp isn't really applicable, but you can do something similar in HAL. You want (if I understand correctly) a compensation value that applies a minor tweak to Z as X moves, right? You could use the lincurve HAL component to calculate the compensation amount and the offset component

Re: [Emc-users] Reading config values with a realtime HAL module.

On Fri, Jun 30, 2017, at 05:46 PM, Les Newell wrote: > Is it possible for a real time HAL module to read config values from > disk? I guess I could do it the ugly way and have two modules, one in > user space to read the disk and pass values to the mealtime module. > > My lathe is pretty worn

[Emc-users] z drive probs

Greetings guys; That <$200 2505 by 1475 screw I used for z drive is haunting me, again. First, I never did get around to shimming some preload into the thrust bearing, so a years messing around later, the far end of the screw is moving around .0055" as it takes up the reversal slack. And

Re: [Emc-users] z drive probs

On Saturday 01 July 2017 21:34:27 Gene Heskett wrote: > Greetings guys; > > That <$200 2505 by 1475 screw I used for z drive is haunting me, > again. > > First, I never did get around to shimming some preload into the thrust > bearing, so a years messing around later, the far end of the screw is

Re: [Emc-users] Can't install from livecd (usb stick)

Did you try disabling any CDROM drives listed in BIOS? Kurt Jacobson 505-303-1933 Sent from Mobile On Jul 1, 2017 4:17 PM, wrote: > Still fighting with this. I’ve never had so much problem installing > Linuxcnc. I have tried everything, different USB sticks, building on >

Re: [Emc-users] Can't install from livecd (usb stick)

I know that some older computers do not support booting from a USB. Have you been able to verify that it can? I am sorry I can't be of more help. I hope someone else chimes in who can help more. Good luck! Kurt Jacobson 505-303-1933 Sent from Mobile On Jul 1, 2017 4:50 PM,

Re: [Emc-users] Can't install from livecd (usb stick)

Thanks Kurt, I'm fairly certain that I originally built it using a USB stick (back in the day) with Ubuntu 10.04…. -Tom > On Jul 1, 2017, at 4:57 PM, Kurt Jacobson wrote: > > I know that some older computers do not support booting from a USB. Have > you been able to

Re: [Emc-users] Can't install from livecd (usb stick)

Still fighting with this. I’ve never had so much problem installing Linuxcnc. I have tried everything, different USB sticks, building on several different machines using the several different methods and nothing I do seems to help. I still get stuck in this loop of the install trying to use

Re: [Emc-users] Can't install from livecd (usb stick)

It could just be that the computer will not boot off the USB stick. Remove the disk drive, attach it to another computer and install Linux unto that drive then put the drive backing the PC. I've resorted to that trick a few times and got Linux installed on a machine with no CD. The other tick