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How to set up the LinuxCNC PC
 
How to set up the LinuxCNC PC
  
* Download ISO from LinuxCNC Homepage, <pre>dd if=linuxcnc.iso of=/dev/stick</pre> on usb stick and install: [http://linuxcnc.org/docs/html/getting-started/getting-linuxcnc.html Download Page]
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* Download ISO from LinuxCNC Homepage, <tt>dd if=linuxcnc.iso of=/dev/stick</tt> on usb stick and install: [http://linuxcnc.org/docs/html/getting-started/getting-linuxcnc.html Download Page]
* After installation put network to static, use <pre>10.20.30.60/16</pre> as IP Address, look up current gateway and DNS server
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* After installation put network to static, use <tt>10.20.30.60/16</tt> as IP Address, look up current gateway and DNS server
* Clone the config: <pre>git clone https://github.com/Metalab/linuxcnc_config.git linuxcnc</pre>
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* Clone the config: <tt>git clone https://github.com/Metalab/linuxcnc_config.git linuxcnc</tt>
* Add lp group to cnc user: <pre>adduser cnc lp</pre>
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* Add lp group to cnc user: <tt>adduser cnc lp</tt>
* Tweak the Jitter, see [http://wiki.linuxcnc.org/cgi-bin/wiki.pl?The_Isolcpus_Boot_Parameter_And_GRUB2 isolcpus Boot parameter]: put <pre>GRUB_CMDLINE_LINUX_DEFAULT="noapic isolcpus=1 idle=poll nohlt quiet rootdelay=5"
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* Tweak the Jitter, see [http://wiki.linuxcnc.org/cgi-bin/wiki.pl?The_Isolcpus_Boot_Parameter_And_GRUB2 isolcpus Boot parameter]: put <tt>GRUB_CMDLINE_LINUX_DEFAULT="noapic isolcpus=1 idle=poll nohlt quiet rootdelay=5"
</pre> into <pre>/etc/default/grub</pre> config and <pre>update-grub</pre>
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</tt> into <tt>/etc/default/grub</tt> config and <tt>update-grub</tt>
 
* After a reboot, you should get really nice jitter values, see screenshot
 
* After a reboot, you should get really nice jitter values, see screenshot
  
 
[[Datei:Jitter.png]]
 
[[Datei:Jitter.png]]

Version vom 3. Januar 2017, 19:25 Uhr

How to set up the LinuxCNC PC

  • Download ISO from LinuxCNC Homepage, dd if=linuxcnc.iso of=/dev/stick on usb stick and install: Download Page
  • After installation put network to static, use 10.20.30.60/16 as IP Address, look up current gateway and DNS server
  • Clone the config: git clone https://github.com/Metalab/linuxcnc_config.git linuxcnc
  • Add lp group to cnc user: adduser cnc lp
  • Tweak the Jitter, see isolcpus Boot parameter: put GRUB_CMDLINE_LINUX_DEFAULT="noapic isolcpus=1 idle=poll nohlt quiet rootdelay=5"

into /etc/default/grub config and update-grub

  • After a reboot, you should get really nice jitter values, see screenshot

Jitter.png