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  • Abdulkareem
  • Abdulkareem
09 Sep 2024 09:57
Custom DH Parameters Kinematics was created by Abdulkareem

Custom DH Parameters Kinematics

Category: Advanced Configuration

hello guys,
i am want to implement 5 axis milling cnc machine kinematics with my own DH parameters, i have XYZAB joints , 3 linear and 2 rotational, is genserkins suitable for my machine config or is there is another kinematics model for this kind of config.
 
  • meister
  • meister
09 Sep 2024 09:54
Replied by meister on topic Building a chain driven Plasma table.

Building a chain driven Plasma table.

Category: General LinuxCNC Questions

Is there any free software to generate G code for plasma?

You can try this:
github.com/multigcs/viaconstructor

never tested with plasma , but if you tell me if there is something missing, i will add it.
 
  • Creative25
  • Creative25
09 Sep 2024 08:56 - 09 Sep 2024 09:25
Replied by Creative25 on topic Building a chain driven Plasma table.

Building a chain driven Plasma table.

Category: General LinuxCNC Questions

Thanks I Watched the video but it looks Ilike it doesn’t create the correct size.

Length I put on Inkscape is 300 mm
Length on simulation of geode is 346mm

Is there something I did wrong?
  • Abdulkareem
  • Abdulkareem
09 Sep 2024 08:53
Replied by Abdulkareem on topic Using a HAL pin in DH parameters

Using a HAL pin in DH parameters

Category: HAL

   
i have added it to the postgui hal file, i just have to give it a name, thank you it works fine 
  • rodw
  • rodw's Avatar
09 Sep 2024 08:17

What do you really get for a $350 desk top engraver ?

Category: Show Your Stuff

It is possible to build a belt driven reduction that mounts in place of a NEMA23 motor. I did it here (but using a pinion.)
forum.linuxcnc.org/30-cnc-machines/31509...inion-drive?start=20
  • iMaks-RS
  • iMaks-RS
09 Sep 2024 07:54
probe_basic_lathe vtk_backplot.py error was created by iMaks-RS

probe_basic_lathe vtk_backplot.py error

Category: QtPyVCP

error if open any .ngc turn file.
how to disable or change backplot to "standart" - as axis interface?
mill probe_basic - ok.
  • meister
  • meister
09 Sep 2024 07:41
Replied by meister on topic Using a HAL pin in DH parameters

Using a HAL pin in DH parameters

Category: HAL

how do you create the 'x-rot-point' widget ?
can you see the pin in halshow ?
have this widget an ...-f output ?
  • vre
  • vre
09 Sep 2024 07:22
Replied by vre on topic New update on STMBL

New update on STMBL

Category: Driver Boards

What igbt module for 600vdc?
For 600vdc there are plenty cheap rectifiers..
400vac is 564vdc rectified.
  • machinedude
  • machinedude's Avatar
09 Sep 2024 07:12

What do you really get for a $350 desk top engraver ?

Category: Show Your Stuff

the biggest problem is the machine is built already and space is limited. if i could do any kind of reduction it would probably have to hang out to the side but if i could come up with a way now i know i can put whatever size on the open loop side and increase the circumference to get more engagement. i think the belt is compressing under load with a tiny 24 tooth pulley. so if it is doing it on the open loop belt side a bigger set on the other side would be a good idea too i think if it's even possible my fear is i painted myself into a corner :)

i will have to dig some more and look at the stuff you suggested in more depth thanks for the feedback :)

straight cuts work just fine but cutting a contour is where things get weird shows up looking like chatter when trying to finish. it is so close to being there but needs a little help to get that little extra bit of stiffness needed :)
  • Abdulkareem
  • Abdulkareem
09 Sep 2024 07:07
Replied by Abdulkareem on topic Using a HAL pin in DH parameters

Using a HAL pin in DH parameters

Category: HAL

tried that, but still getting the same error
  • seyad
  • seyad
09 Sep 2024 06:45

Notes from installation of ethercat on Raspberry Pi 4

Category: EtherCAT

are you using this image ? www.linuxcnc.org/iso/rpi-4-debian-bookwo...23-11-17-1731.img.xz . are you using this(www.raspberrypi.com/software/) application for preparing your sd-card..? RAM size of your rpi above 4GB means good.
  • Aciera
  • Aciera's Avatar
09 Sep 2024 06:07
Replied by Aciera on topic Probe Basic subroutine parameter - #5210?

Probe Basic subroutine parameter - #5210?

Category: QtPyVCP

Also note that this seems to be used in the GUI:

./src/probe_basic/probe_basic.ui:7592: <string>M61 Q0 G49 #5210 = 0 #3991 = 0</string>
./src/probe_basic/probe_basic.ui:9605: <string>M61 Q0 G49 #5210 = 0 #3991 = 0</string>

  • Aciera
  • Aciera's Avatar
09 Sep 2024 05:56
Replied by Aciera on topic Probe Basic subroutine parameter - #5210?

Probe Basic subroutine parameter - #5210?

Category: QtPyVCP

I'm not familiar with PB but this does seem a problematic way of doing things.
One problem with writing #5210 directly like that is that the python status channel gets out of sync with the actual state because this does not set the values of the 'g92_offset' attribute (which is supposed to reflect the currently active g92/g52 offset values) to zero.
While this may not a problem for the GUI it might well upset a custom python component.
  • Cant do this anymore bye all
  • Cant do this anymore bye all's Avatar
09 Sep 2024 05:15
Replied by Cant do this anymore bye all on topic Linuxcnc start disables Parallel port of PCI Express card

Linuxcnc start disables Parallel port of PCI Express card

Category: Basic Configuration

Might be worth looking at dmesg just after starting linuxcnc
So linuxcnc aborts running the config ?

Does linuxcnc report anything ?
  • Aciera
  • Aciera's Avatar
09 Sep 2024 04:54
Replied by Aciera on topic Convert LinuxCNC Sim to Real Machine

Convert LinuxCNC Sim to Real Machine

Category: General LinuxCNC Questions

trivkins should handle 6 axis no problem:

KINEMATICS = trivkins
JOINTS = 6
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