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  • Aciera
  • Aciera's Avatar
Yesterday 17:29

How many uncoordinated axis can linuxcnc drive?

Category: General LinuxCNC Questions

You will need a custom mcode that calls an executable script that uses 'halcmd' to set the appropriate hal pins.

Here is an example that does this but for different hal pins so you will need to modify to meet your needs:
forum.linuxcnc.org/21-axis/53531-change-the-axis-limit#307778
  • Hakan
  • Hakan
Yesterday 16:53
Replied by Hakan on topic Weird rotary axis movement

Weird rotary axis movement

Category: General LinuxCNC Questions

Yeah I didn't remember that right. Then I wonder if that's the problem here.
  • meister
  • meister
Yesterday 13:48
Replied by meister on topic Xilinx Zynq 7010 fpga crypto windfall boards

Xilinx Zynq 7010 fpga crypto windfall boards

Category: Driver Boards

but rio is much more than the bitfile generation, it creates the interfaces and linuxcnc configuration.

it would be nice to have a visual editor in rio-setup like the vivado block designer
  • Todd Zuercher
  • Todd Zuercher's Avatar
Yesterday 13:30
Replied by Todd Zuercher on topic Weird rotary axis movement

Weird rotary axis movement

Category: General LinuxCNC Questions

It isn't that Linuxcnc doesn't do sychronized motion with rotoary axis. Rotary axis are sychronized just fine with linear. The problem is the incompatability of linear feed rate units with rotary feed rate units. The result is often (especially with inches) unexpectedly slow movements when a rotary move is mixed with a linear one. The problem is actually a G-code limitation, rather than a Linuxcnc one. For example you are milling along at F20 inches/min then you throw in a 40 degree move with the rotary. The rotary move is going to take 2 minutes to comple because of the F20, if the same line also includes a 1 inch move, the linear move will be limited to 0.5ipm so that it takes the same 2 minutes to complete. This is where the invers time mode comes to the rescue. it has no unit of measure involved just time. So if you want your 40deg 1inch combined move to move so that the linear component still moves at 20ipm you would specify F code on the line as 1/t or in this case 1/0.05min. or F20.0
  • PCW
  • PCW's Avatar
Yesterday 13:15 - Yesterday 20:56
Replied by PCW on topic 5 axis milling machine with 7i96s

5 axis milling machine with 7i96s

Category: Driver Boards

You can add a daughter card to the 7I96S parallel expansion port.

You could  use a Mesa daughterboard (a 7I85S  or 7I78 would  add 4 step/dir axis).
You could also use an inexpensive parallel port breakout, like the common Sainsmart 
5 Axis breakout, either ST-V2 or ST-V3 or one of the many  similar parallel port
breakouts. 
  • meister
  • meister
Yesterday 12:57
  • meister
  • meister
Yesterday 12:56
Replied by meister on topic Xilinx Zynq 7010 fpga crypto windfall boards

Xilinx Zynq 7010 fpga crypto windfall boards

Category: Driver Boards

blocks.tcl

[code]set projectname "rio-rtl"
set part xc7z010clg400-1
set outputdir "./$projectname"

file mkdir $outputdir
create_project -part $part $projectname $outputdir

create_bd_design "blocks"

add_files -norecurse pwmout.v
set module_pwmout [create_bd_cell -type module -reference pwmout pwmout_0]

add_files -norecurse tm1638b8s7l8.v
set module_tm1638b8s7l8 [create_bd_cell -type module -reference tm1638b8s7l8 tm1638b8s7l8_0]



regenerate_bd_layout
save_bd_design
set bdpath [file dirname [get_files [get_property FILE_NAME [current_bd_design]]]]



easier than expected :)

  [attachment=70865]blocks.png[/attachment]
[/code]
  • PCW
  • PCW's Avatar
Yesterday 12:47
Replied by PCW on topic Esab Ultrarex UXD-P2000 Upgrade Project

Esab Ultrarex UXD-P2000 Upgrade Project

Category: Plasma & Laser

If U33 is bad, that's a sign that there a problem with the 5V supply
(possible transient overvoltage) I doubt that the 24V supply is an issue.
  • meister
  • meister
Yesterday 12:41
Replied by meister on topic Xilinx Zynq 7010 fpga crypto windfall boards

Xilinx Zynq 7010 fpga crypto windfall boards

Category: Driver Boards

this waveshare thing working fine with vivado:
www.amazon.de/dp/B00KM70UFG?ref=ppx_yo2ov_dt_b_fed_asin_title

if you only need to load the bitfile, you can use the installed linux-system.

i know that someone in this forum has running linuxcnc on an raspberry-zero 2 with sdl gui,
this is not so fare away from this cores.

## I actually like vivado. wouldn't it be nice to have cnc modules (step gens, counters, pwm etc) set as ip blocks in vivado so it can be just visual drug and drop to create configuration you need. File Attachment:

hmmm, maybe we can convert some rio plugins into vivado blocks
at the moment the complete rio part is shown as one block in vivado.
  • Esaber
  • Esaber
Yesterday 11:44
Replied by Esaber on topic Esab Ultrarex UXD-P2000 Upgrade Project

Esab Ultrarex UXD-P2000 Upgrade Project

Category: Plasma & Laser

Ok. Will try that. Thanks
Would powering the mesa board from an external source for both 5v and 24v and isolating it from the esab power supply a good option to prevent this type of issues?
  • DMNZ
  • DMNZ
Yesterday 11:43

Xilinx Zynq 7010 fpga crypto windfall boards

Category: Driver Boards

wow, you made so much progress compared to me! i only managed to boot it and connect to it using ethernet to check that its working. it came with crypto software installed which has web server and dhcp configured so i managed to connect to it via browser using ip address.  
now i am waiting for proper jtag that recognized by vivado to start playing with it. 
i too thought about potentially running linuxcnc on zynq but i suspect those cores are just too slow at 600mhz.
I actually like vivado. wouldn't it be nice to have cnc modules (step gens, counters, pwm etc) set as ip blocks in vivado so it can be just visual drug and drop to create configuration you need. 
 
  • vformi
  • vformi
Yesterday 08:17
Replied by vformi on topic Retrofit - LinuxCNC + EtherCAT

Retrofit - LinuxCNC + EtherCAT

Category: EtherCAT

There is no existing VFD. The spindle motor is a large, old 3-phase induction motor, and it’s currently started using a classic star/delta starter.

The actual spindle speed is controlled by changing gears in the mechanical gearbox. There’s no electronic control involved right now.

I plan to keep the gearbox, but replace the starter with a modern VFD. That way, I can at least get rough electronic speed control, without trying to replace the entire spindle drive system on such an old machine.
  • jimmyrig
  • jimmyrig
Yesterday 07:24

How many uncoordinated axis can linuxcnc drive?

Category: General LinuxCNC Questions

I tried setting up extra joints but am struggling to run them in gcode with custom M codes. Does anyone know the best way to do this? Just need to home and move into position.
  • Gautham
  • Gautham
Yesterday 07:08
Replied by Gautham on topic 5 axis milling machine with 7i96s

5 axis milling machine with 7i96s

Category: Driver Boards

I wanted to add that my machine also has a parallel port available, if that would help
  • Gautham
  • Gautham
Yesterday 06:00
5 axis milling machine with 7i96s was created by Gautham

5 axis milling machine with 7i96s

Category: Driver Boards

Hi Everyone, 

I am new here and new to CNC, Linux and Mesa boards, so pls excuse the novice questions.

This is my setup
I have a 5-axis milling machine, which uses 2 stepper motors for the z axis, so in total there are 6 stepper motors. I have also bought a servo motor ECMA-C21020RS from Delta to power my spindle. I have a Mesa 7i96s card

Now for my question
Have I bought the wrong Mesa card for my requirement? From my understanding, the 7i96s can only control 5 motors so my 6 steppers and servo exceed the capacity. If so, what would be the best solution? To buy another card and scrap the 7i96 or is there an option to buy an add-on card to work with the 7i96s?

Thank you in advance for your help
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