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@Konrad,

Thank you!

Besides that can I ask if the points raised by hmnijp ... are addressed?
A few are adressed now.

The algo is still using local smoothing. as shown on page 3.
But now it uses a 3d-clothoid instead of a spline, and uses the correct path deviation to fit the clothoid.

I guess to really have jerk limiting you not only need to be smooth in the time domain but also in the path, thus the use of clothoid(?)
1. The 3d clothoid fit's the trajectory with G3 continuity, as explained in the abstract.
2. Then we have scurve motion profile, wich is used for jerk limiting.
3. Then the trajectory can use different algo's for path optimalisation, like flattening out a zigzag motion. This will also contribute to jerk.

The ringbuffer is working. And to my surprise i did'nt need a seperate thread so far to fit clothoids.

 

Good morning.
I had a working system using a old linuxcnc version (+- 5 years old). It was running fine, but the motherboard needs to be replaced.
I was unable to boot the same SSD on the new motherboard, so I suppose that from what I have read that the issue is more likely because the current installation was done on the old MBR.
The new candidate motherboard only has UEFI so for what I have read, I must convert the current disk to use GPT.

I have read some online information, and there are many steps involved on the conversion. Should I try to start from a new installation or still the conversion would be less trouble. What is your opinion?

Thanks for your reply, andypugh.

Unfortunately, the counter and position values ​​of the EL5101 being used seem to be reset the moment index-enable is turned OFF. The position where it stopped at the end of homing is the correct position. The coordinates of LinuxCNC are 0, and the POS position of the EL5101 is the same as the HOME_OFFSET value. It seems that it is not possible to avoid the excessive PID deviation when index-enable is turned OFF. This phenomenon does not occur when homing is performed again.

Until now, I have tried converting the Count value instead of the EL5101 POS and using it for Feedback, but it did not work.

It worked fine with the EM7004, but I'm starting to think that an external torque mode amplifier cannot be used with the Ethercat driver.

Thank you.

Hi

thanks for your response. The input pin if the 5A BOB has to be inverted. It is giving an error that pin cannot be inverted. Please help.

 

The wiring will work for 3-4Axis mill and for Lathe.
For Lathe you need to set 'LinuxCNC->Machinetype' to lathe
and maybe remove 2 stepdir plugins.

If you need a Spindle-Encoder, you can add it freely to the other free ports.

It worked here. Running 40 times.

Pullups and pulldowns are possible on both but only after configuration

Xilinx chips have the added option of pullups before being configured
 

Hello, 
i would like to run delta vfd-b over rs485 modbus and integrate with qtdragon hd GUI, can somebody please point me in the right direction i am completely new to linuxcnc, 

thanks 

Glad you got a handle on it!

I have an external momentary button and i want to toggle between halui.flood.on and halui.flood.off
How can do this config ?

Also i have an output pin that activates lubrication pump and an output pin that activates a solenoid hydraulic valve that releases spindle tool clamp
where in hal must connect it in iocontrol v2 ?

7i80hdt that is not xilinx fpga has the pullup only limitation
or can configured both pullup and pulldown with weak internal resistors ?

Thank you! Yes, everything worked out! Your instructions were easier. I'm trying to design)))

In the ini file, this:
[TRAJ]
COORDINATES = XYZ
Should be
[TRAJ]
COORDINATES = XXYZ

My old system that my machine works on is axis 2.8.0 running on linux mint 19.3 xfce with linux 4.19.106-rt46-lcnc.
My new system LMDE 6 Faye,up X1,joint 0, X2 Joint 1, Y Joint 2, Z joint 3. I will try to attach my ini, file and my Hal. If anyone could help me, I sure would appreciate it. Thank you. Travis

Funny thing is, the Mesa 7c81 and a stacked RPi look like a more compact solution.

NVME would be nice, the RPi5 with a NVME drive is blazingly fast.


Did you stick with the Mesa fpga pin to 7c81 layout ? Or did you change it to make routing easier ?

If you change things around, especially the clock signal, the SPI_CLK for comms is a little tricky to work out to begin with.

Sorry don't mean to add feature creep, man I wish I could design a simple board for the KSZ8851 Ethernet chip for my mesa clone thingy. So hats off to you Old Chap.