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Hi Daniel,
Shame this forum has no DM function. I think you need to be logged into YT to see the email address on the main page. Otherwise I have the same user name on Zerspannungbude, which has a DM function.

I put all I learnt about the gearbox here. 
github.com/jin-eld/mh400e-linuxcnc/wiki
This Github has the Comp my mate wrote to control it.

Yes, the comp rounds the commanded speed to the nearest lower gearbox ratio. It reacts automatic to the "S" code in gcode. Of course, speed change is inhibited with the spindle turning.

I added a G4 P5 pause to my post processor at every speed change, as it can take that long for the gearbox to finish changing ratio.
Cheers,
Mark

Hello. Who has worked with ETH raw socket on Linux cnc? I'm writing an application running on raw socket, after compiling I run - sudo setcap cap_net_raw+ep NAME.so - Since raw socket requires root, I need to run setcap. Does this break Linux cnc?

Hi,

I'm happy to help if I can. I'm ot familiar with the STM32 controllers and I don't really understand the ldscript files, but from what I understand you'll need a ldscript and some adjustment in the platformio.ini file. Can you share your platformio.ini file?

The area im stuck on is the latching of 19k1 relay. I cannot keep the relay latched because the axis keeps running away. I’ve tried swapping the wires and changing the signs for output scale and encoder scale multiple times different combinations and still run away just in opposite directions when I swap the E1 and e2 wires. So that leads me to say what I have done is not correct. When I try to latch 19k1 from f2 it drops constantly back to estopTo tackle it from a different angle I reduced the p value in the ini from 50 to 5 and manually latched 19k1 by pushing on the contactor with Linuxcnc started but without f2 pressed. The error indicator at the rear of the machine reset, and was happy with no errors but very very slow run away. Estop, door switch’s, tool clamp etc all work as before the retrofit and the axis limit switches all trip the estop. SoOn my machine when 19k1 is latched it fires the coil on 7k1

Good job! Works well at high speed. Little beast

this hm2_modbus.0.last-error-code ?
it looks like:
• 110, 0x6e (ETIMEDOUT): The command received no reply and timed out.

But I 'm not sure if this was some consequential error.
I compared the running wj200.comp example of my USB-Dongle
but i can´t see any difference. Do I need some delay somewhere .
I added some interval="1000" like you did in your gs10. but no success.

Here is 5I25/6I25 firmware for a 7I76U with the PKTUART

 

I can try to help more later, but note there is another user trying to get a Omron MX2
working with a Mesa card and having issues. I suspect I may have to acquire a MX2
to try and get this going.

The 7I76U manual has the RS-485 wiring information (and you must use RS-485 mode with the 7I76U
so you lose on estep/dir output)

Sounds like you have two separate errors.to clarify, when you try to start the machine contactors are closing? If so, which?
For the servos, can you post how you connected the indramat +/- 10V wires to 7i97T terminal block?

Hello,Im using LinuxCNC 2.9Can I please get some assistance with wiring of the mesa 7i76U to an omron mx2 VFD and the HAL and INI file and the correct firmware recommendation. files.omron.eu/downloads/latest/manual/e...rs_manual_en.pdf?v=1       

NWE wrote:

37 m/min! Wow! I was starting to worry these motors will look tiny on such a big printer maybe I should look at bigger motors haha.
I will plan on using these motors with 2:1 reduction and 60mm dia. drum. 3 axis plus I can use the 4th output from this Lichuan driver for the small extruder motor.

My Elegoo Neptune 3 Max has a max rated speed of 6.4 m/min and they recommend printing at 3.6 m/min. The guy running the fast little FLSUN printer will probably share with me what the slicer settings look like for such high speed printing. The FLSUN S1 does 72 m/min. but I'm not interested in trying to match that any time soon. That printer has even less build volume than my elegoo.

The extruder - I will probably start with the spare head I think I got for my other printer, but I read recently about a new printer model, can't recall what it was called. It used high frequency induction heat to heat the nozzle, allowing the heater in the print head to heat up and cool off in seconds because the mass of the heater was reduced to pretty much just the nozzle. I might try that later.

I hope I'm not hijacking your thread here, maybe I should start a separate thread in hardware or builds related category when I start building this 3d printer.

There  are some pretty cool 5 way print heads I've seen recently. www.aliexpress.com/item/1005007430584580.html

Not being able to access the bios seems quite a handicap. Lenovo says replace the motherboard. I found some possibilities otherwise:
www.ebay.com/itm/204768580473
and
www.reddit.com/r/thinkpad/comments/13wwp..._reset_for_t14_gen2/

Hope that helps.

NWE wrote:

I hope I'm not hijacking your thread here, maybe I should start a separate thread in hardware or builds related category when I start building this 3d printer.

This would be the right place for it:
forum.linuxcnc.org/additive-manufacturing

Probably...
But, do download and test from USB the 2.8.4 version of LinuxCNC in a live session, report back how that looks.
And from experience with many, many laptops, they either work or they do not, so tweaking might just improve things a bit, but going from 3 million to 25-50K is never going to happen.
Also, disable TPM or whatever Lenovo is calling the Trusted Platform and anything related to virtualisation.
Some ideas here:
forum.linuxcnc.org/18-computer/54369-use...mesa-ethernet-boards

With 2.7 i have used this pin. It needs multiply by 60 for feed per minute


motion.current-vel

current velocity in user units per second


example HAL:

setp   mult2.0.in0   60
net velcalc   mult2.0.in1   motion.current-vel
net cur-vel   mult2.0.out   pyvcp.feed



actual linuxcnc stable has pin

motion.feed-inches-per-minute

37 m/min! Wow! I was starting to worry these motors will look tiny on such a big printer maybe I should look at bigger motors haha.
I will plan on using these motors with 2:1 reduction and 60mm dia. drum. 3 axis plus I can use the 4th output from this Lichuan driver for the small extruder motor.

My Elegoo Neptune 3 Max has a max rated speed of 6.4 m/min and they recommend printing at 3.6 m/min. The guy running the fast little FLSUN printer will probably share with me what the slicer settings look like for such high speed printing. The FLSUN S1 does 72 m/min. but I'm not interested in trying to match that any time soon. That printer has even less build volume than my elegoo.

The extruder - I will probably start with the spare head I think I got for my other printer, but I read recently about a new printer model, can't recall what it was called. It used high frequency induction heat to heat the nozzle, allowing the heater in the print head to heat up and cool off in seconds because the mass of the heater was reduced to pretty much just the nozzle. I might try that later.

I hope I'm not hijacking your thread here, maybe I should start a separate thread in hardware or builds related category when I start building this 3d printer.