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hi no you use a stlink (the green one on the video) to flash a second stlink adapter (the blue one on the video), 
then you take the key that you flashed (the blue one) you connect it to a pc and you use PYOCD with the command pyocd flash .\remora-rt1052-3.1.3.bin --target mimxrt1050_quadspi as in the photo


youtube.com/shorts/kLOyWslSZU0?si=C3GMQaH--oAvvTZk

 

I leave the spindle in high gear and usually just run the spindle at 1800 and use the dial to tweak the speed. I put an encoder on the spindle so I "can" but haven't used that to get spindle speed but I do use it for rigid tapping.

There's some photos of it here gnipsel.com/images/bp-knee-mill/

JT

Did you install the RTAI kernel and the corresponding RTAI version of LinuxCNC as explained on the Downloads page?
Did you disable hyperthreading in the BIOS?
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You can run the machine even if you get latency warnings, but do not do production parts, decorative stuff will mostly be OK, but that is very dependent on how bad the latency excursions are.
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A friendly advice:
I can not justify breaking a perfectly working machine for OneDrive even with a gun pressed to my head, hell i can not justify using OneDrive even if they payed me, but that is me.
Given the huge amount of options for transferring files:
- from setting up your own servers (not easy and please for goods sake do not use Docker and such stuff for it)
- use whatever you use on your phone, like WhatsApp or Signal or Telegram, not Viber or WeChat or Tango or .....
- use a normal e-mail , should have put this first, make e-mails for each machine and leave them logged in
- If you already have google e-mail, use google for everything
-
Telegram can be made to control the machine remotely, total control, just have a look at telegram boot for 3D printers.
All that without opening ports and security risks and ...

Thanks, JT, especially for turning me onto the GS2, which I guess is now the GS20 series. Do you leave the manual spindle speed control set at high speed/maximum rpm? I'm guessing the analog or frequency output from the VFD can be wired to the Mesa board to display spindle speed on LCNC?

Thank you very much for the informative reply.
Update:
I cannot get the latency below 40.000 (3 x glxgears, 3 x youtube video running), so if i set base_period 35000 in the ini file, then i get a unexpected delay on start up, but the machine works well now and does not loose steps.

I have again played arround with the Bios settings for at least 4-5 hours, but something came to mind: The VGA, which is a old Nvidia card. I tested with a other card, a old Geforce card, but about the same result. Unfortunately i dont have a Radeon card to test, but i just ordered a AMD Radeon HD 7450 1GB DDR3 card for about 10€. In 2 days i will be able to test it. If nothing changes to better, then i think i will buy the 7i92T. (thanks for the suggestions)

I will update in 2 days.
Thanks and best regards.

Hi,
thanks to all for the suggestions!
did several checks today

1. start vs end positon -> 1.3 mm positive error on both axis -> accumulated error on both axis
2. checked step pulse width = base period 
3. mechanical test -> turned motors by hand while keep high resistance on the Z-axis plate -> everything feels rock solid with no observable backlash
4. tuning servos -> I use the T3D servodrive von HLTNC, did  several tests with different filter and timing values -> unchanged
5. something very strange did happen also today... by accident I run a testprogramm with 12.000 mm/min -> the circle was perfectly straight :O

still to do -> check electrical connections as Peter mentioned.
 

I know this is an older thread, but I recently had success doing this.  I wanted to run the Windows-based configuration/tuning utilities for my EtherCAT servo drives without hauling a laptop to my shop.  I installed QEMU/KVM on my LinuxCNC development machine, installed Windows 10 in a virtual machine, and it works fine.  I'm able to redirect the USB-serial devices into the guest OS so the software is able to communicate with the drives.

I've tested this with the software for the LeadShine EL7 series (Motion Studio) as well as the software for the StepperOnline A6 servos.

I have not done extensive testing in terms of the impact on realtime performance, but if there is any effect I haven't noticed it.  LinuxCNC runs fine even while the guest OS is running, and there are no realtime warnings or unexpected behavior when operating the machine.  When this conversion is completed, it will be running on a less capable processor with less RAM, so I won't be doing this for "production" use, but it's great for development purposes.
 

i did not

I converted my BP knee mill from Anilam 1100M to EMC (now LinuxCNC) years ago using 5i25 and 7i77. I ditched everything except the drive boards and DC power supply for the drives IIRC. I put an Automation Direct GS2 drive for the spindle using the GS2 component.

JT

Just installed the latest RTAI deb set (5.4.290-rtai-amd64) (packaged with linuxcnc 2.9.4) from the usual place: onelaboratories.us/abc/ and i must say the latency is about half what 5.4.279 was on my pc. Also the GUI doesn't lag on boot like it did with 5.4.279.  Running a couple tests:

1: histogram with 4 glxgears, stress-ng & 2 yt the servo thread was 16.7us and 12.9us base thread.

2: histogram & unigine heaven the highest 23.8us base and 23.4us servo thread as seen in the histogram here.

Win! Win!

Die 5.0.1 ist weiter als die Develop, da ich an der V5 nicht weiter entwickel. Die V6 habe ich noch nicht auf Stand um daraus die neue Develop zu machen.

20 iterations vs 1000
Nice.

It would be better to have some protection of course, the same as with a Raspberry. The pin header can be used via the driver made by Guglielmi:
forum.linuxcnc.org/18-computer/48079-can...cnc?start=200#273554

For Rockpro64 (rk3399?), I built an image before for a Orange Pi 4, but that didn't seem to work well, spikes to 130us, could work with Mesa though. You can try to build one via Armbian, from 6.12 and up you don't really need to patch it, just the right configuration. Then experiment to isolate cpu1 and move the rt tasks to that core as explained in the following post:
forum.linuxcnc.org/18-computer/48079-can...cnc?start=280#286432

 Hi Arciera,

Here is a basic  powel example. It uses a equatation with 2 unknown's.
This example run's ok.
powel basic example

The residual  = distance ( guess position result from first calculation up to final end position. )

I just found out why to use the gaus method....
gaus calculates clothoid length

I found it by accident, when computing the endpoint of the clothoid compound in a optimized function.
it turn's out that the Gauss method is used to get very high accuracy in a few iterations.
My current approach has the property to drift off. As values are incremented including nummerical errors.

So now finally i know why gauss is used.

Gaus vs Drift:
 

I guess we could simply calculate the length of our 3D residual vector and pass that back as the error value to be minimized.
Yes. Excact. That's going to be tested.

Some pictures of your machine would help. tommylight and I have both built hot wire foam machines.
Personally I would use ladder logic for the pause control. I am confused however as
to why your wire breaks often enough that you need a system to pause the program when it happens.
Some questions.-
What type of wire are you using Titanium? NiChrome?
How much tension is the wire kept under?
What gauge is the wire?
How hot are you running the wire?
What voltage is the wire powered with?
What frequency is your PWM signal?