Strategie bei Hurco BMC20 refit / Interfacing the Drives to MESA

Thanks for your Input,

I will follow your suggestions and go for 7i92 + 7i77 with optional 7i84
Is this setup straight forward enough for a beginner?
Or could it be a better decision to use the same hardware as Tom (he has the same machine) and if he supports me so far? wire the machine identical to rely on his setup as close as possible?

Another question is the PC Hardware i already contacted the Chinese Supplier of the PanelPC and i Could get this J19000 based PC with 64GB SSD and 4GB Ram and dual NIC in 18.5" touch with 1280x1024 for round about 550€ to the door!
Is it expectable that this hardware is good enough?
They claim to support Linux with this hardware?

Another input which came up above in german was to throw the Servo Drivers out because the old ones could be crap... And YES we tested the machine a few days ago and there is a red failure light on... So whats your suggestion throw this servo stuff directly out 1kW Lichuan Servos incl. driver and encoder are around 300€ per axis... Shall I go for it?

I want to have this rebuild done once and properly so it lasts kind of for ever at least next 10 years!

I appreciate your help a lot!
And wanted to thank all of you!

BR Andreas

Of course i can help, i still have access to that machine and most of the others i worked on.
You do not need the same hardware as i used, i use all that hardware only so i can have a cleaner installation and easier to follow during install or service.
For computer i used an asus mini ATX board and a 24' monitor without touch screen. Cost 210 Euros.
Drives: i would recommend using existing ones if they work, if they do not work you can change them at any given time later on. Spindle drive try to use the existing one as it has all the controls built in, like spindle orient and load and other stuff. Most of the cheap new ones do not have anything except speed control.
And by the way, the machine is not mine, it belongs to a local company that manufactures stuff for Austria and the machine came from Austria in a very bad condition, with spindle and Y axis drives dead on arrival and the X axis drive died soon after. Then again they got it for 3500 Euros, so it was cheap.
The new drives should be here by the end of the month and promptly installed and tested.

I have an Industrial boxed Panel PC available (2 of them) the are not very high powered but completly waterproof and in a stainless steel case without touchscreen.

Do you think this Intel Atom N270 @ 1.6GHz could be fast enough, it only has 2GB Ram but this could be upgraded.




Thanks for your kind support!

Andreas

poolizei wrote: I have an Industrial boxed Panel PC available (2 of them) the are not very high powered but completly waterproof and in a stainless steel case without touchscreen.

Do you think this Intel Atom N270 @ 1.6GHz could be fast enough,

Should be fine. Try running the latency test to make sure.

LinuxCNC doesn't need much CPU power. It ran perfectly well 15 years ago on the computers available then, and hasn't got any more complex in the core areas.

What Andy says is true for RTAI and non-Ethernet interfaces, but If you are using a Ethernet card and Preempt-RT you would probably need more horsepower. The dual core version of the N270 (N330) is just barely able to run a 1 KHz thread reliably on Preempt-RT...

I would suggest nothing slower than a J1800/J1900

So today I took some time and performed the Latency Test and tried some random Stuff while the test was performed (moving files, connecting ethernet, opening and playing youtube videos, moving windows) the outcome seems quite promising to me what do you think?



Please keep in mind I plan to use this hardware with Ethernet based Mesa Stuff and Or Ethercat based Servo-Drives

I have 3 of these units available got them nearly for free...
If they won't be suitable I would try to fit another small Mainboard into the case...

I appreciate your support!
and want to which all of you happy Easter.