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Hi Chris,
Nice to know there is another like mine in NZ. You've probably gathered I'm from NZ, but I live in Sydney NSW.
The controller on your machine is probably an old Philips one. It's probably not worth wasting time on. Better to go with  Mark's effort using LinuxCNC.
Mechanically, and some electrical I can help with.
If it is like mine then the hydraulic pump runs completely by itself. No controller involved. As soon as you power up the machine you should hear it growl.
I've attached a photo of mine and a cobbled up .doc of a Hawe brochure with the data values for mine added. On mine it's running on 415 VAC. NZ and Australia use exactly the same standards.
Since it's 3 phase it needs a contactor. In my case 3K1. A very big Siemens contactor for such a small device. I think I've put my power schematic up a way back in this thread. The wiring comes directly from the Maho's main isolator switch, then through a motor starter breaker 3Q1 and then 3K1. That is the complete power wiring.
If you look at the photo I've attached you will see the hydraulic unit on mine. It's in the rear cabinet bottom door. In the photo it is half out of the cabinet so I could work on it. The 3 things on top are hydraulic solenoids. The left unclamps my rotary table. The center one isn't used and the right one with the 5Y1 tag unclamps both Z and Y spindles simultaneously. Unfortunately the pressure switch, 5K1, that operates the pump I'd removed so I could get it where it is. The pressure switch screws onto the fitting sticking up at the rear. The fitting also has a stopper plug tee'd on for  a pressure gauge if you want. The pump simply runs when the pressure switch closes. The pressure switch connects to the 6V2 24VDC power supply on mine. That comes on a little later during the start sequence. Since there is no accumulator the pump will pulse on now and again very briefly, but it runs with a loud growl when you turn the switch on for tool change. Remember that the pump runs to release the tool by retracting the Belleville springs. When you release the pressure the springs pull the clamp claws back to retain the tool holder. The black hose on 5Y1 runs directly to the rotary joint on top of the Z axis. It also must get into the Y slide somehow, but I haven't looked at that.
I haven't bothered to bleed those hoses after I've had the spindle apart. My guess is they act rather like an accumulator so the pump doesn't chatter on and off. Hawe does supply the hydraulic unit with an accumulator if it's needed. Maho hasn't seen the need.
Good Luck,
David

 

Hi everyone.
I wanted to ask if a stop function for reading gcode blocks has been provided, via an ISO command.
Several CNCs have a stop for reading prediction.
Siemens uses a command called stopre
Rexroth uses a command called wait
etc..
This is important when performing mathematical calculations in the part program and associating values ​​to variables.
In these cases, the prediction must be stopped, the next gcode must be executed line by line, in order to perform the calculations correctly, and then resume the prediction.
If the prediction is not stopped, the calculations could be wrong, because they are performed before updating other previous calculations.

Hello David, Mark and others in this group
Thank you all for your input.
David it seems your machine is the same size and model as mine.
I have removed the automation from mine and it is now a manual milling machine.
I had planned to change it to linux but at my age it is too hard. My friend Brad who could have helped me, has now moved to Australia.
I changed the grease in the horizontal spindle. Since then I have been unable to use the tool changer. There seems to be an air lock in the hydraulics. This has been a problem for several years. Health issues have delayed an earlier fix.
Last week I removed the spindle and adjusted the gripper. I have a drawing of the unit but I can not see how to get at or check the spring washers. Can any one help me please.
On the Maho 700c there is what appears to be a breather or sight glass connected to the hydraulic lines from the tool changer. Could anyone advise me more. Thanks for your interest. Chris McMullen
Auckland New Zealand

Might be worth trying in the GMOCCAPY Section, even linking back to the issue in this thread.

Was thinking about this last night, it may be worth looking at this regarding swap. Just on the off chance.

forum.linuxcnc.org/9-installing-linuxcnc...only?start=30#322251

So after further testing I can tell you that the axis GUI is rock solid. No issues when left for extended periods of time.  When I get some more time I will use SSH to poke around when running GMOCCAPY.

Oh, and on that screenshot, I did NOT run

swapoff --all
systemctl --user stop pulseaudio.socket
systemctl --user stop pulseaudio.service
sudo sysctl kernel.sched_rt_runtime_us=-1

I guess they were unnecessary. (Although maybe I had added that last one to startup in some way before, but I don't remember.)

For anyone wondering when I tried with the R5 340X graphics card, the max base jitter went up to +/-30us.  So I guess that isn't a good graphics card for linuxcnc, or maybe it just doesn't work with the A880GZ and linuxcnc.

Also, in case anyone is interested in, here is a screen shot including the watch of /proc/interrupts when using the integrated HD4250 graphics card with the biostar A880gz .

 

So far, that works!  I don't think I ever would have gotten there without your help.  Thank you.

I didn't end up deleting everything in my grub setup, but I put in everything you added.  The 1090T only has 6 cores, so I reduced the 7s to 5s.  I ended up with:

 smt=1 ro quiet skew_tick=1 nosmt=force mds=nosmt mitigations=auto,nosmt irqaffinity=0-1 kthread_cpus=0 rcu_nocb_poll rcu_nocbs=2-5 nohz=on nohz_full=2-5 isolcpus=2-5 intel_pstate=disable amd_pstate=disable idle=mwait clocksource=tsc tsc=reliable cpufreq.off=1 cpuidle.off=1 intel_idle.max_cstate=0 amd_idle.max_cstate=0 processor.max_cstate=0 nowatchdog nosoftlockup acpi_irq_nobalance noirqbalance default_hugepagesz=1G hugepages=4 transparent_hugepage=never threadirqs forcedeth.use_msi=0 mce=ignore_ce nmi_watchdog=0 audit=0 initrd=/install/gtk/initrd.gz

Not only does it work, it is also running much cooler.  Now the CPU is around 31C, and before it was near 50C.

This result is using the A880GZ with integrated HD4250 graphics.  (I didn't need the R5 340X, but I may try it out just to give others info.)
 

Thank you so much!