Advanced Search

sounds like a synch or queuebuster command to stop the interpreter read ahead. As an example M66 will do this

There is a sim config that uses a python remap to create a custom Gcode:
github.com/LinuxCNC/linuxcnc/tree/master...remap/stop-lookahead

I have exactly the same right now. Mesa7i96s driving a Leadshine EM780S which drives an Omron Nema34 Stepper. At speeds above 200mm/min everything is smooth but below this speed the turning is very rough, particular when I edge it slowly with the handwheel. The Leadshine driver is currently set to x256 but I tried every setting from x16 up to x256.
Step length and -space is set to 3000, the Leadshine driver specifies >2µs.
Why would this only occur at low speeds, Steps missing or to high accelleration etc only occurs at higher speeds.

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