Retrofitting a 1986 Maho MH400E

have you made any progress?

very strange, such a linux is actually totally stable by nature and doesn't destroy itself.

You have not made any updates in the meantime, right?

No progress. It worked, then there was some wierdness in the graphics, so I hard rebooted wih the power switch, and since then have this error. No updates, the Maho's PC isnot connected to the web.
Mark

Every time LinuxCNC is shut down, it rewrites the .var file, and may rewrite the .ini file to save settings that have been changed. On rare occasions, these files may become corrupted. Do you have backups of them? I always make a backup of the complete configs file directory after I get everything working.
Jon

I am only starting with LinuxCNC, but I am a programmer, so I'm pretty sure that I could figure it out if we were able to connect on skype/zoom or sth. If you still need help feel free to email me at drogus (at) gmail.com (sorry for writing it here, I can't seem to send a private message for some reason)

Hi Droque and Tommy,
Sorry for the slow response. I was out with covid. Nothing bad, vax worked, but stayed out of the cold basement for about 10 days, to give avoid aggravating the respiratory tract.

I still need to restore the INI and HAL files from the back up to see if that fixes the problem. If that doesnt work, I'll get back to you.

It is weird that forum has the "connect" with other members, but there is mothing which can be done with that connection,.
Mark

Hello Mark,
first I want to thank you for all the work and the beautiful implementation of the MAHO gearbox state machine code (please thank Jin from me).
Also for your channel that provides us with great content.
I changed your .comp to fit my Deckel FP4 and it works quite well. Some small tuning is still required but everything works ok so far.
I have a short question about the use.
I wired the
net spindle-vel-cmd-rpm-abs mh400e-gearbox.spindle-speed-in-abs
so the comp gets the actual speed required from LinuxCNC. This means that it changes to neutral every time I want the spindle to stop or if I make a toolchange.
I was thinking about changing the script to handle the complete spindle speedcontrol, including CW and CCW rotation of the Spindle the brake and so on.
How did you implement this?
I still want to have the neutral gear but I do not want it to change into neutral every time I stop the spindle.

Also I want to provide the finished comp and .c .h files with a wiki as soon as I am done. Do you want to include it in your github or should I create my own?

Thanks again.
Greetings from Berlin
Andreas

Hello Andreas,

i have done no deeper look into marks component yet, because i have written my own comps for that...

I would suggest to trigger an gear/ speedchange only with an transition from spindle off to on.
So if the spindle stopps (m5) and speed-abs is set to zero, nothing is done, if you do the next spindle start (m3/m4) the actuall speed-abs is used for selecting the propper gear stage. with this you can select neutral if wanted with s0 M3.

With this machine seamless speed change is not needed, related to this you will always have an spindle stop before an speed change....