Retrofitting a 1986 Maho MH400E

I have one like Andy pointed out, and even though it says 0.25-6 it works perfectly well on the 0.14mm² ferrules (the smallest ones I have.) and I think it might also do the 0.1mm² ferrules. (They are cheap Chinese tools but handy enough that not long after I got mine, several more were ordered for others in the shop.) I think it seems to work pretty good for little stuff, but I'd be a little worried about using it for crimping a lot of things at the larger end of it's limit.

Thanks Todd. 0.14mm² was what I meant

I'll get one of those. I didn't realise cheap chinese versions were available. I borrowed a similar one from a an Avionics guy at work, one with replaceable inserts, and it was a €€€ tool!
Mark

I have the one you can see in this picture:
forum.linuxcnc.org/media/kunena/attachme...5/klein_IMGP4263.jpg

Today was a good day;-)
I talked to a co-worker that I'm looking for a touch monitor and, guess what,
he was cleaning up a storage room and found this.
It is a former public information stand with vandalism-proof keyboard and 17" Touch Monitor.:


Some more impressions of my build.
A chopped Desktop PC with i5 Quad-Core, 16GB RAM and an 500GB SSD:


A selfmade housing for the MAHO-EXE.
It is made of 3/4/5mm junk sheet metal.
The PCB guide rails are made of rests of sheet plastic.
Not a beauty, but it works and is bullet proof :


The PC took a seat for the picture in its later position.
I chose this position because I need the space behind it, beside the Mesa boards, for the 4th-axis controller which I will definitely realise in the future.
As you can see, the cable of the X-Axis glass-scale is too short to mount the EXE where Mark placed his one.
I will have to exchange that cable in the long run:

Hi Hanno,

I suspected that someone who actually knows how to do this stuff could convert a Maho in a week or two. You are proving it. Respect.

No wonder that the German machine tool industry tanked in the 80's. The cost of production planning and after market support of having ever product go out the door as a one off must have been very costly.
Mark

Hi Mark,

all credits to YOU !
I agree, 1-2 weeks is realistic.
With the help of your documentation you send me via email it is pretty simple to wire these few lines step by step without putting much brain into it.
I would like to plead in your proposal to publish that docu as a cookbook in a wiki, on github/gitlab or on a website.
If one had all corresponding components available the wiring work could be done in one or two days. The work on the PC-and EXE housings took most of the time so far.
Hopefully the monitor and keyboard are ok, I only have to cut off the stand, weld a flange to it and all metal work is done.
I don't worry about the software configuration but it is the great unknown at the moment.

Hanmon Having the control counsel on a portable stand can be a big help when working in the electrical cabinet trying to figure out what is or isn't going on in there. Just weld a small shelf to hold your coffee cup .

The EXE card/board schematic

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I have not stumbled across any schematics for that board nor any of the other Phillips control boards. My thinking is the EXE Board was made by Hidenhain for Phillips who engineered the 432 computer control system for Maho .
Have noticed a progression in the EXE board design from early to the later boards which started to use surface mount components.. Suspect it was due to the early boards having ICs that became no longer manufactured , thus requiring a design update. If you stumble across any of the 432 control board schematics -- I would like to have a copy. Have talked to a Maho field service person ( aka Maho Doctor. in the USA) who said they only replaced the boards and never repaired any of the boards. Suggest you try asking Heidenhain if they have any EXE information that can be released to the public. Be very interested in what you find out.

Grounding a wires shield a both ends

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what a can of worms you have opened there ! O-horror , I can hear the ground loop guys raving ! To me if it works then use it the way it works.