Converting an old DMU 50, where to start?

im also curious now, you show 2 of the axis motors, both have brakes. i wonder if all 3 do as some sort of safety feature.

Yes, they all do have brake. The brake is connected parallel on all motors and seems to be only for emergency stopping

interesting
dmg/maho has always had pretty advanced safety. my late 80's machine had clutches on each axis for crash protection and a even camera to detect broken tools.

looks like you are in good shape then, interested to see where this goes. may people convert older maho's which can be bought for pennies. this is the first "modern era" dmg ive seen being done.

i no longer have the power to run a machine like this sadly, gotta stick with the little stuff.

Yes, I´m super exited, I´ve allready prepaired the garage with a 5q10 cable on 63 amps, the ol´girl needs some power! Now I just need the specialists to chime in on whats boards to use, budget around 1000-2000$ (if thats what we need, but ofcourse less is better and leaves more $$$ on the table for cool hop ups!)

Well the baseline would be the mesa 7i77, or the newer ethernet variant (7i97), However you will likely need 1 or more extra IO cards, although with no atc or gears it should be relatively simple.

If this is a running machine, i would first power it under the tnc124 and see what every function does.

So this kit would bring me everything I need to get things up and running?
77I7 + 5I25
store.mesanet.com/index.php?route=produc...oduct&product_id=214

And ofcourse a moderate PC with a PCI slot...
But the 7I97 does that one not need the 5I25 card? Does it connect to the pc through the ethernet cable or what? That would be handy, cause it would open up the possability to use these new small pc´s that have no pci slot...

I would go for a 7i94 +7i77. Then you can add io using 7i70 and 7i71's. 

Or as mentioned 7i97 but add a 7i74 and 7i70/71's as required

so those 2 options effectively do the same thing, both ethernet solutions with 8 ports of serial expansion. option 1 is $30 cheaper. in around $500 total depending on how many extra io boards you end up needing.

you get 6 servo axes with encoder feedback. you need XYZ and Spindle, then you can add both your rotary table axes on if you can figure out how.

Thanks for the input, how does the 7i94 connect to the 7i77 since the 77 has db25 pin connector but 94 has ethernet and 26 pin idc