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    Resurrection of a lobotomised Maho 600T

    https://www.practicalmachinist.com/forum/attachments/20230912_170430-jpg.408397/ Are those box ways bolted onto the main casting? Interesting, never seen that on a Maho before, seen some machines with bolted on dovetail sides on top, but bolted boxway rails are new to me.
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    Deckel FP4NC Dialog 11 : Error 7104

    Didn't change DIP switches on my servo amplifier, just had the same Error 7104 as you, probably because the machine was powered down for a while. Since there is hardly no info in orange book, how to troubleshoot, you have to search here and just try things, so I found this. Don't know, how far...
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    Deckel FP4NC Dialog 11 : Error 7104

    And set parameters 1110 & 1112, Auto-Offset and Geschwindigkeitsabgleich to zero, else "Geschwindigkeitsfehler" will appear weirdly as some summed up error. Those parameters are the equivalent to flipping DIP switches on Dialog4 for servo adjustment. Then move X/Y/Z with manual button and adjust...
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    Very late best condition upgraded FP4NC ever?

    Yes, 2838-0513, my other Dialog11-FP4NC is a 2838-02xx, I think, plate is towards a wall, currently, so I can't check exact numbers. Ways are hardened and in perfect condition, like my other FP4NC. Only machine with soft ways is the white D4/FP3NC from 1993, with botched "paintjob" from FPS...
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    Very late best condition upgraded FP4NC ever?

    Well, had to get everything covered from the damn rain and was awake since 5 in the morning, couldn't sleep, because I wasn't sure, about wether a big forklift would be available for unloading. Then, diesel engine of excavator wouldn't start, to get it off the driveway, likely too cold, that...
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    The worst has yet to come

    Sad, because TOS was one of the few, that were still making real cast iron machinery, not epoxy granite junk like what new Hermle or DMG are....
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    Bosch VM 60/R-T

    Darlington drive transistors get DC-voltage over DC-link busbar on top. 3Phase rectifier is inside the power supply unit. Power supply unit also makes high frequency voltage, for those 3 transformers, back when I repaired my ASM25, I used Tek FG501, audio amplifier and a large 24V/220V...
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    FP3 Active with trouble

    Welding cast iron is nasty, I agree. But hardened steel, anneal at 300-400°C and it shouldn't be so hard that it's brittle and cracks. Doubt it's nitride hardened, probably induction hardened teeth, only. Then weld those teeth with a better filler metal and leave it in semi-soft state, that gear...
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    FP3 Active with trouble

    Cast iron or steel? For steel, I'd grab my TIG welder and weld that tooth back up, file it to size and run it for another 20years. Cast iron, take silicon bronze and oxyacetylene torch.
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    Looked at a unicorn FP4CCT with weird owner

    Internal coolant could be huge problem, especially if it's sitting for long time. If water based coolant leaked somewhere all over inside the spindle, it's truely a parts machine, because it's likely a big rusty mess. Would run that stuff only with cutting oil now, water based stuff is nasty, if...
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    Scrapping another FP4A D11

    Dialog11 NCs also no quill on horizontal, no quill makes the spindle so much more rigid, horizontal on Dialog4 FP2NC is flimsy and gets stuck at high rpm, D11 NC spindle is a monster. 2836/37/38 FP-NCs are the best, CCs with sliding head also look cool, there is even very few FP5UC, with weird...
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    Scrapping another FP4A D11

    The thing is, most of them are past their useful life when sold, nowadays. Ball screws, bevel gear on the head, spindle taper, after like 10'000h, those things go out one after another. The ones who care for them nicely, usually keep them, because they really like them. What's sad to me, if...
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    Deckel FP3NC - Problem with NSV56 Board

    So, is the bad inductor theory true/verified?? Because I have an ugly NSV56 for repairs, thought it would be easy, but it's a nasty bitch. If I power it from 24VDC power supply without load, outside of D4 control, all voltages good. Powered from Deckel 24VDC, outside of rack, all fine, too...
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    One for the boneyard

    It was a TNC355 and supposedly fully working, lol ;-D With seized ways like that, especially on Z-axis, which is argueably the hardest to repair, no surprise, noone wanted it.
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    One for the boneyard

    Another very dead one: https://www.kleinanzeigen.de/s-anzeige/deckel-fp-3-nc-ersatzteile-grundgestell-fraesmaschine/2462182285-84-18400
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    What is this 40 taper tool holder for?

    Likely to screw big facemill onto. Mikron and Reiden mills have threads on spindle for that. https://media.exapro.com/product/2023/01/P230120165/5db2277f666014f2e1fbeccd39b44cab/mikron-wf31d-p230120165_7.jpg
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    Lightning killed my Hurco VMX

    Do some board level inspection and see, how far overvoltage has progressed into the servo&spindle drives. AC/VFD drive ususal layout: Fuse, Big rectifier, DC stage with lots of caps and AC converter that runs on DC stage. With a bit of luck, only rectifiers/diodes or fuses got blown, a few $...
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    Found a cool Deckel tool

    Drawbar adjustment tools? Did DIY them, when I needed them, of course that sucks, if your only mill is the one, that just broke down ;-)
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    Deckels at auction today in Germany

    For me, it largely depends on condition, no problem paying 5-8k for an almost new FP3/4/5 NC/CC. But you have to be quite lucky, to find a machine in that condition nowadays. Those for sale are mostly the worn ones, high hours, used for production, rusted/seized ways with rancid coolant... Not...
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    Resurrection of a lobotomised Maho 600T

    Maho 600T is CNC332, which basically is Heidenhain TNC155. Good thing you have Heidenhain scales, should be easy to put a Heidenhain EXE in between and you get 0.001mm quadrature signal output, directly usable on LinuxCNC Heidenhain TNC155 unfortunately has SPS/PLC inside, likely what was used...
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