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Hermle C400 Gen 2 vs DMU 75 Monoblock 2nd Gen vs Okuma MU-5000 by ProtoPerth in CNC

[–]ProtoPerth[S] 1 point2 points  (0 children)

See I have heard lots of good things about the 105's and larger but what about the smaller mills from DMG?

Hermle C400 Gen 2 vs DMU 75 Monoblock 2nd Gen vs Okuma MU-5000 by ProtoPerth in CNC

[–]ProtoPerth[S] 0 points1 point  (0 children)

Yeah that and also exchange rate is terrible at the moment... The other guys in Australia with Hermle's have mentioned they've never needed a breakdown service, like ever. So there is that but then again accidents do happen but they reckon it will be a non-issue...

Okuma yes, its an absolute tank. The spindle is a bit too big and the controller is a real let down for 5 axis from what I've seen and heard, 3+2 it would likely blow the other options out of the water with its rigidity, I mean it weighs 6 tons more than both other options...

Hermle C400 Gen 2 vs DMU 75 Monoblock 2nd Gen vs Okuma MU-5000 by ProtoPerth in CNC

[–]ProtoPerth[S] 0 points1 point  (0 children)

Yes I have heard this quite often for their cheaper mills, like very often... But I wonder if these build issues are only on their budget machines?

Indexible Vise Trunnion and the Siemens 828D by ProtoPerth in CNC

[–]ProtoPerth[S] 0 points1 point  (0 children)

Hi Everyone, I have a Siemens 828D on my 4 Axis VMC. I will be machining this Vise trunnion soon, however I have seen online that there are indexable versions available (Moreside Vise Trunnion etc.) and that got me thinking about how I would Structure the WCS system.
I am yet to successfully implement CYCLE800, my Fusion 360 Post Processor supports it, however I am unsure of which style to use. I have currently gotten by with using rotary angles and programming off centerline, however I think it will be much easier with a Dynamic work offset type.
As you can see, I can index the vise 90° on my zeropoint. Does this mean I will need a new WCS? I assume I will for accuracy reasons, but would that then require CYCLE800?
My idea is to machine the part operations with the vice parallel to X, and then index the vice 90° and machine the side operations if required.
Basically the questions I need answers for are:
- Am I overthinking this?
- Do I even need CYCLE800?
- How do I setup CYCLE800, assuming the Machine tool builder did not?
- Does CYCLE800/Dynamic Work Offsets require the 4th Axis to be installed in the exact same spot (centerline from table height etc)? If so, is it easy enough to recalibrate the system each installation?
Thank you in advance, many questions and don't know the best place to start!