NMV 5000 vs DMC 65

[?Mark]

I'd love to include at least 1 or 2 additional machines here ( sorry James ), but those are the choices I was presented with.

Material cut would be 90+% aluminum, and mostly surfacing toolpaths.

 

Your input as always appreciated.

Thanks.

[Guest CNC Apps Guy 1]

It's cool. You're allowed to settle.

[?Mark]

[Greg Williams]

I would go for the Mori.

[?Mark]

Thanks, Greg. Can you share as to why the Mori?

 

I hear that Maho is an excellent machine. Fast, rigid and accurate...when it runs, but parts availability and service might be an issue.

[Mic6]

Aren't they the same company now?

[?Mark]

Yes they are the same company now.

[Joe788]

I wouldn't buy into DMG having any semblance of reasonable parts availability and service just because two companies bought a share of each other. I wouldn't even entertain the thought of purchasing a DMG, unless I had at least a 5 year guarantee on parts and service availability/lead time. Ellison is bad enough at working on Moris, then you're gonna throw in 4X more models, and 2-3 different controls along with it, and expect the techs to handle all of that?

 

I'd go with the NMV.

[Rstewart]

^^^^^^^^

 

+100000

[Trevor Bailey]

even with the NMV though, i have 3 customers and not one tech, that tried to help me and the customer dial in a post, could get on the same page. each tech told the customer that "their" way to run simultaneous motion was the best way. THEN, i get pdf's showing how the use G68's and G43.4's from the factory that were not right. long story short and much thanks to glenn stevens at CCC, we have finally got a great nmv post that actually uses all options in the control. was an absolute nightmare to get this going.

 

one other note, on of my customers could not get a bore to line up on a very simple part. start at B0 and rotate to B180. tech said it was mastercams code. so my customer programmed the part on the control for the tech to see that mastercam had nothing to do with it. from what i understand, that particular tech has not been back on site.

 

so, with all of that, i would recommend matsuura or okuma.

[huskermcdoogle]

one other note, on of my customers could not get a bore to line up on a very simple part. start at B0 and rotate to B180. tech said it was mastercams code. so my customer programmed the part on the control for the tech to see that mastercam had nothing to do with it. from what i understand, that particular tech has not been back on site.

 

This seems like a dynamic offset issue or rotation c/l location issue(used in macro offset calculator) . Something completely unrelated to the actual machine... Only thing that could be wrong with the machine would be a mechanical issue causing severe run-out in the rotary axis. I highly doubt that... Now the support that comes with the machines. That can be a whole other case. My experience with servicing a Mori is that it is horrendous. It is hard to come by documentation that actually applies 100% to your machine. That said we do not use outside help from our distributor to work on our machines and all of them are 10-15 years old. You can get just about any parts for them, but expect to pay an arm and leg plus your first second and third born children (better to get the wife working on another one)...

 

Husker

[Joe788]

 

one other note, on of my customers could not get a bore to line up on a very simple part. start at B0 and rotate to B180. tech said it was mastercams code. so my customer programmed the part on the control for the tech to see that mastercam had nothing to do with it. from what i understand, that particular tech has not been back on site.

 

 

Yeah, I've seen this happen before with the smaller NMV3000. The owner of the machine had a beautiful new Zeiss Contura CMM, so they waited until Ellison was all done, and then dialed in the center of rotation parameters themselves by cutting test parts and making adjustments.

[?Mark]

"the center of rotation parameters"

Wouldn't it have to be done with any machine, especially so with multi-axis after the installation at a customers site anyway?

 

Good stuff, keep it coming gentlemen

[DavidB]

DMG have 3D Quick set, precision calibration of the machines kinematics in seconds.

Finds the machines centre of rotation, accuratly and quickly.

[Joe788]

That's pretty cool David. How does the process work? Tooling ball and spindle probe?

[DavidB]

That's pretty cool David. How does the process work? Tooling ball and spindle probe?

 

 

Correct. Search YouTube for DMG 3D Quickset

[?Mark]

David,

Is something similar available on the Mori NMV?

[Joe788]

David,

Is something similar available on the Mori NMV?

 

Mark, the NMV doesn't really need an application like that, because the tilting axis will go 90 degrees in each direction, so it's pretty easy to dial in. Somebody with a good chunk of spare time could write pretty cool macro to do it automatically though.

 

Dialing it in on a machine that can only go +30/-120 on the A axis is a real joy.

[DavidB]

^^^ LOL

 

The DMG DMU will go A120 +/- You do not need to go 90 degrees each way to work out centre of rotation of an axis.

 

Before you bang your head you should understand

[Joe788]

^^^ LOL

 

The DMG DMU will go A120 +/- You do not need to go 90 degrees each way to work out centre of rotation of an axis.

 

Before you bang your head you should understand

 

That's absolutely correct, you don't need to go 90 degrees each way to find the center of rotation. It's just much easier, simpler, and quicker when you can.