[mactec54]

Yes the DMM systems are sold out of Canada, and made in China to DMM specs. I suspect the quality might be better on the DMM units as opposed to the lesser cost systems direct from China, but I can't prove that.

But most important is the documentation, warranty, and tech support. You are paying for that, and it is worth every penny if you have a problem. I would only buy servos from DMM Tech, or Automation Direct SureServo2 (Delta) products. Tech support from both of these companies is outstanding.

They are made in China in there own Factory, not by some other company to there spec's if you don't know then don't post incorrect Bs

[Jim Dawson]

They are made in China in there own Factory, not by some other company to there spec's if you don't know then don't post incorrect Bs

Um, I think that's what I said.

[mactec54]

Um, I think that's what I said.

No not by what you posted ( made in China to DMM specs. ) I replied to a post of yours a few years ago about DMM having there own factory in China I guess you forgot

Not a big deal, but there is a difference though of having something manufactured in China, and having your own factory in China
Apple is a good example of this, most Brand name Bearing Manufacturer's are in China the list could fill many pages of brand name manufactures in China that have there own Factories

[dazp1976]

Um, I think that's what I said.

No not by what you posted ( made in China to DMM specs. ) I replied to a post of yours a few years ago about DMM having there own factory in China I guess you forgot

Not a big deal, but there is a difference though of having something manufactured in China, and having your own factory in China
Apple is a good example of this, most Brand name Bearing Manufacturer's are in China the list could fill many pages of brand name manufactures in China that have there own Factories

Put your claws back in you pair. :argue:
1 of you will get (nuts) the other (wedge) lol.

[mactec54]

Put your claws back in you pair. :argue:
1 of you will get (nuts) the other (wedge) lol.

No need for your ridiculous post, (wedge) Jim knows where we are at

[jduke]

Mactec, it sounds like your pretty deep into DMM motors and sold on their benefits.

as a home hobby guy, I am still having difficulty with spending over $2000 on 3 motors when I still have to replace the spindle motor as well on this machine.

I had a Nema 34 12nm rated closed loop stepper motor that I popped onto the dm4400m this morning and was able to move the each axis with it well on X and Y I was able to get up to over 1000mm/sec^2 accelleration at 5000mm/min before the closed loop kicked the motor off

the cost of 3 12nm closed loop steppers is under $500 for the Mophorns that I have.


I can spend the $2000 on motors if it will really get that much better performance, but having never used AC servos in the past, I am having some reservations.

I am also probably only going to put a 2-3hp spindle motor on this machine, is having the excellent performance of AC servos going to be wasted with such a low HP spindle?

as it stands, I have 1800 in the base machine, and another 1000 in the spindle cartridge, so another 500 for a spindle motor
if I go with AC servos that would put me up to 5300 into the machine with the closed loop steppers Id be at 3800.

like I said, I am open to doing the AC servos if they would really up the performance, but I am having some reservations.

thanks for the input.

Duke

[mactec54]

Mactec, it sounds like your pretty deep into DMM motors and sold on their benefits.

as a home hobby guy, I am still having difficulty with spending over $2000 on 3 motors when I still have to replace the spindle motor as well on this machine.

I had a Nema 34 12nm rated closed loop stepper motor that I popped onto the dm4400m this morning and was able to move the each axis with it well on X and Y I was able to get up to over 1000mm/sec^2 accelleration at 5000mm/min before the closed loop kicked the motor off

the cost of 3 12nm closed loop steppers is under $500 for the Mophorns that I have.


I can spend the $2000 on motors if it will really get that much better performance, but having never used AC servos in the past, I am having some reservations.

I am also probably only going to put a 2-3hp spindle motor on this machine, is having the excellent performance of AC servos going to be wasted with such a low HP spindle?

as it stands, I have 1800 in the base machine, and another 1000 in the spindle cartridge, so another 500 for a spindle motor
if I go with AC servos that would put me up to 5300 into the machine with the closed loop steppers Id be at 3800.

like I said, I am open to doing the AC servos if they would really up the performance, but I am having some reservations.

thanks for the input.

Duke

You use what ever you can afford to spend on your machine and you will be happy with it

I agree you have to look at the machine and see if it is worth spending that much on, you may have already spent too much, what is the condition of the machine the ways the Ballscrews Etc.

I used to use only Yaskawa and there cost is more than that for just ( 1 ) motor and drive plus cables Etc. so can easy spend $3K Plus per axis for the best there is