I NeeD HeLp PLease AM882 a good choise

[JAZZCNC]

It sounds like they're offering you a different brand of rail, e.g. LG or TBI, which is probably fine. Not many people here have bought them yet, so it's hard to compare the quality and even then the differences are likely to be so small it's hard to quantify. The TBI brand rails I got from aliexpress seem fine, so next time I need some I doubt I'll get Hiwin.

I've had several sets of TBI linear rails now and they have been fine and while not quite smooth has Hi-win they are still more than good enough and lot cheaper. I've been using SBC Linear rails n.mnow for years and they have been good never given me any trouble, I run them on my own machine and have punished them quite a bit so know they can stand hard life but the TBI feel and work just has good so I've no reason to doubt they will be just has good.!

Chai is now selling them for those that don't know.!!

[jpsicilia]

I bought the rails to linearmotionbearings2008 in ebay usa from a person call Chai ,linearmotionbearings2008 on eBay , I believe its the same guy. He offer the linear rails.

[jpsicilia]

Hello again, Jonathan I send a mail to CNC4YOU to ask if they can ship to Argentina, anyway I was looking for the NEMA23 you mentioned and found this model Power Motor! Wantai Nema23 Stepper Motor WT57STH115 4204A 428oz in 4.2A Medical Automation Imaging Printing-in Stepper Motor from Industry & Business on Aliexpress.com I think its correct but I want to be sure, and I also found this offer http://www.ebay.com/itm/Germany-Ship...item1e7677983f ,I dont know if DQ542MA drivers work for me or I shoud go for MT880 for the x axis and combine it with other cheaper for the other axes? Really Its easy buy all together but as I sed before I dont now anithing about electronic. Thanks for your time and advice.

[Jonathan]

Hello again, Jonathan I send a mail to CNC4YOU to ask if they can ship to Argentina, anyway I was looking for the NEMA23 you mentioned and found this model Power Motor! Wantai Nema23 Stepper Motor WT57STH115 4204A 428oz in 4.2A Medical Automation Imaging Printing-in Stepper Motor from Industry & Business on Aliexpress.com I think its correct but I want to be sure

The inductance is marginally worse than the CNC4YOU (and Zapp) motors, but you're unlikely to notice much difference assuming they do actually meet the specifications. I measured the inductance of some of the motors I got from CNC4YOU and it was within tolerance.

, and I also found this offer �Germany SHIP Free SHIP】4Axis Nema23 Wantai Stepper Motor 425oz in 4 2A CNC Mill | eBay,I dont know if DQ542MA drivers work for me

Definately don't buy those drivers. They're only rated for 50V, so they've used 36V power supplies which is far too low. As you increase the speed required from a stepper motor, the supply voltage must be increased to maintain a high torque output. It's therefore best to run the motors you've chosen (or the CNC4You / Zapp ones) at around 70V. You therefore need to pick drivers which are rated for 80V - e.g. DQ860MA, AM882 and no doubt others which are available from Aliexpress.

shoud go for MT880 for the x axis and combine it with other cheaper for the other axes? Really Its easy buy all together but as I sed before I dont now anithing about electronic.

Up to you, so long as they're rated for 80V.

[jpsicilia]

Hello Jonathan, is there any power supply do you recommended? Jazz told me to buy this [URL="http://www.zappautomation.co.uk/en/digital-stepper-drivers/318-2m2280n.html"] but I have the same problem( I can only buy on aliexpress and ebay) maybe you can recommend another power supply so I can find it, I dont now if I need one or more than one. Thanks,you have been of great help.

[JAZZCNC]

Hello Jonathan, is there any power supply do you recommended? Jazz told me to buy this [URL="http://www.zappautomation.co.uk/en/digital-stepper-drivers/318-2m2280n.html"] but I have the same problem( I can only buy on aliexpress and ebay) maybe you can recommend another power supply so I can find it, I dont now if I need one or more than one.

Juan, I would have only told you to buy that PSU if you didn't want to build your own. My first choice and advice I'd usually give first is to build your own has it's cheaper and can be tailored to suit your exact needs.
One of the problems with most Off the shelf PSU's is they all seem to fall short of the ideal requirements either on Volts or Amps so you end up buying 2 which makes it expensive and more room required in control box. So given your location then I would think it would be easier for you to locally source the parts to build one than trying to source ready built PSU to suit your needs.

[jpsicilia]

Thanks Jazz, I'll wait until buying the nema and drivers, and if you help me I think I can make the power supply. I have the tools, digital tester and welder to be able to do it. I´ll keep you posted. Thanks for everything!

[jpsicilia]

Hello guys I recieved all my stuffs from china,I want to build the psu suit for my needs. Can you give me an advice to buid it please.
I have Axis X=2 AM882,Axis Y=1 AM882,Axiz Z=1 DQ860MA,four Axiz=1 DQ860MA,Motors 4PCS Nema 23 stepper motor 425oz-in,3A,2ph,1.8°. Thanks for everything!