What size stepper motor do I-need.

[TheGoodGuy]

I am going to use PoStep60-256 drivers and 48V PSU.

[Boyan Silyavski]

I am going to use PoStep60-256 drivers and 48V PSU.

the motors that they sell at the same place http://www.poscope.com/nema23 are the same motors that zappautomation or cnc4pc sells. That are the motors that most people drive at 70V with Leadshine drives.
I also am looking at that drive you say, plus they have new 8axis ethernet board. Just today wrote them a big letter asking them many things about the board and the drives.

What i am saying is that when looking at the pdf of the motors StepperMotorDimensionsNema23.pdf the torque curve driven at 60V or 40V is very same till 3000rpm, hence 4 motors can be driven by 2x35VAC toroid 500w, which rectified will give ~49VDC, which is very near the drive capability /50VDC 6A/ . One of the questions i asked is if really this drive could drive the motor with this setup, i expect they will answer me tomorrow.

What i say is that will be better than the motor you say.

[JAZZCNC]

I also am looking at that drive you say, plus they have new 8axis ethernet board. Just today wrote them a big letter asking them many things about the board and the drives.

I've just received one of these boards for testing so I'll let you know.! . . . . Board looks Ok but dissapointing that it doesn't come with any connectors of any kind. This makes connecting more difficult than other boards as it needs IDC connectors to connect to board and then Terminal blocks for wires.

[Boyan Silyavski]

I've just received one of these boards for testing so I'll let you know.! . . . . Board looks Ok but dissapointing that it doesn't come with any connectors of any kind. This makes connecting more difficult than other boards as it needs IDC connectors to connect to board and then Terminal blocks for wires.

Great! given the price and the added capabilities like IO for custom panels i hope that works good. 125khz is also a good thing.

I agree for the IDC, but on the other hand i like that option , if their drives are good i mean, cause i could connect drives and BOB with cables. This drives should be DSP, yes? Its not mentioned at any place.

Honestly i realy have great hopes for that combo, cause i prefer EU made stuff than Leadshine for example in my machines. Especially given the size of the drives.

I was almost ready to buy a 4 motor drive and bob today. how good that you have it already.

My biggest questions are:
-any major drawbacks like definite inability to do something in mach3?
-4rth axis, gantry squaring and so on...


I will wait then to see what you say. I hope at the end somebody managed to make decent cheap Ethernet board with more than 4 axis.

[toomast]

I've just received one of these boards for testing so I'll let you know.! . . . . Board looks Ok but dissapointing that it doesn't come with any connectors of any kind. This makes connecting more difficult than other boards as it needs IDC connectors to connect to board and then Terminal blocks for wires.

Would be interesting to read your opinion on these boards...