Stepper short list on VM32L Weiss mill advice - low inductance

[JAZZCNC]

If your going to go with Closed loop then your better going with 3 phase closed loop. The step angle is 1.2deg instead of 1.8deg so much smoother and the extra phase gives them a bit more torque higher up the speed curve. Only down side is they only come with 50Vdc Max drives unless you go upto Nema 34.

I've fitted loads of these and this company is good to deal with.

https://www.aliexpress.com/item/3303...61cf761f3tsKRK

RE Vat then it's dependant on the amount declared on the customs paper work (and there in lies a clue to getting it down) usualy there is no import duty other than a rip off fee of around £15- £20 the shipping agent charges for paper work.

[Hulksmash]

If your going to go with Closed loop then your better going with 3 phase closed loop. The step angle is 1.2deg instead of 1.8deg so much smoother and the extra phase gives them a bit more torque higher up the speed curve. Only down side is they only come with 50Vdc Max drives unless you go upto Nema 34.

I've fitted loads of these and this company is good to deal with.

https://www.aliexpress.com/item/3303...61cf761f3tsKRK

RE Vat then it's dependant on the amount declared on the customs paper work (and there in lies a clue to getting it down) usualy there is no import duty other than a rip off fee of around £15- £20 the shipping agent charges for paper work.

Thanks Dean,

They probably the best performance to cost ratio currently ? As still have the ballscrews to purchase so trying to get good performance as like everyone I have a budget

This will be paired with UCCNC and a u300eth (bought already) - If I get these I may need help wiring hehe

also would the 50Vdc make a massive difference compared to a 2 phase with 70-80Vdc driver

thanks again

[JAZZCNC]

also would the 50Vdc make a massive difference compared to a 2 phase with 70-80Vdc driver

Yes it will mostly make a difference to the speed but not by a massive amount, roughly 300rpm, these will give 1200rpm and the others will be 1500rpm.
They are not exactly like a standard stepper system and the encoders come into play so can restrict the speeds.

If I wanted to have excess power and plenty of speed along with AC drives then I'd fit these and sacrifice the smoothness 3phase offers as they are 2 phase.
Nothing gets close to these for power in the Nema 24 range. Again I've fitted plenty.

https://www.aliexpress.com/item/3279...16523421DXQOr7

The wiring is easy enough just shout if you need help.

[dazp1976]

Yes it will mostly make a difference to the speed but not by a massive amount, roughly 300rpm, these will give 1200rpm and the others will be 1500rpm.
They are not exactly like a standard stepper system and the encoders come into play so can restrict the speeds.

If I wanted to have excess power and plenty of speed along with AC drives then I'd fit these and sacrifice the smoothness 3phase offers as they are 2 phase.
Nothing gets close to these for power in the Nema 24 range. Again I've fitted plenty.

https://www.aliexpress.com/item/3279...16523421DXQOr7

The wiring is easy enough just shout if you need help.

Not fair!!!!!
Just looked at buying 2 and it wants £90 shipping?????

[JAZZCNC]

Not fair!!!!!
Just looked at buying 2 and it wants £90 shipping?????

email them.

[johngoodrich]

Yes it will mostly make a difference to the speed but not by a massive amount, roughly 300rpm, these will give 1200rpm and the others will be 1500rpm.
They are not exactly like a standard stepper system and the encoders come into play so can restrict the speeds.

If I wanted to have excess power and plenty of speed along with AC drives then I'd fit these and sacrifice the smoothness 3phase offers as they are 2 phase.
Nothing gets close to these for power in the Nema 24 range. Again I've fitted plenty.

https://www.aliexpress.com/item/3279...16523421DXQOr7

The wiring is easy enough just shout if you need help.

Jazz. I was wondering if you could clear something up for me. I was looking at these motors and drives you recommended and on the pics it says 20-70v ac. Is that correct or is it 220 ac straight input.

[JAZZCNC]

Jazz. I was wondering if you could clear something up for me. I was looking at these motors and drives you recommended and on the pics it says 20-70v ac. Is that correct or is it 220 ac straight input.

Yes John it's 20-70Vac or 30-100Vdc. The AC option Just saves messing around with Bridge and Caps but still need a transformer to get from 230Vac to 20-70Vac.

Some of the Larger Nema 34's drives like these work direct from 230Vac mains. These are great for larger machines because they spin fast and have loads of torque.
https://www.aliexpress.com/item/3279...3cac6f37mUvHpT