Stepper short list on VM32L Weiss mill advice - low inductance

I spoke to Annie from there. The postage is between 90 and 140 USD. This is because of the virus and very few flights. Also you will get a better price going via Alibaba with them. She said better to wait till things get back to normal

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Originally Posted by Hulksmash

I spoke to Annie from there. The postage is between 90 and 140 USD. This is because of the virus and very few flights. Also you will get a better price going via Alibaba with them. She said better to wait till things get back to normal

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Yes I'm getting the same problem with stuff sent via Air. If your in no rush then wait it out, it will come down sooner or later.

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Originally Posted by JAZZCNC

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.

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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.

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Originally Posted by johngoodrich

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.

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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

Ok fair enough. I might still get some as I would like to go closed loop and I can run them at higher DC voltage than I am at the moment anyway. Currently at 68vdc but could get them up to 90 to get a bit more oomph

I haven't used close loop steppers myself yet, but just had an open loop stepper stall that messed up a piece with a lot of work in it. If I was building a new machine I would only go with closed loop.