Thread: Nema 23 4Nm Stepper Motor
Very little use on a Z axis. Curiosity got the better of me and have just replaced with a closed loop stepper drive and motor combo with an eye to going this route on all axis eventually.
Its an 8 lead 2 phase with a good 25cm left on the leads.
Datasheet and dimension here. http://cnc4you.co.uk/resources/60BYGH401-03.pdf
£25 + £4 postage
Last edited by Jonathan; 13-02-2013 at 04:46 PM. Reason: Sold
I'll let someone else have this, got enough !John S -
Ill take it please.
Hi Ant, could you share about the 'closed loop' set-up? I guess this is servo? Please post on your Strike thread :)
Its not servo but closed loop stepper. Basically a stepper with an optical encoder and matching driver. Works quite well but limited speed and torque from this bottom of the range offering. Its only 50v and 2Nm but that's OK for a Z axis. You can get bigger and better versions based on the same tech but I wanted to try it out before committing to that sort of outlay.
New Leadshine 300W 3-phase Hybrid Servo Drives Set HBS57 Drive + 573S09EC Motor | eBay
Jazz covered the same model in this video
Bigger, badder version here. This one runs upto 100v and 8 or 4Nm depending on the motor model you choose. I'd go with these for the X and Y if you've got a some weight in the gantry and a large cutting area.
Leadshine 300W 3-phase Hybrid Servo Drives Set HBS86H Drive + 86HS80-EC Motor | eBay
That's a big jump in price from the one you bought to the larger motor, can understand why you decided to try a smaller motor first lol. Still the price is still well below what you would pay for a servo set up.
Sorry to keep this off topic from the sale, but what is the difference between a servo motor and this? Servo really just means a feedback loop which is what the optical encoder provides. Also is the smoothness Jazz mentioned not simply to do with the motor? I wouldn't think the encoder will be responsible for that.
FOR SALE: Nema 34 12Nm stepper motorBy dsc in forum Items For SaleReplies: 0Last Post: 08-05-2014, 12:14 PM
By rckeith in forum Stepper & Servo MotorsReplies: 0Last Post: 31-05-2013, 02:32 PM
By drumsticksplinter in forum Gantry/Router Machines & BuildingReplies: 7Last Post: 03-04-2013, 03:20 PM
By LoveLearn in forum Gantry/Router Machines & BuildingReplies: 5Last Post: 08-02-2012, 12:52 AM
RFQ: Nema 23 motor mountsBy luke11cnc in forum Projects, Jobs & RequestsReplies: 14Last Post: 06-10-2011, 01:21 PM