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stepper motor how much torque needed?  

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(@boz-race-engines)
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(@yhakan)
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Posted by: @boz-race-engines

hi, im am needing a stepper motor for my water brake valve, its a superflow disk type that operates on 3/4 to 1 turn total. what torque figures would you recommend? is 3-4Nm enough? or do i need bigger? is 200 step enough also? would something like this do the job? thanks

https://www.ebay.com.au/itm/Nema-23-Stepper-Motor-3Nm-4-2A-10mm-Shaft-57x113mm-4-wire-CNC-Milling-Lathe/174327392394?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D370ebffd214b4f3cba1f4fe9ccd5f7cd%26pid%3D100675%26rk%3D3%26rkt%3D15%26mehot%3Dnone%26sd%3D172143803596%26itm%3D174327392394%26pmt%3D1%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3Ac7e87ec9-f62f-11ea-95c3-86aa33dec9c1%7Cparentrq%3A8a62d3631740a0f11d2f6b7bffff4642%7Ciid%3A1

Hello, I would go higher, my valve needed more . Check your valve by testing about 100mm out from center with a "type fisching scale) whats needed to turn it.....with full waterpressure on .

I used the Nema 33 ....the steps is no problem ..you will set that in your dyno..and stepper drive.

BR yhakan

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Posted : 14/09/2020 6:08 am
(@boz-race-engines)
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i cant imagine this being very powerful from late 80s technology its smaller that the palm of my hand and only a 6mm shaft with a rubber coupling

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Posted : 14/09/2020 8:47 am
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