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Bill Gruby
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Yup. I want to see for sure what it will take roe a stepper motor.
"Billy G"
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"Billy G"
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- Jun 23, 2011
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While this article is about 5-phase steppers (an oddball) vs 2-phase motors, there is a lot of good stuff about detent torque and stuff:
http://www.orientalmotor.com/technology/articles/2phase-v-5phase.html
John
http://www.orientalmotor.com/technology/articles/2phase-v-5phase.html
John
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- Jun 23, 2011
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Found even more good info on that site. Here's the index to their articles list. Check out both the basic and advanced sections...
http://www.orientalmotor.com/technology/index.html#step
John
http://www.orientalmotor.com/technology/index.html#step
John
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Bill
Infro on this page touches base on many of the things in this thread. I thought it might be helpfull to you , and others. If it shouldnt be here, let me know, and Ill delete it.
http://www.kelinginc.net/index.html
Scroll down to fundamentals and operation
Seems like lots of good infro here.
Infro on this page touches base on many of the things in this thread. I thought it might be helpfull to you , and others. If it shouldnt be here, let me know, and Ill delete it.
http://www.kelinginc.net/index.html
Scroll down to fundamentals and operation
Seems like lots of good infro here.
- Joined
- Jul 7, 2012
- Messages
- 641
I don't see why it should be a problem, Keling motors are widely used, and in fact probably the most common among hobbiests.
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Bill Gruby
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Links to info like that are apprciated here.
"Billy G"
"Billy G"
Ah, gotcha.
Servo's are a bit more expensive than steppers, mostly because the controllers are more expensive, and you have the added cost of encoders, and gearing (you will usually see servomotors geared down because they tend to have lower max torque, but higher (usable) top end RPM.
The difference is not night and day though. I wen't with servo's for my machine, because I figured, if I was gonna do it, I might as well go all out. The main disadvantage with servos is that tuning them can be really tricky (we haven't talked much about servo's, so we haven't gotten into tuning them).
Servo's are a bit more expensive than steppers, mostly because the controllers are more expensive, and you have the added cost of encoders, and gearing (you will usually see servomotors geared down because they tend to have lower max torque, but higher (usable) top end RPM.
The difference is not night and day though. I wen't with servo's for my machine, because I figured, if I was gonna do it, I might as well go all out. The main disadvantage with servos is that tuning them can be really tricky (we haven't talked much about servo's, so we haven't gotten into tuning them).
B
Bill Gruby
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A myth dispelled, I think. Stepper motors are not in a continuously smooth movement, but in steps as their name says. A DC motor moves smoother but cannot stop on command in a givin position. The increment steps of a stepper motor are so fast that we cannot see the jagged movement. Also they are so fast that the cut is actually smooth. I think I finally have it. Sorry but I have to be thorough.
"Billy G")
"Billy G"
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