MechMate CNC Router Forum

Go Back   MechMate CNC Router Forum > General - MM Build
Register Options Profile Last 1 | 3 | 7 Days Search Today's Posts Mark Forums Read

Reply
 
Thread Tools
  #1  
Old Tue 02 July 2013, 14:25
paulus
Just call me: paul
 
jhb
South Africa
stepper motors 4 or 8 wire leads

Hi guys.
I wonder if anyone can shed some light on this for me. I don't know any thing about stepper motors and how they work. So what I need to know is what is the differance between a 4 lead and a 8 lead motor and witch one is better and why? I have read some posts and went on the net but just not getting a clear answer. I want to buy some motors and localy they only have 4 leads so I am in two minds to spending a lot of money getting it from the US or a little cheaper in SA.
Can any one help please

Paul.
Reply With Quote
  #2  
Old Tue 02 July 2013, 15:49
2e0poz
Just call me: Paul
 
Swindon
United Kingdom
If the 4 wire are advertised as Bipolar then they are prewired in parralel already. The 8 wire ones would need to be wired back to just 4 connections meaning more wires to think about tats all. The difference is just about the ability to wire the winding in series or parralel. Google Bipolar parralel vs unipolar, should bring up plenty of pics showing you the difference.
Reply With Quote
  #3  
Old Tue 02 July 2013, 15:55
paulus
Just call me: paul
 
jhb
South Africa
Ok so the speed and power wil be the same?
Reply With Quote
  #4  
Old Tue 02 July 2013, 16:03
2e0poz
Just call me: Paul
 
Swindon
United Kingdom
yes
Reply With Quote
  #5  
Old Tue 02 July 2013, 16:07
paulus
Just call me: paul
 
jhb
South Africa
Thanks paul
Reply With Quote
  #6  
Old Tue 02 July 2013, 19:01
bradm
Just call me: Brad #10
 
Somerville(MA)
United States of America
You should check all the other specifications of the motors, in particular the amperage and impedance values, and how well they match up with whatever you are planning to use to drive the motors. The 4 vs. 8 (or 6) wire piece may be the least important specification.
Reply With Quote
  #7  
Old Wed 03 July 2013, 00:21
hennie
Just call me: Hennie #23
 
Roodepoort JHB
South Africa
Go to CNC Direct` s website .Somewhere Greg have some reading on the motors it should help.
Reply With Quote
  #8  
Old Thu 04 July 2013, 05:54
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Have you looked at this thread?

http://www.mechmate.com/forums/showthread.php?t=256
Reply With Quote
  #9  
Old Thu 04 July 2013, 07:05
Surfcnc
Just call me: Ross #74
 
Queensland
Australia
Note that 4 wire, 6 wire and 8 wire motors are all run back through the gantry as a 4 wire cable.
The "extra" wires are actually joined very close to the motor, like inches away in the shrink tubing.

Read up as Metal Head suggests as the power supply is very important to get right. How you wire your motors will effect the speed, torque and power supply requirements for the exact same motor.

Ross
Reply With Quote
  #10  
Old Thu 04 July 2013, 13:31
paulus
Just call me: paul
 
jhb
South Africa
Thanks guys you all realy helped a lot. Next step gearbox design. I will also post some pics of my small mm this weekend.
Reply With Quote
  #11  
Old Tue 16 July 2013, 00:29
DrewHoffman
Just call me: Drew
 
Albany
United States of America
Quote:
Originally Posted by paulus View Post
Hi guys.
I wonder if anyone can shed some light on this for me. I don't know any thing about stepper motors and how they work. So what I need to know is what is the differance between a 4 lead and a 8 lead motor and witch one is better and why? I have read some posts and went on the net but just not getting a clear answer. I want to buy some motors and localy they only have 4 leads so I am in two minds to spending a lot of money getting it from the US or a little cheaper in SA.
Can any one help please

Paul.
i think you will get most of the information while searching google.. I will send you some useful links about the stepper motors very soon
Reply With Quote
  #12  
Old Tue 16 July 2013, 14:50
paulus
Just call me: paul
 
jhb
South Africa
Thanks drew it will be most help full.
Reply With Quote
Reply

Register Options Profile Last 1 | 3 | 7 Days Search Today's Posts Mark Forums Read

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Stepper Motors firechief 70. Control Systems 4 Sat 14 May 2011 07:32
stepper motors andrewuk Motors & their mountings 18 Sun 31 October 2010 10:48
Stepper motor wire colours do not match supplier's info - how to figure them out hennie Motors & their mountings 19 Sun 14 September 2008 07:41
stepper motors what brand to use???? chopper Motors & their mountings 19 Sat 19 July 2008 12:42
Stepper motors giving trouble - Motors burnt while serving as ground for elec. fault Daya Troubleshooting 45 Mon 21 April 2008 02:05


All times are GMT -6. The time now is 15:56.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.