- Joined
- Sep 26, 2013
- Messages
- 408
There are three basic types of dc motors: (1) Series motors, (2) shunt motors, and (3) compound motors. They differ largely in the method in which their field and armature coils are connected.
Here's a link to what seems like a good summation of DC motors for those like myself that want to learn more about them: http://avstop.com/ac/apgeneral/typesofdcmotors.html
Another link to Shars extolling the type their DC compound powered feeds use(Im including this just because I saw it recently, probably not a great source for info !)
http://www.shars.com/products/view/20355/APX150_Milling_Machine_Power_Feed_X_Traverse_150_Lbs
Power and speed graphs:
from shars
![01b3691d-a41f-4bec-af65-9eec0a9eebd3_zpshbmcuf5k.png 01b3691d-a41f-4bec-af65-9eec0a9eebd3_zpshbmcuf5k.png](https://www.hobby-machinist.com/data/attachments/140/140200-9304ef7eac51955d380500c87eb7660f.jpg)
from the first link, looks like shars in the above graph kinda skewed the data in marketing
![43e0162f-9ebe-41f3-ac07-21d86abf1d7b_zpspka74qi5.png 43e0162f-9ebe-41f3-ac07-21d86abf1d7b_zpspka74qi5.png](https://www.hobby-machinist.com/data/attachments/140/140201-e9d60ec45225fdff2a7b9cf061f06841.jpg)
Theses motors are available on ebay from several venders, they don't say what type they are but they do have brushes
![9dc844c7-7196-4577-bc0f-8c2f9bf5db16_zpsf6rx8ti6.png 9dc844c7-7196-4577-bc0f-8c2f9bf5db16_zpsf6rx8ti6.png](https://www.hobby-machinist.com/data/attachments/140/140202-070cd66a5d831992f6ad8bca6925df45.jpg)
http://www.ebay.com/itm/DC-MOTOR-1-2HP-56C-90V-1750RPM-TEFC-PERMANENT-MAGNET-/251581341980
I'm interested in using a DC motor and pwm(power wave modulator for the unenlightened like myself) on my small Clausing mill(for variable speed control and greater torque than an AC motor) and I would appreciate any thoughts/ideas from those having experience/knowledge of DC motors in this application.
thanks, Brian
Here's a link to what seems like a good summation of DC motors for those like myself that want to learn more about them: http://avstop.com/ac/apgeneral/typesofdcmotors.html
Another link to Shars extolling the type their DC compound powered feeds use(Im including this just because I saw it recently, probably not a great source for info !)
http://www.shars.com/products/view/20355/APX150_Milling_Machine_Power_Feed_X_Traverse_150_Lbs
Power and speed graphs:
from shars
![01b3691d-a41f-4bec-af65-9eec0a9eebd3_zpshbmcuf5k.png 01b3691d-a41f-4bec-af65-9eec0a9eebd3_zpshbmcuf5k.png](https://www.hobby-machinist.com/data/attachments/140/140200-9304ef7eac51955d380500c87eb7660f.jpg)
from the first link, looks like shars in the above graph kinda skewed the data in marketing
![43e0162f-9ebe-41f3-ac07-21d86abf1d7b_zpspka74qi5.png 43e0162f-9ebe-41f3-ac07-21d86abf1d7b_zpspka74qi5.png](https://www.hobby-machinist.com/data/attachments/140/140201-e9d60ec45225fdff2a7b9cf061f06841.jpg)
Theses motors are available on ebay from several venders, they don't say what type they are but they do have brushes
![9dc844c7-7196-4577-bc0f-8c2f9bf5db16_zpsf6rx8ti6.png 9dc844c7-7196-4577-bc0f-8c2f9bf5db16_zpsf6rx8ti6.png](https://www.hobby-machinist.com/data/attachments/140/140202-070cd66a5d831992f6ad8bca6925df45.jpg)
http://www.ebay.com/itm/DC-MOTOR-1-2HP-56C-90V-1750RPM-TEFC-PERMANENT-MAGNET-/251581341980
I'm interested in using a DC motor and pwm(power wave modulator for the unenlightened like myself) on my small Clausing mill(for variable speed control and greater torque than an AC motor) and I would appreciate any thoughts/ideas from those having experience/knowledge of DC motors in this application.
thanks, Brian
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