I have been thinking about building a motor with two separate magnetic fields and 2 pairs of brushes in an X configuration, should be possible with narrow neodym magnets and a 5 or 7 pole arm...
Now I found this, but I have problems understanding the benefits, except for the possibility of cooler brushes and comm....
http://www.modelency...=143&PageNum=44
Car Model Nov 1966
Did anyone try to build one of these? ...or see one?
The dual comm hop-up - anyone try it?
Started by
Jocke P
, Apr 29 2014 04:00 AM
2 replies to this topic
#1
Jocke P
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Posted 29 April 2014 - 04:00 AM
Joakim Pegers
#2
don.siegel
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Posted 29 April 2014 - 05:47 AM
No, but why not go all the way Jocke?
The original thread was here:
http://slotblog.net/...e-attic-item-1/
I seem to have changed directories for the article from MC&T, but can repost if needed...
Don
#3
Jocke P
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Posted 29 April 2014 - 06:23 AM
Yes, I have seen those, Roar has a couple IRL....
I have built 1:32 cars with double motors and 4wd, and I have the Russkit Black Widow with Twin 22´s, none of these have really impressed me performancewise, probably because of the added weight counterbalancing the increase in power.
A twin arm is imho just another way of doing the same.
In my meandering mind, the only real way to get more performance is to make the motor do twice the amount of work without adding the Heavy hardware.
In reality this was achieved with hotter winds and stronger magnets as performance developed, but this also has its weak points.
Anyways, the X configuration with double brush/magnet would probably also have twice the heat buildup if each spool was engaged twice in every turnover cycle.
I have built 1:32 cars with double motors and 4wd, and I have the Russkit Black Widow with Twin 22´s, none of these have really impressed me performancewise, probably because of the added weight counterbalancing the increase in power.
A twin arm is imho just another way of doing the same.
In my meandering mind, the only real way to get more performance is to make the motor do twice the amount of work without adding the Heavy hardware.
In reality this was achieved with hotter winds and stronger magnets as performance developed, but this also has its weak points.
Anyways, the X configuration with double brush/magnet would probably also have twice the heat buildup if each spool was engaged twice in every turnover cycle.
Joakim Pegers
