View Full Version : Breaking in electric motors, tips, tricks, secrets.
Arcocustom
07-13-2009, 12:20 AM
Depending on the type of motor, there are different ways to break in and tweak them. Here is a link that sheds light on the "secrets" that the pros have used for decades.
http://www.rccartips.com/rc-electric-motor-tuning-guide.htm
Arcocustom
07-13-2009, 12:18 PM
DO NOT water dip an 05 car motor with removable brushes as this will wear the brushes away far to rapidly.* Water dipping is pretty much reserved for SEALED ENDBELL motors (those with non replaceable brushes) since the manufacturer will use very hard brushes in those motors (to provide long life).* If you don't dip them it will take a long*time for them to break-in and achieve the full performance potential of the motor.
The dipping method involves dipping a motor in a jar filled with water. The fluid around the armature causes a high load to be placed on the motor, and high amps to flow, plus it provides a mild abrasive action which causes the brushes to seat quickly.* Run the motor on a 4 CELL PACK for a few minutes or until you see the water start to change color from the brushes wearing.* I know you might be thinking water and electronics don't mix.* Water is an insulator and although we are not dealing with pure water, the water we use has a very high resistance.* The real problem with using water is CORROSION, so make sure you thoroughly dry the motor when you are done.* You can use WD-40 which displaces water, then lube the bushings.
Brush Break-in
The first part of a motor to break in is the brush/commutator interface. As the commutator is not a replaceable part we want to extended is life as much as possible. To do this you want to make the brushes conform to the shape of the commutator but in so doing generate minimal wear on the commutator.
For standard 05s first adjust the timing to zero and then run on 2 to 4 cells for a short time period until the full brush face is conformed to the comm. This may take just a few seconds with serrated brushes to five minutes or more with some hard brushes. Don't use comm drops during this time as they act as a lubricant and will extend the break-in period, not what we want to do.
Arcocustom
07-13-2009, 09:00 PM
Need a better drag brake and more start-up torque on your open endbell 540 motor?
TRINITY Heavy Tension Spring #RC4396 For endbells with overhead left and a right wound springs.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXJX50&P=7
TRINITY Extra Heavy Tension Spring #RC4036 For endbells with the same wound spring on both positive and negative.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXTP16&P=M
**NOTE** Using heavy springs will increase torque and give you a great drag brake, but at a cost. Your standard brushes will wear quicker. Using harder brushes with a high silver content will give you longer wear and even more power, but wear the commutator faster. A full brush will give you more torque, less RPMs, and wear the comm. faster. A cut brush will give you more RPMs, less torque, and wear the comm. less. When using hard brushes, use ones with a serrated face for easier break-in.
Arcocustom
07-22-2009, 07:13 AM
Need more torque?
Trinity Torque Sleeve
http://farm3.static.flickr.com/2473/3745562025_201d68e571_o_d.jpg
This is the Torque Sleeve by Trinity for 540 Sized Motors.
Special Magnetic Shielding Material
Traps magnetic flux
Creates more torque and less RPM
Manufacturer Stock#TRI13007
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