Motor windings findings

[neurokinetik]

Unfortunately, I don't have numbers on a stock 180 motor, as I modded it almost as soon as I got it. It currently pulls 480mA when out of the car, but that is now with 15 turns removed. The other 180 motor (GPM Hi Speed Modified) only pulls 280mA.

All of my current draw measurements are in this thread...

http://www.tinyrc.com/forums/showthr...threadid=16023

[Deep Blue]

I have a -12 with some other mods, and I could just as well make a -15, but the amounts of variances from the way I may do a -15, to the way you do yours, are infinite.

Do you have any other motors (othat than the S1) that's in stock configuration?

[neurokinetik]

In the thread I posted, I have measurements for all of my hybrid and custom motors, as well as stock stage 1, stage 2, and two stock 180 motors. (I just picked up another Team Orion 180 today, and this time I measured it before I did anything with it.)

[Deep Blue]

2 Questions:

1: Do you have a link?

2: Do you list the voltage supplied?

[neurokinetik]

Originally posted by Deep Blue
2 Questions:

1: Do you have a link?

2: Do you list the voltage supplied?

http://www.tinyrc.com/forums/showthr...threadid=16023

I haven't been measuring the voltage supplied, as I only have one meter, and during testing, it is obviously being used for the current measurement.

Checking the voltage on the pack now, it is 5.3V.

[Deep Blue]

Thanks. I'll bounce the numbers around. There's got to be a formula somewhere.

Your reading at 5.3v for a 180 (wasn't specified weather it was an FF180 SH, FF180 PH, or FK180SH/ph) was 0.21A. My readings at 8.3v were 1.39-1.80A. I'm sure the voltage had some affect on the outcome...but a difference of 857% is supernatural. What I do know is that my FET's turned to Hiroshima when my motor's readings hit 2.71A on 8.4v. I've built some motors to 2.5A (with the method I used to get amperage) and they're still running within the cars to this day.

I test at or near 8.4v, because that's been my observed limit for voltage capacity on a stock PCB. I run all of the motors at the voltage limit, and configure them from that voltage, to that "2.70A" limit, rather than the other way around.

So far, the only remotely noticible pattern is my test voltage of 8.3-8.4 would be 830-840% of what your readings were at 5.3v

Ex:

1.80A/8.30 = 0.21A.

The problem with this is that this formula for the other motors is completely thrown out the window. Maybe the current formula has something to do with this.

[neurokinetik]

Back to windings...

Team Orion Elite Stock motor for Micro RS4: 55 turns of 30Ga.

The 180 motors are wound very strangely compared to a 130 due to the fact that the brushes are turned 90° on the endbell relative to the magnets.

[TypeZer0]

do you have any pictures of how the 180 motors were wound?

[neurokinetik]

I took a few. I'll post them later, but I'll explain now. It actually was pretty straightforward once I saw the pattern.

On a 130 motor, you solder the wire to the comm terminal, then start winding around the pole right next to the terminal. (as in the pic. Start with the cyan arrow, end with the red.)



On a 180 motor, you solder the wire, but you actually start winding on the pole that is exactly 180° from the comm terminal. When you finish winding that pole, the end of the winding will go straight down to the terminal in line with the pole you are winding.

[Shane_882002]

can any of u make a tutorial because i really wanna make my own custom motor and another thing are u guys selling the motor because i want to to get a faster motor and show the rpms and a pic of the motors your selling, thanks bye
________
Isuzu motors polska
________
DIGITAL VAPORIZER
________
Avandia classaction
________
NEXIUM SIDE EFFECT

[neurokinetik]

RPMs of all the motors will be known soon... I just picked up an oscilloscope off of EBay.

[SuPrBuGmAn]

Welp, I just picked up some wire from RadioShack, they just had a variety pack with three guages, 22, 26, and 30. The S2 armatures are wrapped with 30, so I opted to go with the 26 gauge wire(22 would probably be too thick to do much with).

So now I have a 20 turn motor with 26 guage wire and I'm concerned it may draw too much energy for the stock FETs. I don't have a voltage meter or anything to check on my own unfortunately.




So, for all your electronic/motor guru's, do any of you have any estimations on what this motor may draw? Would it be safe to throw in my stock FET'd Xmod?


Motor energy draw thread is locked, it would probably be better off there, but I can't reply now...

[neurokinetik]

It will be the quickest XMod ever...




...to go up in smoke... :lol:



That motor will probably draw 2A without a load on it. More than a Plasma Dash, which has more turns (27) of the same size wire. It will also have less torque than the Plasma Dash, which was already found to be too weak to get up to full speed when used in an XMod. Figure about a 2mph top speed if that.

[SuPrBuGmAn]

D'Oh.

Well thats rather unfortunate.

I had thought about rewinding the motor with 22 or 23 winds, I couldn't fit 25 initially, which is why I opted for 20. However, it seems as though it may still be a waste of time even then.

The wire came from a variety pack I bought from RS that came with 3 gauges, 22, 26, and 30. I suppose I'll just have to order some 28g wire from another source try again.


Anyway, thanks for the help.

I will be upgrading the FETs in some manner, probably with a 3x2 stack of IRF7389 FETs and the voltage regulator. I was just curious as to if I could plug that motor in as is...

[neurokinetik]

Another motor to add to the list:

Mini-Z Racer Z130-A-BB: 46 turns of 30Ga