Direct Drive to Diff E Revo Build - Page 16 - RC-Monster Forums

BL_RV0 · 12.03.2007, 10:35 AM

get a vid when shes done!

sikeston34m · 12.03.2007, 07:21 PM

Well the custom wind from the manufacturer is pretty much out of the picture. I can buy two regular motors for what they want for that.

I have a second 4130/20 here that I can use to experiment with different windings. But how do I get this stator off the bearing holder?

Hmmm, I wonder if I could trim the stationary endbell down to allow enough room to do the winding and make the terminations?

I was thinking about modifying a pair of needle nose pliers to aid me in this. Grind the teeth off the jaws, then wrap them with black tape. I know I can't tear the insulation on the winding wire as this will create shorts.

johnrobholmes · 12.03.2007, 09:24 PM

Get some kits from Lucien. Although he doesn't have any 40 series kits yet, I know I could get just the stators and bearing tubes from him. Then you could just swap out the bell from stator to stator and save some cash on buying magnets. You would need to use a specialized bearing puller to get the stator off the bearing tube otherwise.

sikeston34m · 12.03.2007, 09:35 PM

Quote:

Originally Posted by johnrobholmes

Get some kits from Lucien. Although he doesn't have any 40 series kits yet, I know I could get just the stators and bearing tubes from him. Then you could just swap out the bell from stator to stator and save some cash on buying magnets. You would need to use a specialized bearing puller to get the stator off the bearing tube otherwise.

I just ordered a 500 foot roll of 22 Ga winding wire that's rated at 200C.

With this first round, I'm gonna try to rewind this second 4130 that I have. I would rather stick with AXI to start with, because I don't know how hot this is going to run. The cooling fan will help with that since it moves alot of air.

I'm thinking about a 6 or 7 turn wye termination with as many strands of 22Ga that will fit. Once wound, I can do the spin voltage test to get a close approximation of the kv for the wind.

I intend to wind it just like this.

Any thoughts?

sikeston34m · 12.03.2007, 09:40 PM

Check out this Wye Wind on a Scorpion Motor.

It's in German, I wish I knew what they were saying about it.

http://www.powercroco.de/12N14P3032scorpionalt.html

johnrobholmes · 12.03.2007, 09:42 PM

If you have 14 magnets you have to stick with LRK or dLRK. http://www.southernsoaringclub.org.za/

Where did you find the wire? I need some with a coating I can count on.

sikeston34m · 12.03.2007, 09:49 PM

Quote:

Originally Posted by johnrobholmes

If you have 14 magnets you have to stick with LRK or dLRK. http://www.southernsoaringclub.org.za/

Where did you find the wire? I need some with a coating I can count on.

Is there a different magnet arrangement for this 12 pole wind? Thanks for the website, I'll check it out.

I got a 500ft spool of 200C from this Ebay seller. Looks like the last 500ft spool they had listed. I'm sure if you drop them a line, they have more.

http://search.ebay.com/_W0QQsassZswordandtreasure

sikeston34m · 12.04.2007, 12:42 AM

OK, Now I THINK I understand!

The winding pattern I displayed earlier is for a 12N16P configuration. 16 magnets.

I discovered this after ALOT of digging and research. Here's the wind that I believe I need to go with. Please correct me if I'm wrong.

The Wye termination will connect the ends marked "ende"

I also did some reading through a translator about the scorpion 3032 that this german guy wound. He has test results displayed there.

It is an 8 turn with a wye connection. 550kv. I'm sure that is a torque monster.

johnrobholmes · 12.04.2007, 01:04 AM

Yeah, that is how I am doing mine. If you have more room between the stator and back plate of the can LRK winding works, but most 12 slot hobby motors are meant to be wound dLRK like that pic shows. The scorpion motors can't be wound LRK, not enough room lengthwise.

The powercroco site is awesome, I wish my german was better.

sikeston34m · 12.04.2007, 01:12 AM

I wonder what size wire he is using. He does it all with only one strand!

sikeston34m · 12.04.2007, 08:56 AM

http://babelfish.altavista.com/ is a good translator.

Just copy and post the PowerCroco url to it and you can navigate the website in English.

Pretty cool

sikeston34m · 12.04.2007, 09:02 AM

I thought something looked funny about the german guys wind in thinking it was a wye termination.

After reading some more, it's a Delta winding. He just made the connection across the stator by soldering.

sikeston34m · 12.07.2007, 12:04 AM

I'm waiting on my 200C 22Ga. Winding Wire to come in, looks like it's going to be early part of next week. *sigh* The AXI 4130 is just sitting here waiting.

In the meantime, I have spotted a couple of motors to practice winding on. They are outrunner motors that I've used with the E maxx.

One is the 650kv that I do the E maxx outrunner conversion with. The other is a discontinued Lightning 600 Helicopter motor that I was running an E maxx with.

I just unwound a Lightning 600 stator. It was wound Delta DLRK style with 20 strands at 5 turns per pole.

The stator on this motor is 35mm in diameter and 30mm long. Each pole was really full wound this way. It's a little puzzling to me because this motor was rated at 715kv. Being a 5 turn motor, It seems like the kv rating would have been much higher than this.

@JohnRob - Did you get your wire ordered?

johnrobholmes · 12.07.2007, 02:43 PM

I haven't ordered wire yet, and I still have one last phase to wind on my 3032. I fell on my head monday so I can't really do anything if front of me for very long periods of time yet.

the kv on that 3530 seems about right. 5 turn delta, big and long stator. The bigger or longer it gets the slower the motor will spin with any given wind count and termination.

sikeston34m · 12.07.2007, 03:17 PM

Quote:

Originally Posted by johnrobholmes

I haven't ordered wire yet, and I still have one last phase to wind on my 3032. I fell on my head monday so I can't really do anything if front of me for very long periods of time yet.

the kv on that 3530 seems about right. 5 turn delta, big and long stator. The bigger or longer it gets the slower the motor will spin with any given wind count and termination.

OMG, Are you ok? I hope so.

With the 4130, I'm thinking about a 4 turn Wye with the 22Ga. wire. I'm gonna practice wind the 3530 and try it out in the E maxx a couple of times first. Get some trial and error testing in so I can make a more educated guess at knowing what the 4130 will do with what wind beforehand.

The flip side to the bigger and longer the stator is, the slower it will go, is the more torque it will have.

The mail lady came today bearing gifts. The Revo Will get the ESC and the BEC, the fan motor cooler is for a Electrifly Ammo 36-56-2600kv inrunner motor that I want to try on the E maxx. I know it's gonna run hot with 20/76 gearing on 4S lipo, but the fan should help.