Question about Neu motors

[sikeston34m]

http://www.rc-monster.com/forum/show...t=15900&page=2

page 2 of this thread shows 2 different Neu motors. They are both wye wound.

The one on the left is a 1515, the one on the right is a 1512.

Evidently, with the 1515, they were just about out of room inside the can to complete the wind. So they epoxied, compressed and baked the winding to retain that shape.

These are both Wye wound. See the white collar covering the termination point?

A Delta wind won't have this.

[lincpimp]

Originally Posted by sikeston34m

http://www.rc-monster.com/forum/show...t=15900&page=2

page 2 of this thread shows 2 different Neu motors. They are both wye wound.

The one on the left is a 1515, the one on the right is a 1512.

Evidently, with the 1515, they were just about out of room inside the can to complete the wind. So they epoxied, compressed and baked the winding to retain that shape.

These are both Wye wound. See the white collar covering the termination point?

A Delta wind won't have this.

So do you think either of those could be changed to a delta termination? Of would it be too difficult? Looking at how the windings are compressed it looks like a difficult job???

[sikeston34m]

Originally Posted by lincpimp

So do you think either of those could be changed to a delta termination? Of would it be too difficult? Looking at how the windings are compressed it looks like a difficult job???

To change it, you have to get the iron core out of the motor can intact.

Once you have the core removed, all the old winding is removed and discarded.

If the coating on the laminations is intact, you're lucky. If it isn't, it needs to be recoated.

This coating is there to prevent tearing the enamel on the magnet wire as you pull it and do the winding. It pays to eliminate all the sharp edges. Any short phase to phase, or phase to core, and you're not so lucky.

Any shorts means starting over.

[lincpimp]

Originally Posted by sikeston34m

To change it, you have to get the iron core out of the motor can intact.

Once you have the core removed, all the old winding is removed and discarded.

If the coating on the laminations is intact, you're lucky. If it isn't, it needs to be recoated.

This coating is there to prevent tearing the enamel on the magnet wire as you pull it and do the winding. It pays to eliminate all the sharp edges. Any short phase to phase, or phase to core, and you're not so lucky.

Any shorts means starting over.

Ok, so It does not just invole seperating the atachement of the 3 phases and wiring them to the respective output wires? I have no idea what I am talking about, but I guess you will have a better idea after you get your grimy little hands on that cooked pletty...

[sikeston34m]

Originally Posted by lincpimp

Ok, so It does not just invole seperating the atachement of the 3 phases and wiring them to the respective output wires? I have no idea what I am talking about, but I guess you will have a better idea after you get your grimy little hands on that cooked pletty...

No it doesnt. Wires come in from both sides and meet at that splice.

This really isn't a good spot to make splices. It's so limited on space and the coating on surrounding wires can get melted when doing a solder splice. Not good.

I plan on taking that Pletty all the way apart like I described. Carefully unwinding it, while making a diagram of exactly how it's wound.

We must do surgery. LOL

[lincpimp]

Originally Posted by sikeston34m

No it doesnt. Wires come in from both sides and meet at that splice.

This really isn't a good spot to make splices. It's so limited on space and the coating on surrounding wires can get melted when doing a solder splice. Not good.

I plan on taking that Pletty all the way apart like I described. Carefully unwinding it, while making a diagram of exactly how it's wound.

We must do surgery. LOL

Sounds good, I have an angle on some neu motors, just way too low kv for car use. I guess we will see how your winding goes. I should be able to get the core out, I have mad skilz with disassembly...

[sikeston34m]

Originally Posted by lincpimp

Sounds good, I have an angle on some neu motors, just way too low kv for car use. I guess we will see how your winding goes. I should be able to get the core out, I have mad skilz with disassembly...

Well be sure to pass along any tips that you come up with.

Some of the Epoxy they use will only let go if heated up to around 500 degrees. I'm hoping this isn't the case with the Pletty. Maybe some sort of solvent.

Every glue has a solvent that will make it let go, but finding the correct one is the challenge.

What kv are you talking on the Neu motors?