Scorpion HK3026-1400kv rewind

[fusionsx00]

Picked up this motor in a trade, Perfect condition.

once the heat shrink came off I saw that a few wires were broken and the heatshrink did
fail between 2 leads. there was some fiberglass tubing but way up outside the motor.
bad job scorpion

Factory specs:
No. of Stator Arms ................................................ 12
No. of Magnet Poles .............................................. 10
Motor Wind ............................................ 6 Turn Delta
Motor Wire ..................... 24-Strand 0.25mm (30 AWG)
Motor Kv ........................................... 1400 RPM / Volt
No-Load Current (Io) ................... 3.86 Amps @ 6 volts
Motor Resistance (Rm) ............................. 0.010 Ohms
Max Continuous Current ............................... 80 Amps

the stator came off really easy with the freeze method, I counted 3+4
so really in scorpions terms it was 7 turn delta.

Im shooting for d-lrk y 1000ish kv, but I will test wind first. also the coating is perfect, but if it gets in the way of wire size vs turns I will opt to remove it.

[Jmann841]

Very nice! Is it just me or do those magnets look crazy thin. Are then recessed into the can?

[Bladecpnitro]

A turn is a turn! How does Scorpion count turns? I ran into the same thing on my 4020-1350. Its supposed to be 5 turns but turns out it was six.

[fusionsx00]

Originally Posted by Bladecpnitro

A turn is a turn! How does Scorpion count turns? I ran into the same think on my 4020-1350. Its supposed to be 5 turns but turns out it was six.

Scorpion counts winds for 2 teeth, so if you see 12 turn on scorpion specs
It could mean 6t on one tooth and 6t on the other. Or 5+7 or 4+8.

I count per single tooth,
Yeah scorpion is special

[Bladecpnitro]

This is a 500 motor correct? What size wire do you plan to test wind with?
Do you plan on run this in one of your birds?

[fusionsx00]

Yeah 500 size(425mm blades), i will fit max wire size
I have 20awg to 14awg to try, my guess is 17awg
It may go in a goblin 380, not 100% sure.

[fusionsx00]

first test wind 6t 2P-DLRK Y = 956kv

going to try 6+7 to get to 880kv

[Bladecpnitro]

Do you do the 1000V meg test on your winds man?

[fusionsx00]

Yeah, but only on final winds, just before i reassemble. With test winds I do a quick check with my fluke for shorts.

Ebay has the insulation testers for 50$ now

[ahahn]

Originally Posted by Jmann841

Very nice! Is it just me or do those magnets look crazy thin. Are then recessed into the can?

There is a thin positioning ring for the magnets (if you look closely) that is obscuring the magnet thickness.

[omerco]

Originally Posted by fusionsx00

Yeah, but only on final winds, just before i reassemble. With test winds I do a quick check with my fluke for shorts.

Ebay has the insulation testers for 50$ now

I did my quantum rewind while out of home and didn't have the megger. I managed to get a fluke so i tested with it, only to find out i have a short when it met the megger back home...

[Bladecpnitro]

Originally Posted by omerco

I did my quantum rewind while out of home and didn't have the megger. I managed to get a fluke so i tested with it, only to find out i have a short when it met the megger back home...

Were you able to repair the short or did you have to pull the wire out of that phase?

[omerco]

the short was on the corner between the wire and the stator - no repairing could be done there. pulled it out, added paper and re-coiled it. motor is kicking hard...

[fusionsx00]

Stator powedcoat removed, i also chamfer the edges. The plates edges are razor sharp so doing the chamfer is a lot of help to prevent any damage when winding. I will use 20mil nomex for top plates and 15mil for slots.

Next i will make the top plates and figure out the best (thickest) wire size

[fusionsx00]

Just finished the wind, passed inital 1000v test.

Nomex plates



First 2 teeth wound with 17awg, it will be 6t(5+1) 6t(4+2)

[prototype3a]

How did you strip the stator?

[fusionsx00]

This one i had my freind do a light sandblast, then 200 degree denatured alcohol in a cleaning tank for 20 minutes at his shop. He did 6 stators for me for a 12 pack

[fusionsx00]

motor turned out great, 988kv on yge lv90 at 12khz 6s

i am going to finish sealing up the stator , and permanatly attaching the hub. Really tempted to trying this on my x5 with 425mm blades. its the same motor I ran on my x4 a long time ago.

[fusionsx00]

The motor is ready for flight test. The windings came out to 58 grams with 17awg almost twice the weight of the stock wind. 18 awg would of looked a lot nicer but i really wanted to go with the largest wire possible.

[Bladecpnitro]

Looks great man~! Do you test it without fiberglass insulating the wires and adding bullet connectors?