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-   -   Soldering Brushless motor wires (http://mini-zracer.com/forums/showthread.php?t=41315)

TPDazzle 2018.10.08 12:25 PM

Soldering Brushless motor wires
 
I am totally new to brushless. I just got a PN 5500 v2 motor. I understand that there are 3 wires and which one goes where.

My question is: Do I solder them to the 3 little u-shaped bracket on the side of the can? It is mostly green chip-board material and it doesn't look like there is much metal there. Do I have to take the end bell off? That doesn't seem right. Seems like a stupid question, but I thought I'd better ask before I screw it up.

EMU 2018.10.08 02:20 PM

1 Attachment(s)
You solder to the 3 tabs on the PCB. Don't take the endbell off.

Just be sure that the solder doesn't bridge the tabs. Tin the tabs lightly, with good tin on the wire.

http://mini-zracer.com/forums/attach...1&d=1539026396

SuperFly 2018.10.08 03:44 PM

What EMU said. Here's another picture for reference:

http://www.grymttr.com/carpix/962/IMG_8961.png

One thing to remember: you might get better results and a more organized rear end if you don't make all your wires the same length. See my pic for example of what I mean.

EMU 2018.10.08 03:47 PM

Looking at your pic, I should clean up my soldering a little ;)

On VE Pro boards, I reuse their wires and just cut off the bullet connectors. On the standard VE with rainbow wires I swap out the wires entirely. The plastic used for the rainbow wires is stiff.

TPDazzle 2018.10.08 05:36 PM

Thanks guys,! That's what I needed and what I would have done if left to my own devices. Thank you! Superfly, that looks exactly like my motor. I do have a VE pro board. I am planning on cutting off the bullet connectors. Thanks for the tip on the wire lengths, I would have kept them the same length.

SuperFly 2018.10.08 05:59 PM

Quote:

Originally Posted by TPDazzle (Post 466353)
Thanks guys,! That's what I needed and what I would have done if left to my own devices. Thank you! Superfly, that looks exactly like my motor. I do have a VE pro board. I am planning on cutting off the bullet connectors. Thanks for the tip on the wire lengths, I would have kept them the same length.

I went through the trouble of ordering fancy micro 2mm bullet connectors and did a full set of color-coded, heat-shrinked wires exactly the same as stock. But the more I thought about it, the more I realized how much I hate that bundle of wires I have to zip-tie to the motor mount in a stock setup, and opted for a much more minimal setup. It's fine because once I put a motor in a car, I rarely change it out. I just couldn't see the reason to have that much wire back there. Just be sure to have your disc damper in place as you plan and measure your wires. I got some 22 ga. really soft silicone wire, and tried to sculpt a wire path that was as short as possible without interfering with the damper or otherwise stressing or binding the suspension.

TPDazzle 2019.08.20 11:04 PM

Alright guys, new motor, new problem. I just got a PN 3500 stock motor to my brushless car HFAY legal with the motor rule changes. I disconnected my 5500 one wire at a time and soldered on the new motor, and it runs backwards! I double checked the VEpro board, and everything matches up. I tried removing all the solder with some solder braid in case I bridged a tab, and then I resoldered it after triple checking that the motor matches the board, and it still runs backwards. I reversed the throttle on my EX6r radio and it runs forward, but goes slow and runs in reverse much faster, so that didn't work out. Any ideas about what I screwed up?http://https://photos.app.goo.gl/tCAi6DekeUxnDAVb6


https://photos.app.goo.gl/tCAi6DekeUxnDAVb6e Also, I seem to struggle with getting my photos to appear in my message, is their a tutorial on that somewhere? Thanks for the help!

EMU 2019.08.21 12:28 AM

Swap any two wires and the motor will reverse direction. The PN motor naturally rotates the opposite direction. Many will swap A and C, but A B or B C work the same.

As for hot linking images, place brackets around IMG before the link, and brackets around /IMG after, so it would look like (img) link(/img) with brackets instead of parentheses. If I would have written with brackets, it would be hidden.

https://photos.google.com/share/AF1Q...NVYjMwOGY3YkdR

The other option is to upload the image directly to the forum, which is how I do it. Then hot link to embed it into the post where I want it to be.


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