Cutting a motor commutator & motor tweaks

[EddieO]

See that makes sense to me....7-12 degrees is what I have set motors at and people liked the performance, but I had a few flip out about it.....claiming its BAD for the motor in crawler. I don't think so.....if we can run 24 degrees with a 7 turn on carpet, a crawler can handle 7-12!

So from now on expect some timing in Team br00d motors!

And check out my new avatar! Thanks to BadTurtle very much for it.

Later EddieO

 

[Sokelobo]

Did you get your lathe new? have you dug into a small bench top mill too? ... Are the tolerances as tight as needed? Any suggestions and advice you can provide would be appreciated. Such as driving factors in selecting that lathe set up ... primarily used for ???

Does it have adequate speed control or the ability to link to a computer for milling ( if it can be upended and automated advancing x,y,z positions?)

 

[EddieO]

me?

I have a new CNC mill getting hooked up as we speak......its a Haas SuperMini Mill. Pretty much can make anything RC. I was gonna get a CNC lathe, but I would use it for operation, that I can really just have the metal supplier do for minimal cost.....so I skipped it. I do have other lathes an Emco and some big old thing......I am gonna get the emco running again so I can cut some trick arms, along with installing jimmy hats (comm lock ring).

I also have a little bench top cnc router that I am getting setup.....I got it on ebay for a great price and it looks like they have skyrocketed in price since I got mine.

Later EddieO

 

[RcBro]

Well Guys, This thread has inspired me to pick a lathe up for myself. I've always been a brushless running fool, but I've been having great performance and success with brushed motors in the berg. I picked up a Trinity tru-lathe tonight for a great price. Other then knowing I need a lathe i'm clueless for the most part on setting brushes etc.. Is there a cutting bible out there then get get me started?

 

[EddieO]

Big jims black book is on hobbytalk.com....or google. It has tons of tips and tricks....

Later EddieO

 

[EeePee]

And the link has been posted in this thread a couple times I think. :mrgreen:

 

[rock hard]

guys I did a search[timing a motor] but didnt find what I was after.
looking for a thread that covers timing in detail

 

[Rockcrawler]

And the link has been posted in this thread a couple times I think. :mrgreen:

Yeap. And I know someone that is ready to sell his CE Dyno and Power supply.:mrgreen:

 

[RcBro]

Thank you

 

[EeePee]

guys I did a search[timing a motor] but didnt find what I was after.
looking for a thread that covers timing in detail

http://www.misbehavin-rc.com/pit-lane/motor-timing/g-motor-timing.asp

 

[rock hard]

thanks"thumbsup"

 

[rock hard]

hey eddio,searching for a timing jig and team brood showed up.

you got a line on a jig,bmw I think it was?
and is it compatible with any sized motor,or just 540's?

 

[MadForce]

After reading through all this thread I decided to unearth the old Hudy lathe. The last thing I remember cutting was some weird speed400 motors out of a heli.
I could never imagine crawler motors took so much punishment.
Like everyone else, I started cutting every available comm. Strange thing is that all 5 crapegys I have had truer comms than a couple 19T V12 LRPs I had in the box!
Might have to look up the rest of the tools.

 

[EddieO]

I have timing jigs, they are 540 only, but I think a 550 would fit, cause its really just longer.....never tried.

When the website is up, I will post links to all the cool tools I still have available for motors...

Later EddieO

 

[EddieO]

Forgot to mention, the first two EddieO built motors of 2010 are up for charity auction in the Electronics Vendor section.....man up and bid!

Later EddieO

 

[EddieO]

Since I posted it in my thread, I figured I would post it here. The can is finished.....you can't really see it all in the pic. The endbell is still in the early stages....but getting closer.

We are calling this motor the Stubby....

Later EddieO

 

[EeePee]

That's sweet. Looks like it might offer some protection for the MOA axle guys.

Here's a couple quick pics of the newest 35 turn motor to enter my home. Team Br00d. :mrgreen:

35 turn wound with 21 awg wire. :twisted:

Ran it in the Losi for a few (literally) and let me say this, this thing has some serious kick!

 

[EddieO]

All that time putting it together and he takes it apart!

Hmm, I put those springs on for you? I must of mixed up your order!:lmao:

21 AWG wire is going to probably be our norm now.....after I sell through the rest of the 21.5....

I'd love to take credit for the actual winding, but I can't wind.....Garrett winds a lot of stuff, but those were wound by my other guy....who I can't name in public! I did everything else though! My goal is to actually learn to wind.....my wrists just can't hold the wire tight enough.

21 AWG will make more power, more RPM, more Torque.....only down side really is its less efficient.....not by very much though.


Later EddieO

 

[EeePee]

:lmao:

I had to see the goods man! Tell that secret wind guy of yours he does a great job.

You said you had some "nifty" springs for me. :mrgreen:

Little loss of efficiency seems more than acceptable for more of everything else.

First impressions are typically what we go on, and I believe this 35 turn motor sets the benchmark at this point. The ingredient list makes me want it all over again. Four magnet can, laydown brushes, big comm, big wire, wound perfectly, very nicely shimmed. Awesome motor. "thumbsup"

 

[EddieO]

$10 says I can beat it?;-)

Later EddieO