is going brushless popular?

[sweetdiesel]

Well there's a lot of difference actually. First of all, using a clutch, you are able to tune all that power that is produced by the brushless motor. You can tune with clutch shoes and springs just like you would with a nitro. Also, like someone else mentioned, it allows you to take advantage of the onboard brake system, which drastically reduces cogging and removes a lot of the strain that an 8th scale vehicle puts on the motor and ESC. On my Revo, it also allows me to use the front and rear brakes to tune brake bias.

Why do you need to tune the initial power delivery of an electric motor with a clutch when you can do that from the ESC and TX? Also, how does using mechanical brakes effect cogging when cogging is a product of using slotted magnets in the motor's construction and is generally "felt" upon acceleration?

 

[abadk9420]

I believe the word you are looking for is brake.

Yes BRAKE was the word I was looking for was just really tired last night, that is a pretty cool looking set up charlie, so is there a Y harness so you can send a signal to both the ESC and the brake servo? Also I can't say I have noticed any cogging with my 6.5 HV set up in my E Maxx are some brushless systems more prone to gogging then others?

 

[CharliesTheMan]

Sweetdiesel, you know a lot more stuff about these electric motors than I do. I don't have to worry about the cogging issue anyway with my sensored setup, but you'll have to talk to tekno, or someone more qualified than I am, about the rest. I haven't run mine yet, so I can't help a lot there. Rob has run his a pretty good bit, and he's going to be conducting tests with and without the clutch. Before I bought the kit, I was weary of running the clutch on an electric, but I talked to Rob and several other people, and the ones that had run with and without the clutch told me that they liked the feel of the clutch.

Also SD, I would really appreciate any input or criticism that you have, as I have learned a lot of what I know about electrics from reading your posts and threads. I hope I didn't come off as a know it all.

Yes BRAKE was the word I was looking for was just really tired last night, that is a pretty cool looking set up charlie, so is there a Y harness so you can send a signal to both the ESC and the brake servo? Also I can't say I have noticed any cogging with my 6.5 HV set up in my E Maxx are some brushless systems more prone to gogging then others?

Yes some systems are a lot more prone to cogging than others. The Novak systems are sensored, which means in laymans turns that the motor communicates with the ESC, and the ESC knows where the motor is and what it's doing at all times. Unsensored motors don't have that same communication, so apparenty they get (confused) sometimes. The sensored motors are generally a lot smoother. I have a Castle sidewinder, and when running it with LiPo I didn't experience and cogging that was noticable. However, people say that with other batteries the cogging is a lot more noticeable. Smaxxin and I had the same exact systems in our stadium truck, and he ran his with NiMH while waiting for his LiPo to come in. He said that he experienced a lot of cogging with the NiMH, and not much with the LiPo. I'm not knowledgeable enough about the way these systems communicate to explain what causes this, why it would be different with different batteries, and so on and so fourth. However, Sweetdiesel is VERY knowledgable and educated with brushed and brushless systems, and about every other aspect of RC, and I'm sure that he can explain it a lot better. He is one of the most educated members we have when it comes to electrics, and RC's.

Just in case someone wants to see the build thread, here is Rob's revo. It's one sweet rig. https://www.rcnitrotalk.com/forum/showthread.php?t=55150