RC-Monster Forums - Brushless MBX-5

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- - Brushless MBX-5 (https://www.rc-monster.com/forum/showthread.php?t=441)

I've been racing my electric Revo for a few months now and am having a blast. My second project is my brushless 1/8th scale buggy. I picked up a MBX-5 from ebay for $400 bucks and sold the nitro stuff off for $100.
My buddy helped me fab a chassis plate using the original as a template. Here are some pics of the maiden voyage...
http://home.earthlink.net/~j1138/evo/em0.jpg
http://home.earthlink.net/~j1138/evo/em1.jpg
http://home.earthlink.net/~j1138/evo/em2.jpg
http://home.earthlink.net/~j1138/evo/em3.jpg
http://home.earthlink.net/~j1138/evo/em4.jpg
http://home.earthlink.net/~j1138/evo/em5.jpg

Unfortunately I fried the controller on the day these pics were taken so I am going to re-fab a center diff mount and use a 62t center diff to lower the gearing.
The tricky part of this whole setup has been the gearing. The 13t pinion gear was taken off the primary gear shaft of an emaxx. I haven't found any 1mod pinion gears with 5mm bores smaller than 13t.

I'd appreciate if someone could point me in the right direction.

I should have the new mounts done in a week or so...

Cheers :cool:

Wow, cool conversion. Looks clean.
I would love to have something like that. If I would have a track here, a BL 1/8 buggy would be a must.

One thing I thought by looking at the pics: Imagine side-by-side packs, and then those slots in the chassis (e-maxx style). That would be cool.
But not to complain, just a thought.

Great work. Good luck with the gearing!

btw: that buggys structure looks awesome. I like those CF parts, and the chassis braces look very good. Gotta keep an eye on the ´bay;)

looks great bro real nice work.
phil

Nice work! I have a 5mm bore 12 tooth mod1 pinion, but it won't hold up to the steel spur gear. If you can find a plastic spur gear for the center diff, it would work very well, though.

Mike, what material is the pinion made out of??

One thing I must ask is that if the metal of the spur and pinion are the same, wouldn't the chances of it surviving be better?

The pinions are alloy steel, but not hardened. They work fine on plastic/delrin, but the hardened steel spur of a 1/8 buggy will eat them pretty quick. I think ideally you would want the pinion to be a harder material than the spur, as it gets 3-4 times more wear (12 pinion on a 46 spur - the pinion must turn 3.8 times to each one revolution on the spur, so it would stand to reason that it would wear out 3.8 times as fast).

I have to make room for new parts for my Revo so, unfortunately I have to say good bye to this buggy :(

If anyone is interested, PM me.

Just a re-cap, the chassis is custom made using the original chassis as a template. The motor mount is also custom made and solid/bulletproof.

Here's some recent pics of the MBX-5:
http://home.earthlink.net/~j1138/evo/mbx5_1.jpg
http://home.earthlink.net/~j1138/evo/mbx5_2.jpg
http://home.earthlink.net/~j1138/evo/mbx5_3.jpg
http://home.earthlink.net/~j1138/evo/mbx5_4.jpg
http://home.earthlink.net/~j1138/evo/mbx5_5.jpg
http://home.earthlink.net/~j1138/evo/mbx5_6.jpg

PM sent!

Too bad to see you have to part with this lovely piece of workmanship. Do you ever had it on the track?

Apparently you like the Revo better. But this MBX5 is pure eyecandy to me. I hope it finds a good home ;)

:) Hey guys, I thought you wanted to see other brushless converted MBX-5. Here is a place: http://www.offroad-cult.org/Special/.../Mugen_BL.htm. Hope you like it. And StarScream, say Hi to MegaTron for me;) .

Nice buggy!

What motor is it? I love the shiney blue. :D

Its the Plettenburg Bigmaxximum, I guess. Serum has the same motor, too.

It isn't the BigMaxximum (that has a built-on cooling fan). I think starscream said before that it is a sensored system (as can be verified by the extra wires from the motor).

I could not see any extra wires at all.

Nice looking conversion. I need to get my hyper 7 conversion project out and finish it.