Rummy's E-maxx
 

Started life as a stock E-maxx and just started morphing into these thing. Some of the remarks you hear while on the driver's stand are pretty funny.

Truck (updated 09-18-08 )

- Custom Extended chassis and braces (by me)
- RPM upper and lower arms
- RPM towers
- Hot Bodies LSP RTR shocks (will be going to losi shocks)
- ACNCM aluminum bulks
- UE 6mm Front CVDs with UE 17mm hexes
- Revo 3.3 Shafts out back
- Maximizer 17mm aluminum maxx adapters out back
- Ofna 1/2" offset white rims
- Pro Line Crime Fighter MT tires
- Tekno Adjustable wing mount (needs changed)
- Mugen MBX5T white wing
- Pro Line Steering bellcrank kit
- RPM True Track rear suspension
- RRP HD Slipper

Electronics (updated 09-18-08 )

- Mamba Monster Max V1
- Feigao 10XL with 22t 5mm pinion
- RC-Monster Heatsink motor clamp
- 6S1P A123 pack (6S2P for mains)
- Spekky Receiver (Futaba 3PK)
- Futaba 3305 Steering servo
- Traxxas 2015 2 speed servo (will be locked out soon)

Most recent video

E-maxx parking lot run and jumps

Most recent photos

http://i42.photobucket.com/albums/e3...obby/emaxx.jpg

Before the LSP shocks I ran power strokes.

http://i42.photobucket.com/albums/e3...DSCF3278sm.jpg

http://i42.photobucket.com/albums/e3...DSCF3266sm.jpg

http://i42.photobucket.com/albums/e3...DSCF4201sm.jpg

NIce nick, what speed is that geared for?

Oh man that truck deserves LiPo. Does it have a mix of 1/8th buggy shocks AND PowerStrokes?

What the hell??? Is that beer or nitro fuel in the background on picture 3? We'll give you the break on this one and say it's beer. Looks nice how about a better picture of the custom chassis you made?

GPS said 39mph with the 22/66 gearing. I like it right there for the track I run.

Well I started out running powerstrokes since those were the hot ticket for a while. They needed some tuning though and were hard to get parts for. So I decided to try some shocks I had laying around for my LSP. I liked them better and they were a lot more tunable. I'm going to go to losi 100mm shocks because the LSP shocks are to long and allow to much drop out.

Let's just say that picture was taken before I seen "the light" :diablo:

Here's the CAD drawings I did. This was just for a rough proto so it only has the essentials milled out. I have been meaning to cut another chassis and make it look nicer and reduce the weight.

http://i42.photobucket.com/albums/e3.../underside.jpg

http://i42.photobucket.com/albums/e3...gs/topside.jpg

http://i42.photobucket.com/albums/e3...DSCF2465sm.jpg

My first chassis mock ups

http://i42.photobucket.com/albums/e3...DSCF2513sm.jpg

http://i42.photobucket.com/albums/e3...DSCF2515sm.jpg

That's great. That is one of the parts of this hobby I really enjoy. There's a lot that can be done on your own if you have the desire to try and make it. First time's usually the prototype and doesn't always work out for me. Oh by the way I got a bottle like that around my place too. I try to keep it out of the pictures though. :whistle: Keep up the good work. I like the build you got.

Top work, one of the best Emaxx's i have seen

I really like those CAD drawings, can I ask what you do to pay for your hobby?

I am hoping that we end up getting a CNC at work soon, so I can have a play at making some custom parts.

Nice work with the machining.

Actually, I don't even have it anymore. My LSP truggy was the last nitro I had and I'm making the jump to brushless on that rig also. I posted a build thread on that too. E-LSP I do however own a Baja. So not quit brushless only for me. Close though!

Well I'm an engineer (not a fancy high paying one like structural or anything) I design displays for companies. It's not a real high paying job but it pays the bills and let's me play a little. Most (%95) of my RC stuff comes from custom work I do for RCs. So between trading and selling the custom stuff I do I can usually make out pretty good on deals and fund most projects. Plus I have an understanding wife. (most of the time!) :lol: I'm not sure what the advertising rules are like on this site or I'd post a link to my site.

As for the CAD and machining. I don't do the machining myself. I have a guy that owns a machine shop local to me that I've worked with for a while now. I do all the CAD work and then just give him drawings and he can cut right from them. If I have a CNC machine and figured out how to use it I don't think I'd EVER leave that thing.

I design displays for companies.

As for the CAD and machining. I don't do the machining myself. I have a guy that owns a machine shop local to me that I've worked with for a while now. I do all the CAD work and then just give him drawings and he can cut right from them. If I have a CNC machine and figured out how to use it I don't think I'd EVER leave that thing.[/QUOTE]

Which displays? LED boards and such?

Any chance of getting that CAD file from you? (for personal use only!)

Here's the companies site.

www.downingretail.com

PM coming your way

I had an interesting thought, what about chopping up that prototype chassis and making a lower battery tray for it, much like the old RaceBomb chassis. That would lower the CoG alot, though battery layout would have to alter maybe. A123 or lipo, its all good though aint it... :yes:

I did start designing a chassis that did what you're talking about Neil. replaced the bottom skids with a chassis plate and used an upper deck where the chassis originally mounted and used a center diff. I just never really proceeded with it because I already have a truggy.

http://i42.photobucket.com/albums/e3...maxxtruggy.jpg

Ooh, thats pretty gnarly, I like.

have you thought about getting the 3905 tranny and putting it in there with the revo cast mount the put the motor down low and toward the front up by the servo.... just something i was thinking while looking at your pics..... good to see people rocking the emaxx in a world of revos.

nice video also, what kinda runtime you getting out of 6s 1p A123 cells on the 10xl

Haven't thought about that tranny. Might have to look into it. It's a single speed right? Do you know if it will work with the RRP HD slipper setup I have on my maxx tranny?

I use about 1500mah in a 5 minute qualifier. Luckily we only have 10 minute mains so I can get through them with a 6S2P

Yeah, the 3905 tranny comes locked into 2nd gear as standard, but it wont work with the RR slipper setup saddly- uses a round input shaft and a pin to hold the slipper plates in place, rather than a hex shaped shaft.

That is a beautiful E-Maxx, mine is still in progress.

Thanks Crazy,

I picked up a Zippy 6S 5000mah 20C-30C pack to replace my 6S1P A123. I liked the A123 but wasn't a fan of the run time, especially for racing.

http://i42.photobucket.com/albums/e3...y/DSCF5332.jpg

First initial test run was good. Motor warmed up but nothing bad. Second run didn't go so well. Had a light dusting of snow so after about 8-9 minutes of wheel spin and drifting I got a lot of glitching and no go. Tore the motor down to find this.

http://i42.photobucket.com/albums/e3...r/DSCF5425.jpg

Looks like the magnet let loose and was flopping around in inside

http://i42.photobucket.com/albums/e3...r/DSCF5424.jpg

I think I'm going to give one of those 70mm or 80mm medusas a try and definitely gear down a bit. It was EXTREMELY fast geared 22/66 and obviously over worked the motor :lol:

80mm medusa FTW!!! :yes:

Those make for good science project magnets, Or they can hold a small child to the refrigerator.

Lol, indeed- even my de-magged hobbycity 9XL is pretty dang strong, makes a beautiful fridge magnet. :yes:

Nick, nice E-Maxx man. I am still waiting for my 70mm Medusa for my eLSP-R and bashing with my maxx for the time being. Very nice work you do.

I'm jealous man. I had an LSP I was converting but never got around to finishing and needed the cash for other projects. Ended up practically giving it away. I was happy it went to a good home where it'll get finished the right way though :mdr:

Yeah, I remember from BYT. Looks like this one will keep you happy for the time being. :intello:

Seen some of the 70mm Medusas running and I'm impressed. As soon as I can get a hold of an 80mm and figure out how to get a center diff in this truck I'll be back to running.

I am with mine! I am running a 36-70-2000 on 5S and it's a beast! I might end up stuffing that on my E-Maxx with 4S and get a 36-70-1600 for the eLSP-R to be run on 6S... IDK. The choices are driving me nuts.

Yeh lots of options out there for sure!

Man that is a awesome looking truck! I love the custom chassis. Someday I would like to convert my old t-maxx to a emaxx. Would it be possible to get that .dwg from you? Keep up the great work!

I haven't been on the site for a while. Was just lured back while searching for beefing up a maxx trans. Thought I'd update this thread to say this E-maxx was sold......

I have a baby on the way next month and thinned out a lot of my RC collection. Still have a few left but I never got around to getting a new motor to keep this E-maxx alive.