Another Gmaxx is born

[suicideneil]

5 minutes, 10MB. Not the best video ever, though it does have good music to make up for it....

[ClodMaxx]

wow is that beast low and wide! i like it a lot!!

i was dancing like crazy while watching the vid too. i couldn't help it... the music commanded it, lol.

[mkrusedc]

In cased you missed it in the other forum:
Sick build!!!

Slalom the poles with a wheelie bar!!

[jnev]

That thing is a wheelie monster! :) Looks great.

[neweuser]

I too like the low ride and wide wheels.....nice!

[Serum]

is that manyou?

[suicideneil]

Originally Posted by Serum

is that manyou?

Eh? You mean the music, it was Cascada: A Never ending dream.

The thing that made me really angry was the dopey woman (putting it mildly) who decided to park right in front of where I was driving; got half a field to park in, loads of empty spaces, but she decides to try and run over the truck & park right in my way. I was tempted to let down her tires, but too many witnesses.... Overall a fun day, the weather was great, but man are my legs aching from walking to & from the bash site.

[suicideneil]

Forgot to mention before, but I have some news about my capacitor mod. I decided to loose the 4 small 330uf caps in favour of another big Novak 2700uf jobby ( 2 in total, wired in parallel ). Did it make a difference? YES. Esc temps were no different than normal really, but the thing I did notice was that towards the end of the run the power was still delivered smoothly. By this I mean before I added the extra cap, in the last 3-5 minutes of a run the batteries would 'dump', and the caps would be be providing the power on & off whilst they 'emptied' , then recharged, then emptied again. Hard to desribe, but it sounded like I was trying to change gear ( motor revs up, then dies, then revs up again, then dies & so on ). Now however, theres none of this, and the truck just runs solidly until the last few minutes when the power starts to drop off, then in the last minute or so it really slows down & I call it a day for that set of batteries. Shame the Novak caps cost $10 and you cant get fewer than a bundle of 100 or so per auction on feebay of similar types, otherwise I would add another one or two just to experiment.

[suicideneil]

UPDATE:















I'll let the pics speak for themselves. Hopefully within the next week or so I will be able do make a video of how it performs with 14cells instead of the usual 12.

[suicideneil]

I uploaded the vids to youtube so that I could reach a wider audience. There is also a new vid of the truck using 14cells; not as impressive as I was hoping.


older vid


New vid

I did remember to bring my temp gun this time (aka hacked meat temperature probe, oh man....), the results after 10 minutes of hard running are as follows:

ESC= cold, seriously. Wasnt worth checking it was so cool ~ ambient temp 20*c / 70f ish.
Batteries= hot! ~ 70*c / 160f ish
Motor very warm = 60*c / 140f ish

Normally I would say that the motor was under geared, thats why the esc is so cool yet the motor hot. Thing about the HV motors is that they dont always follow that rule of thumb, so I think I need a few more pinions (18 & 19tooth) to have a play with, and try gearing up a little. I will figure it out though- I know this system is capable of much more; it went faster in the TXT-1 and that was with the old bonded rotor and 12 cells.....

[ClodMaxx]

wow - that thing really flies! those tires sure do make that thing look beastly.

nice!

[RCShocker]

That brick might float !!!

Huge focal point of the truck too.

I like'm like that


Good Lookin Whip you got there for sure.

[mkrusedc]

Very nice!!!!!!!!

That is how I like my 1:1 low and wide.

[suicideneil]

Code: RW3200-11 RW 32 DP Pinion 11 teeth 1 @ 2.95 = 2.95
Code: RW3200-18 RW 32 DP Pinion 18 teeth 1 @ 2.95 = 2.95
Code: RW3200-19 RW 32 DP Pinion 19 teeth 1 @ 2.95 = 2.95
Code: 4470 Traxxas Spur Gear 70T 1 @ 2.29 = 2.29
Shipping: £ 2.00
Total: £ 13.14

Time for some experimenting, I want to get this gear ratio nailed. I also locked the tranny into second gear & removed the 1st gear RCM idler- suprizingly heavy for such a small part. If I really wanted to I could just order the single speed cover plate since I have the coupler & a million spare screws, but.... bah. Had an interesting thought too; if I decide the HvMaxx is no-longer enough power/speed and get the new Novak system or something else, could I use the HvMaxx in a BL boat- dont see any reason why not?

[luisranza]

HEY thats nice do u have a top speed on it.