Is a 50* incline considered steep?

[Calicrawler23]

A local comp a while back. The picture doesn't do justice how tall the wall really was.

 

[shelljeep]

EeePee- Cool vid, lots of quick saves. Good to see driveshafts make that climb. The last thing I need right now is the Berg bug.:mrgreen:
I need to go finish reading your LCC build thread to see what you did for motor. I just swapped in a 35T, and it's like night and day. I just got a used 7T Cobalt Puller also, but I need to figure out how to make it fit.
Would you call Doom 65* or 70*?

 

[EeePee]

The guy filming used an iPhone app that measures degrees. It went from low 60s as you hit it, then over the first hump to low 70s, then up to 83 I think at the very most top right before the front tires cleared. Momentum was obviously very important, it just took me some time to find the exact right amount.

Not the most scientific video, but shows what can be done with a quick burst.

 

[shelljeep]

We have NATURAL 65's in Colorado :twisted:

Don't rub it in.

If you were to winch the suspension down on a shafty you might be able to, if you were very very lucky. Its hard to keep any kind of torque twist reigned in with that much weight off the wheels.
I can do 65* and barely lift a tire. Any more than that and my tires wash out and it either slides back down or starts bucking, and when it does that its going over unless you backpedal.

Good input. I've got some suspension ideas in mind, but sounds like I need to research the the suck winch thing too. Does that require another channel?

A local comp a while back. The picture doesn't do justice how tall the wall really was.

No, that looks pretty sick to me man. Nice.

 

[shelljeep]

The guy filming used an iPhone app that measures degrees. It went from low 60s as you hit it, then over the first hump to low 70s, then up to 83 I think at the very most top right before the front tires cleared. Momentum was obviously very important, it just took me some time to find the exact right amount.

I have that app. F'in cool.

 

[Duuuuuuuude]

Good input. I've got some suspension ideas in mind, but sounds like I need to research the the suck winch thing too. Does that require another channel?

To make it active, yes. But I think the rules will not allow for that in the 2.2 class. Maybe I'm wrong. I'll have to go look.

edit: as far as I can tell, winching down the suspension is legal.

Watching EeePee's Losi do that makes me wonder how much less TT they have compared to an Ax-10. I know chassis tuning can do wonders, but that thing stayed really flat. I may have stuck my foot in my mouth earlier. :?

 

[Duuuuuuuude]

Here's one from a NWARC comp. Hated that f'n climb. Not sure what the angle was, but it was steep and traction alternated between kinda grippy and really grippy.

 

[JesterSpec]

http://www.rccrawler.com/forum/showthread.php?t=212470

forget if its 1 or 2, but the one part of the vid shows him climbing a wall.

 

[shelljeep]

Watched the first vid, very cool. He could match his wheebase in spots that were undercut and it would pull him up stuff that looked past 90*, cool.
I can get 53*. but there's a big difference to 60. Haven't even got my rear tires off the ground yet.

 

[EeePee]

Watching EeePee's Losi do that makes me wonder how much less TT they have compared to an Ax-10.

Well, for the most part the Losi doesn't show any, I mean, there's a lil bit, but so barely there.

I don't have video, and thus no proof, but I've gotten my Axial SSS chassis truck up there with Rover tires on it.

 

[Stormin2u]

EeePee's berg FTW! http://www.youtube.com/watch?v=7e94k7mq-RA

I forgot that video it's a great one and the Losi video is equally awesome and on the same rock. "thumbsup"

 

[EeePee]

If I may... :mrgreen:

Actually the Losi wasn't anywhere near as planted as the Berg was. Biggest difference between the two was that the Berg was set up with a droop suspension. Low CG truck already made even more stable with the droop suspension.

The Berg shows very little motor stall.

The Losi was too light in the front, I have 7 ounces in each tire. I think total weight is about 13.5 ounces each one. It wants to wheely over, as you can see. A couple more ounces up front would help.

 

[Stormin2u]

Yep the Berg looked more stable but the Losi considering the difference was still surprising. The driver was OK to.

 

[BansheeManiac]

Well shit, if I'm getting called out then here's the Losi doing it too.

And yeah, good shit right there. "thumbsup"

Skip ahead to the end.

http://vimeo.com/7403816

EEPEE weres this place at im from pa and have no place to screw around with my crawlers in the tweener weeks before comps send me a pm

Thanx,
Lance

 

[chardiboi]

Well shit, if I'm getting called out then here's the Losi doing it too.

And yeah, good shit right there. "thumbsup"

Skip ahead to the end.

http://vimeo.com/7403816

damn. . .. that was so freaking cool. . could just imagine how many hours it took to do it. . . will try to do it on my lnc. . . god help me. . . .lol

 

[Simon.O.]

After reading through this thread I had to have go with my modded Venom Creeper to see what sort of measured incline it could sustainably climb.

I set a 4' long board with an old towel on it and went for 55 deg, Done !
70 was not going to happen.
I can now get 62 deg with a light float on the front rh tire. This is a great way to test new suspension ideas."thumbsup"

All done on dodgy cut up and home foamed Axial Rock-Lizzards.

 

[Ads]

Axial, standard chassis.

 

[rottenbelly]

I made up a test board for my rig so i can try different link positions. It is neat how moving a upper link up or down can affect crawling ability. Once over 60% every little bit helps. (wheel weight, link placment, Lowering weight in/on chassis)

Home made WK chassis testing.

 

[EGRESSor]

http://www.youtube.com/watch?v=CVGepJcMk34

it looks better outside

http://www.youtube.com/watch?v=plPhM8FrDNA

all without wheelweights

 

[speed ghilliesniper]

i've got mine up to 62* a couple times, after that mine just back flips