Duratrax Cliff Climber

[jdawg53]

Just wanted to offer any help possible to anyone with Cliff Climber questions.
I am jdawg53 on rcc.
I will try to post up a couple Cliff Climbers that I am currently working on.
Thanks
J

[Rckcrwlr]

Thanks Jason...I think this is one of those sleeper rigs that has huge potential.

May have to acquire one...

[Rockbound]

thanks for the help!

[crantma]

Just wanted to offer any help possible to anyone with Cliff Climber questions.
I am jdawg53 on rcc.
I will try to post up a couple Cliff Climbers that I am currently working on.
Thanks
J
Hey I just picked one of these up for my kids, any help would be greatly appreciated. I noticed that the rear motor stalls alot, any reason why?:confused:

[Rockbound]

Hey I just picked one of these up for my kids, any help would be greatly appreciated. I noticed that the rear motor stalls alot, any reason why?:confused:

aka clod stall.

with any motors on axles set up, any time you get more resistance on one motor than the other it will stall out. this is because you are giving the motor under load the same amount of power as the other motor. it stalls because it needs more juice under load to turn the wheels. while the axle under no load will continue to turn.

[Rckcrwlr]

You can sometimes minimize that by going to a smaller tooth pinion on the rear...this sometimes will balance out the inefficiencies.

Jason was running a couple at Motorama that were just sick...

He had the Holmes 380 Puller motors on it... :gum:

[jdawg53]

The first thing I suggest you do is weight the front end. The best way is to install stick on lead weight strips to the outside (between the wheel and foam insert) of the wheels. If you are using the stock wheels/tires you can fit a strip on the inside of the wheel also.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXK204&P=ML
And of course like Rckcrwlr said there is always the holmes motors which are amazing.
http://holmeshobbies.com/product.php?productid=215&cat=17&page=1
J

[crantma]

You can sometimes minimize that by going to a smaller tooth pinion on the rear...this sometimes will balance out the inefficiencies.

Jason was running a couple at Motorama that were just sick...

He had the Holmes 380 Puller motors on it... :gum:
With a smaller tooth pinion on the rear, wouldn't the front act like it's dragging the rear? Or would the slow speed of a crawler actually make it so minimal you wouldn't notice it?

[Rockbound]

Technically...yes.. But with using seperate motors on the axles and 1-2 tooth different pinions the effects will be very minimal and totally un noticable. But it will help the stall effect a little. You don't want to get too crazy with different sizes. I wouldn't go more than 3 teeth different or it will start to do crazy things. Smaller amount of theath in the rear will make rear axle turn slower but with more torque.

[crantma]

Thats what I thought, I haven't even had it outside yet and i've noticed the stall. Thats what i'll do then. Thanks for the help. Any other tips for this particular truck?

[Rockbound]

Try it on the rocks first before you change it. It may not be as bad as you think. If you are only driving on couches and carpet, you have unlimitted amounts of traction. You won't have that much traction on the rocks. Plus you may find that stall more helpfull than harmfull