indavidual wheel dig?

[on stolen rocks]

yes the action happens at the half shaft.

 

[renoirbud]

Seems it would be easiest to have a motor drive each wheel. Then you could modulate each one, like a berg.

I agree with this 100%, engaging mechanical parts sucks when there is pressure on the drivetrain, that is just like switching into 4wd once you are stuck, then back to 2wd, etc....

 

[wrightcs77]

I had built a set of TLT axles to be able to lock each rear wheel independently, along with a driveshaft dig. The turning radius is sharper with both rear wheels locked compared to one rear wheel locked and the other rear wheel freewheel or driven. I think this is due to the the relatively low weight of a 2.2 crawler.

 

[lakedan5150]

I love the idea of individual wheel dig, I'd like to see it done.

 

[on stolen rocks]

dr.greenthumb calling dr. greenthumb!

appreceate all the support.

 

[P1choco]

I had built a set of TLT axles to be able to lock each rear wheel independently, along with a driveshaft dig. The turning radius is sharper with both rear wheels locked compared to one rear wheel locked and the other rear wheel freewheel or driven. I think this is due to the the relatively low weight of a 2.2 crawler.

Hmmm.....

 

[hairba11]

wonder if you could use the selectable diff locker in the venom axle.
lock it for 4x4,
unlock it and transmission dig, using the open diff as a pivot
unlock it and dig one tire, using the open diff to "overdrive" the outside tire to help cut a corner

 

[rcmike]

You might be on to something with the weight thing. I have a small tractor that has individual brakes on the wheels so you can lock one and pivot around it but most of the time it doesn't work very well and just drags the locked tire around. It might work if I had weight in the tires but mine are unweighted.

 

[VeryBumpy]

Interesting idea. Almost seems like the next big step after MOA. Keeping an eye on this thread.

 

[Harley]

A mechanical dig at the axle shaft engaged by a micro servo is just plain going to have problems. You are fighting all the torque of the tire. Even with a 10 spline shaft you would have 36 degrees of actuation between pick-ups. I don't see it being anywhere near reliable enough. Until it is MAEW (motor at each wheel) that can be engaged and disengaged independantly by electronics it just isn't going to be good enough with the room we have.

We have all talked about this since 2004. Someone always says they are going to do it and then it ends up in a pile of parts. I hope someone proves me wrong but if this were Vegas I can tell you where my money would be....

 

[lsone]

Even with a 10 spline shaft you would have 36 degrees of actuation between pick-ups.

could you explain this?

 

[VeryBumpy]

If someone made a tiny electromagnet clutch similar to a cars air conditioning compressor, that could work. Making a strong enough one may be hard to do however.

 

[Harley]

could you explain this?

2 spline such as R2D = 360/2 = 180 degrees of rotation, then divided by the axle reduction 2.5 or so for an axial = 180/2.5 = 72 degrees at the wheels.

4 spline such as DNA = 360/4 = 90 degrees of rotation, then divided by the axle reduction 2.5 or so for an axial = 90/2.5 = 36 degrees at the wheels.

10 spline at the axle = 360/10 = 36 degrees of rotation at the wheels.

The point is that a ten spline is hard to do cost efficiently and wouldn't yield any better results as far as rotational slop at the wheel.

 

[on stolen rocks]

Im alwase game for a challane. solving problems is how i make my $$$.


the discouragement fules me more than the incouragement

 

[on stolen rocks]

and im working on a 0 degree disingagement "thumbsup"

 

[P1choco]

Im alwase game for a challane. solving problems is how i make my $$$.


the discouragement fules me more than the incouragement

In that case, it's never gonna work. Just give up dude.

 

[jeepcreep]

It won't work. It won't work. It won't work. It won't work. It won't work. It won't work. It won't work. It won't work. It won't work.


well....

I hope that that discouragement got you "fueled" enough...

cause I sure want to see if it works."thumbsup"

 

[P1choco]

Just remembered it's the 15th. Have it working yet?

 

[TattooKenny]

I still say use a axle out of a Blizzard and figure out a way to put a remote locker in it like the Venom. Then your just using brakes on each wheel. I'm going to go with Harley on this one.....If anyone could figure out how to do it, it would be Harley:lol: The guy is a giant brain I tell you!:lol:"thumbsup"

 

[on stolen rocks]

not yet havent had a chance to get into the lab for more than 1 hr.

and ive been concentrateing on the parts for my 1 to 1 rig

just scored 2.5" hime joints and 200 foot of .25 wall dom

ill start in on the dig as soon as i mill the "brakes"