Next 2.2 Axle CAD - Need Input

[rc4wd]

What you see above is just a concept, the idea here is connect the motor directly to the dark gray part the axle. It wont be adjustable, so only one pinion gear size. We are already working on the custom helical gears.

The goal here is have an extremely compact 2.2 axle. To protect the motor, we will have a skid plate right below it.

In terms of overall axle housing look, we want to make it more attractive, let us know want guys want...

[young_version]

Originally Posted by rc4wd

What you see above is just a concept, the idea here is connect the motor directly to the dark gray part the axle. It wont be adjustable, so only one pinion gear size. We are already working on the custom helical gears.

The goal here is have an extremely compact 2.2 axle. To protect the motor, we will have a skid plate right below it.

In terms of overall axle housing look, we want to make it more attractive, let us know want guys want...

why not offset the housing to about 40 degrees and in corporate an upper link mount into the design......also use a worm drive so the reduction will be low and the drag brake effect will be good. BTW you can use slots for motor mount so the pinion size can be adjusted. hope this helps.
btw did you get my package attn. silver?

[run2jeepn]

Ok here is what I think would be help..


1.Rotate the Motor up 45* or just enough for a BTA kit. This will leave room to not need a Skid Plate. Also help keep it out of harms way on the Rear.

2. Make the axle C's Small and where they will fit your Alumn Clod knuckles with Zero Spacers. These will save money and time since you already make the Knuckles.

http://rc4wdstore.com/product_info.p...roducts_id=202

3. You need some sort of Upper Link mount like the Clod. That way it will work with The Stick and the Pimp Cane. This will save money and time since you already make Upper Link...

http://rc4wdstore.com/product_info.p...roducts_id=286

4. The Rear axle will need to be a Compete Straight axle. Shafts and all.

I thought about having the Center Case offset to one side. Something really close to the Tire and wheel. But then Turning issues come in to play. Then you also have the weight of the Motors off to oppsite sides or both on the same side. Which might cause some weird off Camber action. So I say center the motor and try to keep the Ground Clearance the best you can.

[Offroader5]

Not sure I like the idea of a non-adjustable motor to adjust gear ratios. Now, if you incorporated into the design, a way to change one of the other gears inside the case so that you could leave the motor mount alone...then you could still adjust the gear ratio.

I think you need to design a small scale axle assembly next

[hitman46mod]

Originally Posted by young_version

why not offset the housing to about 40 degrees and in corporate an upper link mount into the design......also use a worm drive so the reduction will be low and the drag brake effect will be good. BTW you can use slots for motor mount so the pinion size can be adjusted. hope this helps.
btw did you get my package attn. silver?

I would like to see a top mount worm drive axle like the TXT so every thing is up above the centerline of the axle. It would allow for ground clearance and reduced pinion angles.

[Offroader5]

Originally Posted by hitman46mod

I would like to see a top mount worm drive axle like the TXT so every thing is up above the centerline of the axle. It would allow for ground clearance and reduced pinion angles.

There are no pinion angles...there's no shafts..the motor is mounted directly to the axle case like Clod's.

i agree moving the motor up and creating the top load of the motor pinion would help with clearance, but you'd lose clearance on the top for upper links and body height.

[frdtrkguy]

IMHO, A Raptor 2 based 2.2 axle would be the ticket. Smaller axle C's, a narrower width and straight axles in the rear. The design looks cool but it has its share of issues.

[hitman46mod]

Originally Posted by Offroader5

There are no pinion angles...there's no shafts..the motor is mounted directly to the axle case like Clod's.

i agree moving the motor up and creating the top load of the motor pinion would help with clearance, but you'd lose clearance on the top for upper links and body height.

I said, this is what I would like to see.

[WKKILLER]

How about fixing the Raptor 2 axles first!

[Offroader5]

Originally Posted by hitman46mod

I said, this is what I would like to see.

And they said they wanted feedback on the rough design shown...not entirely new ideas

[Fracture]

can we see the internals for these axles?
It would make it easier to see how these axles can be developed/refined

Do people want worm drive with the ability to fit different pinions? If so, it shouldnt be to difficult to come up with something worth considering.

My main doubt is do people need 2 motors on a 2.2 rig? just a thought.


frac

[PROTOTYPE]

I usually dont get involved in these " tell me what you think" but this needs attention. :?


Please get away from the raptor style C's . Fix your present raptors then move on.

Those C's may be made of aluminum but the style is wrong. Try and add in a more rounded bottom C. You have the clearance. To much right angle edges is what is hurting you . Also the bottom of the C at least can be narrowed and rounded . Seems like all your axles have that same sharp angles .

After rereading your post , I think if you want the more attractive 2.2 axle your asking the wrong group of members . With the motor protruding off the center of the axle that's going to be a major hang up area. I don't care if you have a skid plate or not. That will be even less ground clearence.

And not having an adjustable motor mount is not a good plan . You will have everyone from crawlers to bashers and everything in between wanting to run different motors. Someone who wants to go slow might get bummed out by the choices they have and the same for the speed bashers. Unless you offer ever type of pinion (in stock) and even different worm gears to inter change.

What I suggest is, design a drive shaft that will work with that axle . It will be nice and high . Make it be able to change ratio with a clam shell designed plate that you originally tagged as the "grey part" . As that piece as a clam shell design it can also house the bearing that the axle will spin on. Less friction = less wear and better performance.

What that will free up is the driver will be able to adjust the ratio with the motor and or pinion.And also all the spurs that are out. Less work to change a motor then rip open an axle.

Just what I thought of , off the top of my noodle.


Great products but need to move away from certain designs.

[Fracture]

I would haveto agree about the knuckles, some of the engineering could do with some refinement.

Now this motor-on-the-end-of-the-axle thing has been bugging me, so naturally I hadto model it:?

now I dont know engineering speak so I wouldnt a clue what the gears are in the rc4wd design.

I do however understand 'worm drive' so i got to drawing and came up with a fairly crude prototype in 3ds max.
This design isnt exactly any prettier than the above but it could be built strong and it does keep the motor out of the way a bit better.
The main problem is where to split the case and how the hell to machine it.
Having seen the t-rex's Im sure machining shouldnt be a problem though.

excuse the incompleteness.
everything is running on 5x11 bearings with a random worm drive (dunno what the ratios are on those things)



The motor plate would be appropriately slotted to allow different sized pinions.
The pics above have no bracing or mounting holes - theyre just an idea of how everything could be arranged.

yeah, the gearbox would of course be clocked in relation to the knuckles.

I really like the idea of having the motor where it is, would work great for tube buggies where a clod style setup may interfere with the links.

I myself prefer scalers so I would never touch an axle like this

now u guys have no excuse for coming not bringing out an arse kicking axle j/k

I still wanna see how you guys crammed a decent reduction into the tiny case in ur first pic:?


just my $0.02

[hitman46mod]

Originally Posted by Fracture

I would haveto agree about the knuckles, some of the engineering could do with some refinement.

Now this motor-on-the-end-of-the-axle thing has been bugging me, so naturally I hadto model it:?

now I dont know engineering speak so I wouldnt a clue what the gears are in the rc4wd design.

I do however understand 'worm drive' so i got to drawing and came up with a fairly crude prototype in 3ds max.
This design isnt exactly any prettier than the above but it could be built strong and it does keep the motor out of the way a bit better.
The main problem is where to split the case and how the hell to machine it.
Having seen the t-rex's Im sure machining shouldnt be a problem though.

excuse the incompleteness.
everything is running on 5x11 bearings with a random worm drive (dunno what the ratios are on those things)



The motor plate would be appropriately slotted to allow different sized pinions.
The pics above have no bracing or mounting holes - theyre just an idea of how everything could be arranged.

yeah, the gearbox would of course be clocked in relation to the knuckles.

I really like the idea of having the motor where it is, would work great for tube buggies where a clod style setup may interfere with the links.

I myself prefer scalers so I would never touch an axle like this

now u guys have no excuse for coming not bringing out an arse kicking axle j/k

I still wanna see how you guys crammed a decent reduction into the tiny case in ur first pic:?


just my $0.02

Nice! I think I just creamed my pants. I would ditch the motor and set up an adjustable pinion for different ratios.

[hitman46mod]

Originally Posted by Offroader5

And they said they wanted feedback on the rough design shown...not entirely new ideas

And you did not read the last sentence "let us know want guys want..."

[code3pse]

HI! Worm gear will made this axel totally indestructible and extremely strong. I use this mechanism in some bosch tools in my rental store.

[Fracture]

now Im sure the idea of no drivelines appeals to some people, but realistically a shafty comp rig with high clearance and all the reduction at the axles may be more appropriate.

torque twist can be pretty much eliminated by using a worm gear on the axle, giving a huge reduction. the tranny can then be higher geared. the driveline will then spin faster, but with less torque

now, modified max axles seem darn good and this combined with a worm would give a very slim axle great for a comp rig.

now this is what im thinking:




a high clearance axle that splits down the middle (like the t-rex's) this means both the front and back half can be indentical

the design would sandwich the worm gear shaft, which would ride on twin bearings.
the cases would be large enough to accomidate xvd's or other cvd's.

this may not be what you guys wanna make, but it would be a relatively easy design to get to production, it has the same amount of parts as a t-rex, and I think it would make some people with comp buggies very happy!

frac

-edit-
of course it would need to be reshaped so that it can be efficiently CNC'd and it would need shock & 4-link mounts.

[EeePee]

frac, you are totally my favorite newbie!

[Fracture]

lol thanks, I just figured my time is free but rc4wd's isnt, so I may as well stick concepts out there for people to comment on, should make development time faster hopefully

[JavelinSST390]

Originally Posted by Fracture

now Im sure the idea of no drivelines appeals to some people, but realistically a shafty comp rig with high clearance and all the reduction at the axles may be more appropriate.

torque twist can be pretty much eliminated by using a worm gear on the axle, giving a huge reduction. the tranny can then be higher geared. the driveline will then spin faster, but with less torque

now, modified max axles seem darn good and this combined with a worm would give a very slim axle great for a comp rig.

now this is what im thinking:




a high clearance axle that splits down the middle (like the t-rex's) this means both the front and back half can be indentical

the design would sandwich the worm gear shaft, which would ride on twin bearings.
the cases would be large enough to accomidate xvd's or other cvd's.

this may not be what you guys wanna make, but it would be a relatively easy design to get to production, it has the same amount of parts as a t-rex, and I think it would make some people with comp buggies very happy!

frac

-edit-
of course it would need to be reshaped so that it can be efficiently CNC'd and it would need shock & 4-link mounts.

HOLY CRAP!!!!! You are a GENIUS!!!!!