Propject 4ws (4 wheel steering)

k_manNZ · #1 12-19-2004, 02:03 PM

Forgive me if it's already been done.
Some pics to get you started.
Will docment my progress as I go along.

Notes: The drive shaft is not dead center.

Any ideas thoughts welcome

For some reason the images don't seem to be parsing properly.

Option1
To keep the drive shaft in line.
Dosen't work, it will be trying to tear itself apart.

Option2
The chassi will be offset. Won't do.

Option3
Now to track down the parts.

Option1a
Moved the gear to the other side.
Now I'll have to figure to power that driveshaft.

options
the steering system out of a zz se. Quiet slow but torquee
the teeth spacing on the gears are the same as 1/10 gears
have a micro rc tank, will dig that up and see. Lots of torque

slugbugg · #2 12-19-2004, 06:04 PM

Hmm...looks interesting

One question:
Where is the big drive gear/motor?

and as a possible solution just use 2 motors and drive the front/rear axles seperately like a clod buster(it worked well for tamiya)

4ws
4wd
twin motor
4 cell
=
max fun

looks good, keep the pictures coming

my truck is just laying here in a heap of parts right now untill i decide what i want to do to it.

k_manNZ · #3 12-19-2004, 07:17 PM

Quote:

Originally posted by slugbugg
One question:
Where is the big drive gear/motor?

Darn caught me out

i was hopeing some more creative than me might figure that one out.
Looking thru the tttt forums to try and get some ideas.

Quote:

Originally posted by slugbugg

and as a possible solution just use 2 motors and drive the front/rear axles seperately like a clod buster(it worked well for tamiya)

4ws
4wd
twin motor
4 cell
=
max fun

Ahh yes, the clod.
Mine's in need of some tlc.
Stripped the gears after running at 50kph for too long (2 hrs).

slugbugg · #4 12-19-2004, 07:57 PM

Well your belt idea is good and you might be able to find a very thin small o-ring at the hardware/auto/motorcycle store.Making a pulley for the shafts would be easy.

The more I look at mine and think about it the more I realize that there is not a whole lot of useable extra space on those trucks.

I'm still trying to decide on either a 4ws/4wd solid axle or a wider 2ws/4wd independent suspension truck.

has anyone checked to see if the ZZ/se steering motor pinion would mesh with the ZZ/mt steering lever arm?

I just want a micro truck that can handle that little obstacle course in the picture.an obstacle course

k_manNZ · #5 12-19-2004, 08:39 PM

Quote:

Originally posted by slugbugg
has anyone checked to see if the ZZ/se steering motor pinion would mesh with the ZZ/mt steering lever arm?

I just want a micro truck that can handle that little obstacle course in the picture.an obstacle course

Just checked, pinion<>gears don't mesh

But you can easily swap pinions, or resolder the motor.
If you want propo, now that gets tricky but it has been done.

The stock trucks are build for that course I think.

crazydave · #6 12-21-2004, 10:20 PM

I was thinking about a dual steering design, but haven't considered the offset driveshaft, that's gonna change my thought process real quick.

I was thinking of a mid engine design. With the motor laying flat side against the side of the chassis, I figured there should be enough rough to for one of them Li-Poly batteries everyone has been sticking in their monsters. Those batteries are really thin.

I was thinking the motor would be driving a large gear, like the idler, to drive the drive shaft. I'm think with the offset driveshafts, I could use the big gear to drive both drive shafts, but the the gear would have to be center mounted, and that puts all kinds of holes in my plan.

it_thing_stuff · #7 12-23-2004, 08:21 PM

hey k_manNZ, i know this is kind of irrelevant to the thread but.. i noticed that you're in auckland. which part of auckland are you in? im in east auckland around howick. i was wondering, where do you buy all you radioshack r/c stuff? i bought my mt on a visit to the states.

k_manNZ · #8 12-23-2004, 10:08 PM

it_thing_stuff

I feed my addiction with the help of ebay.

slugbugg · #9 12-27-2004, 11:40 AM

Any more progress/pictures.

slugbugg · #10 12-27-2004, 01:55 PM

GearGuy2005,
what about the big drive gear on the rear axle and the slightly smaller idler gear, without those that truck would never move.

I myself am leaning more and more towards an Emaxx type setup with the center driveline and suspension arms all the way around.Even then the big gears get in the way unless the motor and driveshaft are mounted vertical directly over the axles and that might work but then the steering issue comes up.

Unless someone finds a very high torque micro motor to cut down on the needed gears.I wonder if those motors for the SuperSlicks have more torque.
maybe someone can find a way to drive the front axles just like the back.

I have a lot of ideas but untill I get all the parts drawn up and into my cad program I wont know exactly how it can all fit.

theone&only.... · #11 12-27-2004, 04:26 PM

i dont htink it would work unless you run a gear in the center...wich would take away all your ground clearence. you could put the gear in the center next to the 45 dregree gear thingy...but that would make you not much ground clearence in the center of the axle...... you could do this...it might work...put a worm gear on the motor and a tiny gear on the center drive shaft....it would be geared plunty low and you would still have tons of clearence....but you have to put the batteries somewhere else.

k_manNZ · #12 12-27-2004, 04:44 PM

Good to see there is some interest.

Here is the pic of the micro tank gearing system.
I will most likely use this as its the easiest to do.
It won't be the fastest thing around. 64:1

Notes in pic, looks like i'm ready to send my two MTs to the chop shop.
At least I had about 1 hour of fun with them if it all goes horribly wrong.

slugbugg
imo I think the stock MT motors have more power than super slicks. Just look at the size

I don't have a SS motor to verify tho.

Any feedback appreciated.

theone&only.... · #13 12-27-2004, 05:20 PM

that last pic looks like it would work...kinda what i had in mind...but geared lower than you would want. if you run the worm gear right on the motor and a small gear on the drive shaft it would be a little faster with a ton of torq...the 4ws sounds like a good idea...but i wouldnt take my only 2 zzmts and my tank to make 1 4ws mt that might not work....

k_manNZ · #14 12-27-2004, 06:49 PM

theone&only....

I'm going all out on this one.

Don't forget a ZZse too

So let's see
2x ZZMT $50
ZZse $25 Just for propo speed.
FET mod $20 Not steady enough to do it myself.
Tank $10
Lipo $8
Shipping to the other side of the world $50

that's one expensive micro.

Good thing i'm an old gezzer

Steve · #15 10-25-2005, 07:57 PM

So, what happened to this project? Was it a success? I'm about to start my own and was just wondering.