Xkill Super build

[Xkill]

Let me just show the last update for this is as it has already hit the rocks a few times.

Decided to cut new wheels from 3mm G10 and went to a different design front and rear. Why? Because I can and I liked both designs....
Also designed the weight holders.
They have tungsten in the lower part and Brass on the upper. Max weight is 304gr per side.



To hold the weight hangers in place I have this 3d printed part with 2 screws on opposite sides.


To be sure they dont rotate I makr the place for these screws and just drill 1 or 2mm deep. Just be careful not to drill to the bearing pocket.


And that's that!


At this point I worked on the electronics (not much to see there).
In the end I am running a HH SHV500 on the front and a Futaba A700 on the rear (both of them running 3S), HH BR mini and the 35t HH motors.





Next I started working on the chassis skid.
Almost 2h after I got it done!

From this....

.....to this


Also made front and rear skids.
In the front it will hold the battery as well.



Looks nice under the sun!


Final weight of the pig:
Just over 3.4Kg with a fully loaded front and no weight on the rear.




And some bonus shots




After about 5 long duration packs of 1100 mah (plan on running 650 packs but these ones were borrowed to me) I can say I really like using this rig and adapted well to the rear steer, even if sometimes I still have to think about where I want to go!

I also didn't like the design of the chassis skid and eventually removed it.
I will try a different design.

I will probably put longer shocks in the front to try something out...

And, finally....
I broke it already!!!

The front right welded shaft didn't last long....
I have a plan to fix it/improve it but I need some time and lathe work....

I will try to come up with some videos in the future.

[Xkill]

Latest Super Updates.
I have tires and I also have the temporary links made.
I will use 5mm Ti on the lower links and 4mm on the top links.

[Xkill]

When I did my 2.2 pro I made a 2mm plate with holes on it and I also cut an extra piece (spare), because I was not sure it would hold the abuse.
7 years of abuse after it's still the OG piece...

This will be 4mm without any holes so I think it will hold up.
If not I will cut another one because I didn't do a spare one this time...

[Curtaroni]

Do you think the center piece is going to be strong enough to take the torsion brought by a super?

[Xkill]

I hate building links!...
I dont have a setup table for a Super so I made on the desk.
Axles are fixed to the table with some wood screws.

I am building the links with the rig at full bump.
So far I'm using traxxas bigbores but I will have to solve the issue of preload of the springs.

[Xkill]

Yes, that is my electronics tray.
Maybe I'll do something similar on the Super, I will see what space I have to work with once I make links.
I think the servos will be fine...
Also I don't have a programmer for the futabas so the strengthener would also mean buying that.

[crawlercon]

Sorry, took me a while to get back here. That a pretty cool concept. I'm guessing the lexan at the right is the front, and an electronics tray? I'm interesting in how the servos work without torque multipliers too. On my super the rear seems ok with the Hitec servos and strengtheners, but the front seem a little lacking. I finally bought the farm and got some Futaba A700s. I'll probably just throw one on the front and see how it does. If their advertised stats are accurate that is a hell of a strong servo, and doesn't change much as the battery runs down. I'd like to see how it compared to a Holmes servo powered on 4s. A700 might handle full 3s, some people say they run that way, but I doubt it will handle 4s. Just see if it gets hot I guess.

[Xkill]

I will be running the futaba with ou servo stregthener and see how they go about...
They will be on 3s straight, no bec.

This is how my "skid less" pro looks like.
The super will be the same.



Its only a bit of lexan so the rodends wont get stuck on the rocks.
Its 25mm wide at the center and IMO works very well.

[crawlercon]

Looking good. You planning on running servo strengtheners or do you think you can get aways without them? Can you post a couple photos of your Pro so we can see how your skidless design works?

[apehanger]

cool design !

"I made a upper brace for the chassis but the home printed ABS decided to shrink and doesn't fit..."

Yes I know, ABS shrink a little bit! Measure the component and for the next 3d-print enter the difference in the slicer, for example print 2% bigger.

[Pat13]

Very cool , good job

[Xkill]

Work on the Super continues!

While rebuilding the front axle I noticed the original CVD was really worn out.
I could not even take it apart and it was binding a bit.
The long term plan was to move to Universals at some point so that plan went to Fast Track.
It would have been better if I had a lathe but so is life....
They didn't turn out too bad and griding and bad lighting is the best remedy for crappy welds.
I hope they will hold.








After that I had to "adjust" the hubs that I am going to use on this.



Then it was off to the CNC!



Wheels and chassis were cut.





Chassis turned out very well!
I'm happy with it.
I can move the lower piece for a more front or central bias.
For now I think I will start with a more conventional setup.







I made a upper brace for the chassis but the home printed ABS decided to shrink and doesn't fit...



This might not be the final color setup for the wheels and chassis but you get the idea...




I will be using a 3D printed, all in one, spacer and back ring.
This might not be the lightest (I can still work on that), but it's very simple and cheap.
Only 4 screws on are enough for a very stiff assembly.
Disadvantage is that the width can't be changed easily....



Shes gonna be a PIG!!!
150g per wheel without the insert and tire!!!



Updates will take some time now but I'm happy with where this project is now.

[Xkill]

Got very Lucky!
Even if the axle was looking and spining without a problem one bearing had graneded itself.

The bearing balls were not found, probably in the midle of all the grease that I took out.

Then I had the problem of removing the old bearings.
Only with the heat gun I managed to take them out.

Only one gear has some marks but they will survive.
After all, its a bully v1!

[Xkill]

The weight before I took them apart.



I could still cut a little bit more but it would probably be less than 10g per axle and I'd stay with some gears exposed.
Meaning I'd have to build a plastic cover....
Sóõ I dont think I'm gona bother with it.

[Xkill]

Whoever machined my bully axles did a great job!
The gears looks awesome!





Need to clean everything and put it together before I start loosing parts in the Empire of Dirt (Aka my desk).