[help] Front axle for military truck.

[Mechbuilds]

5 minutes ago, suffocation said:

I might've already shared this - can't remember, getting senile. It's loosely based on Nicjasno's Unimog axle. It can be easily adapted to work with portal axles and to match your desired track width.

I really wanted to stay away from this part:


And make the suspension only by using these:


Because that ball cup fork thing doesn't look realistic.. These axles are very visible under the car and i wanted to preserve that long front driveshaft and short driveshaft at rear because it's unique to this truck..


But since there is no way t make the suspension work with those parts it's easier to just copy what @nico71 did with hes heist truck.. Because that way i can make the front longer and rear shorter so it's at least somewhat trying to imitate the real thing.. 
 

[suffocation]

28 minutes ago, Mechbuilds said:

Because that ball cup fork thing doesn't look realistic

I think it looks fine but hey, de gustibus non disputandum est

[JLiu15]

In my live axle suspension designs I’ve usually found this piece to work pretty well. It serves the function of a link yet doesn’t allow movement transverse to the chassis. If there’s quite a bit of play in the system (which there usually is) then you could install a link transverse to the chassis attaching the axle to the main frame so it doesn’t move side to side. 3 of them is usually enough to keep the suspension stable - you could take a look at the 42043 Arocs’ front axles to get a general idea. If the aforementioned suspension arms are too short you could attach a beam to them to make them longer. Additionally, this piece should work too.

[Mechbuilds]

Yeah the issue was that the axle has diagonal play when twisting. So yeah the axle does move up and down but the part has lots of play on it which causes damage to parts as it twists sideways.. Also when you lift the right tyre and have the left tyre stay down, the axle has play that the other tyre is moving forwards and other is moving backwards.. This causes the drive shaft to twist sideways and pull out of the axle. 

[JLiu15]

1 hour ago, Mechbuilds said:

Yeah the issue was that the axle has diagonal play when twisting. So yeah the axle does move up and down but the part has lots of play on it which causes damage to parts as it twists sideways.. Also when you lift the right tyre and have the left tyre stay down, the axle has play that the other tyre is moving forwards and other is moving backwards.. This causes the drive shaft to twist sideways and pull out of the axle. 

I think that a transverse link like I mentioned above could be the solution to that - every time I make such a suspension I made sure to include them. As for the tires moving forwards/backwards when the suspension compresses, I'm guessing you could install the suspension arms as far apart as possible without colliding with the wheels when steering and use 4 (or more) of them to connect the axle to the main frame instead of 3 if you're using my method.

Here are my MOCs that use the aforementioned suspension design:

https://www.youtube.com/watch?v=XBnszw-WX7E

https://www.youtube.com/watch?v=Ds_9KVoJwwI

https://www.youtube.com/watch?v=AumoQdYt71E

https://www.youtube.com/watch?v=eqkPARznWng

[Mechbuilds]

3 hours ago, JLiu15 said:

I think that a transverse link like I mentioned above could be the solution to that - every time I make such a suspension I made sure to include them. As for the tires moving forwards/backwards when the suspension compresses, I'm guessing you could install the suspension arms as far apart as possible without colliding with the wheels when steering and use 4 (or more) of them to connect the axle to the main frame instead of 3 if you're using my method.

Here are my MOCs that use the aforementioned suspension design:

https://www.youtube.com/watch?v=XBnszw-WX7E

https://www.youtube.com/watch?v=Ds_9KVoJwwI

https://www.youtube.com/watch?v=AumoQdYt71E

https://www.youtube.com/watch?v=eqkPARznWng

Thanks for sharing, i know what you mean.. I'll have a crack at it at some point when i get motivated again.. 
Currently i'm building a mercedes dump truck on the side to at least keep me building and not stop completely.