Efferman's Custom Parts

[SNIPE]

Nice wheel ball joint hubs there, the 4080 needs these I think especially it making it 4wd like some super cars, either my steering arms are too short and toe the wheels in/out or they have too much slack and we the car goes over a bump they then toe the wheels in/out despite working fine when the when the suspension is uncompressed. I think I may need to move them half a stud towards the car, instead of 0 or 1 stud which doesn't work.

PS im just leaving the studded beam idea as it makes technic a bit too easy, you rarley need that many holes right above each other anyhow.

Edited March 16, 2014 by SNIPE

[timslegos]

What material should the turntable be ordered in for maximum usability?

tim

Edited March 16, 2014 by timslegos

[efferman]

Snipe, these hub is only for steering.

Timslegos, polished white should be the best. Before assembling, polish the underside of the gear part. When you assemble it, press them together, stabilize it with liftarms, and rotate it. The more rotations, the more it will rotate smoother.

[Dafgek81]

Do those U406 rimcovers fit on de backwheel of the 8284 tractor?

If so, could you create one for the front wheels?

[Pat-Ard]

Hi,

yes, they fit the rear wheels. This tractor uses the same rims as the Unimog or the crawler...

I think it's not a big problem for the great efferman to design some covers in the size of these wheels:

http://www.bricklink.com/catalogItem.asp?P=41896

Pat

[efferman]

No problem, remind me at the end of the week.

[SNIPE]

I would have thought the hub could pivot with suspension too since it has ball joints there?

[D3K]

I would have thought the hub could pivot with suspension too since it has ball joints there?

I think he meant it's not for a driven axle

[rm8]

Hi,

yes, they fit the rear wheels. This tractor uses the same rims as the Unimog or the crawler...

I think it's not a big problem for the great efferman to design some covers in the size of these wheels:

http://www.bricklink.com/catalogItem.asp?P=41896

Pat

May be it is better ask him to design new rims of this size with better offset? We should ask him at the end of the week.

[efferman]

yes, it is for suspended non driven steering axles.

for the racing wheel small alternate, sixh hole mounting or a different design with a crosshole in center?

[Technyk32231]

Would it be possible to create an Rzeppa CV joint?

[efferman]

What for a cv joint?

[rm8]

yes, it is for suspended non driven steering axles.

for the racing wheel small alternate, sixh hole mounting or a different design with a crosshole in center?

sixhole with axle hole

and dont forget about muscle lovers!

of course, you better know strength of this plastic, so you can say if it is not possible...

I am afraid that this rims will be only for shelf...

Edited March 17, 2014 by rm8

[Technyk32231]

What for a cv joint?

It's a type of CV joint.

It seems to be somewhat similar to 8880 CV joints, but with ball bearings allowing smoother movement.

[Hrafn]

It's a type of CV joint.

It seems to be somewhat similar to 8880 CV joints, but with ball bearings allowing smoother movement.

That's a neat design, but I am skeptical that 3D printing it at Technic scale is going to work well. It would be a lot of small parts, all of which need to be made to close tolerances. The "claw" part presumably also needs to be fairly firm so the "fingers" don't bend out. Also, what keeps the balls from simply falling out when the joint is straight?

[weavil]

That is just to show the travel path of the ball bearings. This might help out.

Assembled

Pulled apart

And the whole shaft assemblly

[2winged]

Check out post #s 94 & 108. He shows parts based on the CVs used in the 8880 car.

[D3K]

That is a neat design, but I think it is pretty useless in Technic axle scale. Just imagine how small the ballbearings would have to be. Also, to print a spherical ball bearing doesn't work, it's just not going to be smooth and round enough.

[efferman]

hmm, it should be possible to make a 3d model, but printable? no

egor i will look what i can do

[weavil]

You could buy the ball bearings. But the retaining ring for the bearings would be the real problem.

[efferman]

metal balls in combination with nylon?

scooby 136 has requested a replacement part for the bionicle rahkshi chest section which iam often use

[N-4K0]

What exactly do you use this kind of part for efferman ?

[efferman]

this is one possibility

100_9097 von efferman auf Flickr

two new parts

a leaf spring. dont know how much load it can take so i have added two pins for standard springs

and a universal joint with crossaxles, one side is one stud long, the opposite two studs long. warning! i dont know if the part is flexible after printing.

[Zerobricks]

Can you reinforce the U joint? Looks awesome!

[efferman]

i guess it is much stronger than the standard u-joint. on the weak points of the standard u-joint, is this one stronger. how much, it has to be tested