Hi there!

In short: I want that topic for all the people that need an example of how to use a part IN or FOR or wonder how to use it correct.

I'll start:

I wonder why they made a totally USELESS:

1. WheelBearing

2. 3SnapGearBlok

3. LTCardanBall

Can somebody explain to me please.

My problem here is:

If i use a CrossAxle 5M and Unuversal Joint = flexible suspension + rotation OK / but no steering

If I use the LT Cardan Ball its either a working suspension OR steering... and only rotation IF there is NO angle but a straight in line with the 3Snap Gear Blok

So why or what for did they make these parts for? It could not be for a good wheel suspension with a combo of steering/suspension/drive train!

Im soooo confused! I used to build the 1994 Super Car 8880 suspension. But these parts are not yet included in the LDD.

Any ideas? Maybe I'm stupid... but I can not see how to build a steer/suspension/drivetrain combo with these parts, like in the 1994 8880 model.

Here are some pictures to help with the imagination and a link to a very good explaination on the 8880.

Essentials of the wheel suspension:

All three action possible, (steering+suspension+rotation).

----------------------------------------------------------------------------------------------------------

Thanks for reading.

Best regards HAL

Hmm i suggest you to check how the official models use the parts, like the grand prix race car and simillar.

Hi GrandDuke, and thanks for answering.

I have - a dozen times before, but no model seems to feature the requirements/conditions I mentioned above.

The Models have either wheel suspensions with:

Steering -> but then NO DRIVE TRAIN possible because of the characteristics of the parts.

Drive train -> but then NO STEERING possible because of the characteristics of the parts.

Suspension -> hard to realize as mentioned above with stupid WheelBearing / 3Snap Gear Blok / LT Cardan Ball

Try to build a working wheel suspension with these parts in LDD with working

steering + drivetrain + suspension COMBINED - that means UP/DOWN + LEFT/RIGHT + ROTATION

Seems Impossible to me with this parts. Any ideas besides waiting until 8880 suspension parts are integrated into LDD ?!

Greets

HAL

Not sure those old 8880 parts will ever be made available in LDD. They are long gone and have not been seen in a very long time.

Now however, I am not sure I understand exactly your question as with those parts, you can have all three functions (steering, driving, suspension) together. That is exactly how it's done in the 8880.

Hi DrJB, and thanks for answering.

I'm just wondering, because:

In the 8880 the connection between the rim and the drive train is contructed out of the

2999 Technic Large Wheel Hub & 2907 Technic Ball with Grooves. This Connection is flexible in all directions including rotation of the drivetrain.

In the parts available in LDD the connection between the rim and the drive train is constructed out of the

92909 3 Snap GearBlok & 32494 LT Cardan Ball

... and I'm wondering (because of that T-Struts mounted to the ball head of the 32494 - needed as gear for rotation) if this technical solution is

similarly flexible as the old technical solution from the 8880. I don't own the new parts - so I don't know better.

But the more I look at the new parts there is a feeling that I miss something. Maybe I'm wrong and both solutions are technically the same.

Are they?

Here's a picture I made

The connection is already bend (red line)

The car is actually driving - so we have rotation (blue)

And now I steer to the left or right (green / green dot)

Possible ?

Edited February 12, 201510 yr by HAL9000

You have the correct concept/understanding in your sketch. Both solutions are exactly the same (from the kinematics). In fact, the two assemblies below have exactly the same functionality

+ + = + +

The parts are almost a one-to-one match (from the kinematics/function). If this answers your question fine, otherwise and if I misunderstood the question, ask again.

=

=

=

Edited February 12, 201510 yr by DrJB

Hi DrJB. This answers my question. Thank you.

Now I can proceed building in LDD without the doubts I had before.

Best regards HAL