General Part Discussion

[gyenesvi]

1 hour ago, Lipko said:

Doesn't it bend more than it twist? Acting as a transverse leaf spring?

Maybe you could bend it in the above form but that can be easily circumvented by adding more support towards the sides, this is just a mockup to illustrate the idea.

[Jurss]

2 hours ago, Jundis said:

but I don't get why the bar need the thin 2L liftarms...

maybe to adjust stifness, make it "softer"

[Mikdun]

18 hours ago, 2GodBDGlory said:

That idea using a driving ring to connect two axle connectors is one I've used on my Ram TRX MOC a while back

This is how I would imagine it should work, as @gyenesvi showed. 

[Bensch55]

4 hours ago, Jundis said:

Nice video, but I don't get why the bar need the thin 2L liftarms...?

Often done to adjust the stiffness as the bar itself is rather short. Sometimes it's also just a case of avoiding any other components of the cars' environment.

[nicjasno]

The thin liftarms are to add stiffness. You can see in real life aswell that the ARB often isn't just a straight bar but is bent in different places, to add torsional rigidity without using a thicker bar.

Edited February 7, 2024 by nicjasno

[SNIPE]

4 hours ago, nicjasno said:

The thin liftarms are to add stiffness. You can see in real life aswell that the ARB often isn't just a straight bar but is bent in different places, to add torsional rigidity without using a thicker bar.

nicjasno back from the dead

[1gor]

Another topic; did anyone of you had situation that red classic diffrrential is some tenths of milimeter smaller than dark bluish gray since it is not rubbibg on 5 x 7 frame in my model (I had the same situation with ordinary 24 tooth gear bought in 2020, and older ones from 42030 set are rubbing on the same construction)

(It is located between two vertical PF L motors and rechargible battery box)

[LvdH]

11 minutes ago, 1gor said:

Another topic; did anyone of you had situation that red classic diffrrential is some tenths of milimeter smaller than dark bluish gray since it is not rubbibg on 5 x 7 frame in my model (I had the same situation with ordinary 24 tooth gear bought in 2020, and older ones from 42030 set are rubbing on the same construction)

Are you sure it’s not just that the frame is turned the other way around? Because I know you can fit 24t and old diffs like that due to the patterns around the pin holes.

[1gor]

12 minutes ago, LvdH said:

Are you sure it’s not just that the frame is turned the other way around? Because I know you can fit 24t and old diffs like that due to the patterns around the pin holes.

Yes, because it doesnt fit slots due to space limitations. Problem is that I can not hold it steady enough with hands when it is rotating turned towards sun to show small gap. I have put some weights and temporary enforcements and indoor conditions are not causing differential rubbing on frame

[Mikdun]

18 hours ago, nicjasno said:

The thin liftarms are to add stiffness. You can see in real life aswell that the ARB often isn't just a straight bar but is bent in different places, to add torsional rigidity without using a thicker bar.

On the contrary. They will add bending to the middle section, while twisting is the ideal mode.

In real life anti roll bars are always "C" shaped (straight will not work unless with additional arms), the wired shape is only to avoid other structures.

See picture from Wikipedia.

[1gor]

18 minutes ago, Mikdun said:

On the contrary. They will add bending to the middle section, while twisting is the ideal mode.

In real life anti roll bars are always "C" shaped (straight will not work unless with additional arms), the wired shape is only to avoid other structures.

See picture from Wikipedia.

 

A little black humor, newer cars bend despite all; instead of sheet metal they use paper 

But there are same solutions ss you posted on trucks and (JCB Fastrac) tractors

Edited February 8, 2024 by 1gor

[Mikdun]

2 hours ago, 1gor said:

A little black humor, newer cars bend despite all; instead of sheet metal they use paper

I got you, back in the old days everything was better. 

Actually old cars were not as stiff as modern ones, but it's getting too much off topic I guess... 

[1gor]

55 minutes ago, Mikdun said:

I got you, back in the old days everything was better. 

Actually old cars were not as stiff as modern ones, but it's getting too much off topic I guess... 

You are probably right, but we could laugh a bit more...

[Aurorasaurus]

12 hours ago, 1gor said:

You are probably right, but we could laugh a bit more...

A little humour never hurt anyone. This world could do with a bit more, go on!

[Jundis]

Is there an upcoming model, where parts 2403 and 2395 in white are expected?

[Ngoc Nguyen]

2 hours ago, Jundis said:

Is there an upcoming model, where parts 2403 and 2395 in white are expected?

 

Probably 42184 Koenigsegg Jesko Absolut White Hyperca

[Jundis]

2 hours ago, Ngoc Nguyen said:

Probably 42184 Koenigsegg Jesko Absolut White Hyperca

Ah yeah, thanks! With my current building speed, this is not a problem :D

[R0Sch]

Oh boy, just saw the McLaren MP4/4 Senna reviews. Those new A-frame pieces with included axles and the 2K-molded wheels are pretty useless outside F1 cars unless you want to make drift cars where you need hard rubber wheels.

[1gor]

@R0Sch can you please share  dimensions of A arm

[R0Sch]

1 minute ago, 1gor said:

@R0Sch can you please share  dimensions of A arm

4x6x1

[gyenesvi]

That means no new 5L steering links :(

Also, it's pretty sad that they have budget for this kind of unique (=not so reusable) A-arm with towball sockets, but they can't make generic technic beams with towball sockets in more sizes.

[1gor]

17 minutes ago, R0Sch said:

 

4x6x1

Thanks; I was hoping for something 4 studs long...

Agree totally with @gyenesvi

[Jundis]

32 minutes ago, R0Sch said:

Those new A-frame pieces ... are pretty useless

Except for a drawbar trailer in micro scale :-)

[R0Sch]

11 minutes ago, 1gor said:

Thanks; I was hoping for something 4 studs long...

Depends which dimensions you mean. The length is 6 the width is 4L.

[1gor]

40 minutes ago, R0Sch said:

Depends which dimensions you mean. The length is 6 the width is 4L.

I need length 4 studs, but i managed (during Covid lock down) to make narrow enough axle using suspension arms from 8297 set...