42139 - All-terrain Vehicle

[R0Sch]

2 minutes ago, Void_S said:

Has anyone noticed the inclined flip-flop liftarm(s) with phone handle parts, placed under the cargo platform, right above the differentials?

Yep. They are probably limiting sideway movement of the suspension since there is no Panhard rod.

[Void_S]

I think I got how the suspension is made here:

• The front one has no questions, I believe - it is a rear axle of Wrangler, with shock absorbers are mounted to the body (fixed points) and to the axle via black 2L liftarms ("earrings").
• The rear axels are similar, but the "earrings" are connected to the upper side of the absorbers.

So, it has all-pendular axles but they oscillate totally independent (to each other) and act as the best possible "true-independent" suspension for a given scale.

 

Edited February 1, 2022 by Void_S
Added the image

[1gor]

That is what I had in mind when I mentioned that front axle is like rear from Jeep and rear is suspended version of 42070 rear axle.

Great illustration @Void_S

[R0Sch]

1 hour ago, Void_S said:

I think I got how the suspension is made here:

• The front one has no questions, I believe - it is a rear axle of Wrangler, with shock absorbers are mounted to the body (fixed points) and to the axle via black 2L liftarms ("earrings").
• The rear axels are similar, but the "earrings" are connected to the upper side of the absorbers.

So, it has all-pendular axles but they oscillate totally independent (to each other) and act as the best possible "true-independent" suspension for a given scale.

You are right on the suspension fixing. I'm nearly finished.

[Void_S]

I think the winch ratchet should be done with axle connector+2L-axle+bush. Your "handle" connector needs something to prevent the bush from sliding down... 

Edited February 1, 2022 by Void_S

[mpj]

The flip-flop liftarm below the rear dump (I don't know how they call it, I mean the black 11 or 15L black beam with alternate holes) is not horizontal but it is placed in an angle, as already mentioned by @Void_S

Edited February 1, 2022 by mpj

[R0Sch]

2 hours ago, Void_S said:

I think the winch ratchet should be done with axle connector+2L-axle+bush. Your "handle" connector needs something to prevent the bush from sliding down... 

It's like I did but there is a yellow half bush with a rubber band under the red bush to keep it in contact for ratcheting (can be seen in official picture below the seat). Also the axle is not red so it must be the connector with axle used in the chainsaw.
 

2 hours ago, mpj said:

The flip-flop liftarm below the rear dump (I don't know how they call it, I mean the black 11 or 15L black beam with alternate holes) is not horizontal but it is placed in an angle, as already mentioned by @Void_S

Yes, I noticed that too. That means the 3rd axle can oscillate more around the drive axle than the 2nd because the telephone handle limiter is lower. Pretty cool feature imo.

[Nazgarot]

Has anyone found out how the winch mechanism works? I've gotten this far in LDD.

A lack of parts and a few other issues have occurred, but I only have the winch spool left to figure out...

_ED_

[R0Sch]

9 hours ago, Nazgarot said:

Has anyone found out how the winch mechanism works? I've gotten this far in LDD.

A lack of parts and a few other issues have occurred, but I only have the winch spool left to figure out...

_ED_

You should try to get used to working in Studio as LDD is pretty much obsolete. Even Studio does not have the latest parts like small Tractor wheels. Plus this tool is so much better than LDD and the renderings and animations capability is a big plus.

But yeah, the winch spool is also the only thing I haven't figured out. The space is pretty limited and I don't see how another pair of bevel gears can fit under the hood and between the shock absorbers.
Here is my Studio file. Maybe someone wants to have another go at this cause I'm exhausted:
42139_ATV.io

[Stephan]

11 hours ago, Nazgarot said:

Has anyone found out how the winch mechanism works? I've gotten this far in LDD.

 

A lack of parts and a few other issues have occurred, but I only have the winch spool left to figure out...

_ED_

In the LDD forum you can download most if not all of the new parts to use in LDD.

[Nazgarot]

I got an ide while looking at new parts. I believe this part is the 5 L black part used on both sides between the front springs. From the Hig res Pics I was quite sure it was not a standard 5 L beam, and even tested half beams and levers to see what it might be. This however fits very well. Will try to figure out the winch mechanism with this tomorrow.

https://www.bricklink.com/v2/catalog/catalogitem.page?P=80286#T=C

PS: I prefer LDD as it is quick and easy to use. More complex builds I always do physically with real bricks, but for quick mockups of solutions or ideas LDD is perfect. I also have imported a lot of newer parts to LDD, it's more on a functionality aspect I find it lacking, like compressing springs etc.

_ED_

[R0Sch]

13 hours ago, Nazgarot said:

I got an ide while looking at new parts. I believe this part is the 5 L black part used on both sides between the front springs. From the Hig res Pics I was quite sure it was not a standard 5 L beam, and even tested half beams and levers to see what it might be. This however fits very well. Will try to figure out the winch mechanism with this tomorrow.

https://www.bricklink.com/v2/catalog/catalogitem.page?P=80286#T=C

Eureka! It's not 80286 but a dbg 99773 thin triangle liftarm combined with a regular thin 5L liftarm. It makes so much sense and fits perfectly between the shocks to enable 2 bevel gears. So I think I finally cracked the mystery of the winch.

[Void_S]

Guys, how great we're not Lepin employees 

[Nazgarot]

On 2/3/2022 at 2:09 PM, R0Sch said:

Eureka! It's not 80286 but a dbg 99773 thin triangle liftarm combined with a regular thin 5L liftarm. It makes so much sense and fits perfectly between the shocks to enable 2 bevel gears. So I think I finally cracked the mystery of the winch.
 

Good work. That fits very well!

But there is something strange with the red pin with axle...

[Celeri]

On 2/3/2022 at 4:21 PM, Void_S said:

Guys, how great we're not Lepin employees 

That is exactly what I was just thinking while reading the preceding posts!

[thekoRngear]

Just saw the gearbox in a closer detail. It is a very simple clever and super safe gearbox which includes 20t blue clutch to 12t for second gear and 16t clutch to16z gear for neutral and first gear. The speed difference between this two gears is sufficiently noticeable. Interesting enough it was shown in the video by Grohl as part of his Lego Technic for Dummies! Youtube series. I used this gearbox for like 5 months on my [then] Defender and it [quite naturally] worked consistently well. Except for C+ vehicles [the Volvo A60H], UCS 1/8 scales and the latest two bikes I dont remember if Lego ever used a transmission gearbox since the Defender 42110 which are function oriented. I am pretty much sure for this tight parts counted medium sized gem it will definitely work Okay.

Edited February 16, 2022 by thekoRngear

[Zerobricks]

1 hour ago, thekoRngear said:

Just saw the gearbox in a closer detail. It is a very simple clever and super safe gearbox which includes 20t blue clutch to 12t for second gear and 16t clutch to16z gear for neutral and first gear. The speed difference between this two gears is sufficiently noticeable. Interesting enough it was shown in the video by Grohl as part of his Lego Technic for Dummies! Youtube series. I used this gearbox for like 5 months on my [then] Defender and it [quite naturally] worked consistently well. Except for C+ vehicles [the Volvo A60H], UCS 1/8 scales and the latest two bikes I dont remember if Lego ever used a transmission gearbox since the Defender 42110 which are function oriented. I am pretty much sure for this tight parts counted medium sized gem it will definitely work Okay.

42094 used the same setup for the winch gearbox:

https://brickset.com/sets/42094-1/Tracked-Loader

[Maaboo the Witch]

Video review, anyone?

 

[Nazgarot]

Thanks for the link! :)

[kbalage]

Here's my review of this great little set that finally brought justice to LEGO gearboxes :)

 

 

[allanp]

Another good review and I agree, I like this set. The gearbox is done right in multiple ways. Not only have they got the gears numbered the right way round but it's also built realistically, with all gears mounted on two parallel shafts and differently sized pairs of gears to achieve the different speeds. Okay, it's only two speeds, and the engine is in the middle of the gearbox, and we saw the same thing to power a winch in a previous set.....for some reason! But this is the first speed transmission gearbox (being used to drive the wheels) that's realistic. The rest of the set is also decently packed with functions and mechanisms. I like it.

[howitzer]

Yep, 1st day buy.

[Jundis]

1 hour ago, kbalage said:

Here's my review of this great little set that finally brought justice to LEGO gearboxes :)

Great review as all times :-)

I completely agree with you on the functionality. This is a real good technic set and perfect combination of form and function.

[Maaboo the Witch]

This is a seriously cool set! It's something that hasn't been done before either so it gets heavy points for that. 

[kbalage]

Based on his comment on my Instagram post the set was apparently designed by Samuel Tacchi, he seems to be the hero who managed to push this gearbox numbering through TLG's approval system :D