Technic 2017 Set Discussion

[VaderFan2187]

25 minutes ago, Clx_45 said:

I might be late but did anyone see this?

 

Yep, brickset reviewed it.

[Clx_45]

1 hour ago, VaderFan2187 said:

Yep, brickset reviewed it.

Ok, I just wanted to make sure for those interested in the set

[kuja2015]

That's it guys. Lego is making 40 years, Ferrari is making 70  years.... ??Lets hope for the best

[eliminator]

14 hours ago, kuja2015 said:

That's it guys. Lego is making 40 years, Ferrari is making 70  years.... ??Lets hope for the best

Hopefully something in the works, but with the creator F40 10248 set still out I'm not holding my breath. How about an MB SLS Gullwing!

Lets hope that the Porsche is the first in a series of "Technic UCS" models....

 

[paul_delahaye]

Yes, that stunt bike ramp is a bit lame, it bends under the weight of the bike.  That definately looks like a last minute afterthought.

[Kmuffin]

If its gonna be a merc I'm guessing an Amg gt or gtr. The sls Amg gullwing would be a bit too old. The chance there will be a Mercedes car is quite low

[Vectormatic]

On 04/12/2016 at 0:54 PM, kuja2015 said:

That's it guys. Lego is making 40 years, Ferrari is making 70  years.... ??Lets hope for the best

Oh god yes, i have the enzo and 599 from a decade ago, but a proper full featured technic ferrari... 

[AVCampos]

Returning to the sets' discussion... It appears that the B-model of the 42065 has rocker bogies for four of its road wheels (one bogie per track), which should make it as interesting to build as the A-model. However, given that it has a higher centre of gravity (taller tracks and body), it should topple over more easily than the A-model during sudden accelerations and stops... unless the set includes gears specifically for the B-model, to reduce speed and increase stability and power.

[Kmuffin]

50 minutes ago, AVCampos said:

Returning to the sets' discussion... It appears that the B-model of the 42065 has rocker bogies for four of its road wheels (one bogie per track), which should make it as interesting to build as the A-model. However, given that it has a higher centre of gravity (taller tracks and body), it should topple over more easily than the A-model during sudden accelerations and stops... unless the set includes gears specifically for the B-model, to reduce speed and increase stability and power.

You do have a point. The chance of it to topple is very high but there is quite a low chance that lego could include gears for it. Fingers crossed for it having gears specially for the b model

[Saberwing40k]

Sorry fellas, but you're wrong on both counts. The 42065 B  model has no suspension, the front bogies are fixed in place, and it can be clearly seen in the images of it that the tracks are directly driven, like the A model.

[Ngoc Nguyen]

What suspension bogie? What gear?

 

[AVCampos]

Thanks for those images, I hadn't seen them yet.

There's definitely a rocker bogie on each track, made by having the lime 3x5 beam (which holds two sets of road wheels) attached to the main frame using only a single pin. The strange part is that the black beam, to which the lime one is connected, also appears to be attached with a single pin...

As for gearing, unfortunately I now see there is none, like on the A-model. This will surely hurt stability when starting/stopping.

[Ngoc Nguyen]

9 minutes ago, AVCampos said:

There's definitely a rocker bogie on each track, made by having the lime 3x5 beam (which holds two sets of road wheels) attached to the main frame using only a single pin.

Those 3x5 lime beams have 2 attachment points: 1 to the diagonal 5L beam, 1 to a vertical 3x5 lime beam. So the structure is fixed and rigid.

[Banana92]

2 hours ago, Kmuffin said:

You do have a point. The chance of it to topple is very high but there is quite a low chance that lego could include gears for it. Fingers crossed for it having gears specially for the b model

they could just rearrange the gear train to change the speed to torque ratio... if it had gears

16 minutes ago, AVCampos said:

Thanks for those images, I hadn't seen them yet.

There's definitely a rocker bogie on each track, made by having the lime 3x5 beam (which holds two sets of road wheels) attached to the main frame using only a single pin. The strange part is that the black beam, to which the lime one is connected, also appears to be attached with a single pin...

As for gearing, unfortunately I now see there is none, like on the A-model. This will surely hurt stability when starting/stopping.

The 3x5 beam seems to also be connected to a fixed point via the blue pin the the middle creating a rigid triangle.

Edited December 5, 2016 by Banana92

[AVCampos]

1 hour ago, nguyengiangoc said:

Those 3x5 lime beams have 2 attachment points: 1 to the diagonal 5L beam, 1 to a vertical 3x5 lime beam. So the structure is fixed and rigid.

I see what you mean. It's a shame, though, as a rocking bogie wouldn't appear difficult to make.

Still, at least the B-model is a complete rebuild, not just a variation of the body (hello 9398) or attachment (hello 8110 and 42054).

1 hour ago, Banana92 said:

they could just rearrange the gear train to change the speed to torque ratio...

In this case it's not possible, as the motors drive the tracks directly and the set only includes one size of track sprocket. The only thing that can be done is to change the track geometry (which was done), but that doesn't change its speed relative to the motor.

[N-4K0]

Correct me if I'm wrong, but to me it looks like both 5L liftarms holding each bogie arm is attached at only 1 point in both ends, meaning it could/should have some degree of movement either way.

[Banana92]

1 minute ago, Error404 said:

Correct me if I'm wrong, but to me it looks like both 5L liftarms holding each bogie arm is attached at only 1 point in both ends, meaning it could/should have some degree of movement either way.

It looks as though only the black liftarm is a 5L while the lime green ones are all 3x5 L shaped liftarms

[N-4K0]

Oh, I see it now, indeed it is fixed in place. My bad.

It should be easily modified though, I'd think. Perhaps shock absorbers with soft springs could be used.

[lee82gx]

All h1 2017 sets are on the shelves in Lego stores in Tokyo. 

[Kmuffin]

With the addition to the cabin being in the front I think it will increase more toppling.

3 hours ago, Error404 said:

Oh, I see it now, indeed it is fixed in place. My bad.

It should be easily modified though, I'd think. Perhaps shock absorbers with soft springs could be used.

That is quite a good idea. Perhaps I will do it after its released.

[Gnac]

58 minutes ago, Kmuffin said:

With the addition to the cabin being in the front I think it will increase more toppling.

I think it'll be fine; consider the central location of the batterybox, and how the weight of a fully laden AA batterybox is good enough to counterbalance the superstructure on a mobile crane model. When I made a 42009 run off a LiPo batterybox, I had to use two boat weights to restore the counterbalancing effect that I had previously taken for granted.

Edited December 6, 2016 by Gnac
distinctions of deh different battery bocks

[AVCampos]

11 hours ago, Error404 said:

It should be easily modified though, I'd think. Perhaps shock absorbers with soft springs could be used.

It shouldn't be too hard to attach the lime L-beam (to which the two road wheels are connected) to a single point of articulation, centred on its "corner" pinhole. That way, the two wheels balance each other out, like the pendular axles on the 8284 and the 42030, and no springs would be needed.

[Kmuffin]

7 hours ago, Gnac said:

I think it'll be fine; consider the central location of the batterybox, and how the weight of a fully laden AA batterybox is good enough to counterbalance the superstructure on a mobile crane model. When I made a 42009 run off a LiPo batterybox, I had to use two boat weights to restore the counterbalancing effect that I had previously taken for granted.

 LiPo batteries big and heavy but I haven't tried it in Lego. I'm pretty surprised about the counterbalancing. Plus I noticed the receiver is also situated on the cabin but since it doesn't weigh much, which makes me agree with your explanation. 

[AVCampos]

1 minute ago, Kmuffin said:

 LiPo batteries big and heavy but I haven't tried it in Lego.

Actually, lithium batteries (Li-Ion and LiPo) are a lot lighter than NiCd or NiMH batteries of equivalent capacity, that's why they're the only choice for RC aircraft: just compare the weight of a PF rechargeable battery vs. a loaded PF AAA battery box. If the battery box of the 42065-B is located sufficiently towards the rear, it might counterbalance the cabin and the IR receiver. Still, it'll always be more wobbly than the A-model, which is longer and has a lower centre of gravity.

What I'm concluding from this discussion is that, despite the fact that the 42065 is technically an extremely simplistic set (little more than a PF RC parts pack), it's good food for thought regarding the design of tracked vehicles. And, considering the Technic mission of teaching about and stimulating interest in mechanics, that's a good thing.

[Kmuffin]

3 hours ago, AVCampos said:

Actually, lithium batteries (Li-Ion and LiPo) are a lot lighter than NiCd or NiMH batteries of equivalent capacity, that's why they're the only choice for RC aircraft: just compare the weight of a PF rechargeable battery vs. a loaded PF AAA battery box. If the battery box of the 42065-B is located sufficiently towards the rear, it might counterbalance the cabin and the IR receiver. Still, it'll always be more wobbly than the A-model, which is longer and has a lower centre of gravity.

What I'm concluding from this discussion is that, despite the fact that the 42065 is technically an extremely simplistic set (little more than a PF RC parts pack), it's good food for thought regarding the design of tracked vehicles. And, considering the Technic mission of teaching about and stimulating interest in mechanics, that's a good thing.

Sorry for my misuderstanding i forgot that some rechargable AAA and AA size batteries are lithium ion. I was talking about the LiPo batteries which are a quiteb ig in size.

The 42065 is the first tracked rc lego has ever prouduced for my thoughts. Im expecting to buy it cause I have few rc parts. Plus it has more black tracks which were only included in 42038 so far which i have.