General Part Discussion

[Ngoc Nguyen]

18z and 14z gears coming woohooo

[aeh5040]

19 minutes ago, Ngoc Nguyen said:

18z and 14z gears coming woohooo

Not convinced but I hope you're right!! 

5 new gears in one year would be extraordinary!

Edited June 18 by aeh5040

[dhc6twinotter]

I think that gear is a recolored 12T gear.   Maybe new 14T gear, but I dunno. Maybe I'm wrong.  [EDIT:] The more I look at it, the more I think it might, indeed, be two new gears.

RacingBricks video has a pretty clear shot of a gearbox prototype.  Looks like each drum is only used to engage one gear, except one of the center drums engages two gears.  I'm not sure what that 2nd gear would be used for, except maybe reverse, but I think R-N-D is selected with the gearshift between the seats.  There appears to be two new DBG sequencer piece as well.

Edited June 18 by dhc6twinotter

[Stereo]

Looking at the prototypes I think they originally had something more complicated with 3 types of shift drum in order to use existing gear ratios.  Also the two sides' drums are engaged 1:1 using knob gears, and the shift indicator print is evenly spaced on that same axle so it's some pattern of 9 positions directly encoded by the drums (one every 40 degrees).  By adding a ratio between 16:16 and 20:12 they can run a simpler pattern, I think the drums still need a weird axle offset, which now that I'm looking for it, the yellow axle connectors on the yellow drum side do look to be different after passing through 2 yellow drums.

Edited June 18 by Stereo

[1nterstellar]

 Is this a new part from RacingBrick video? Something like 9 positional stepper gear. Used in GWP.

[efferman]

3 hours ago, Ngoc Nguyen said:

18z and 14z gears coming woohooo

Ok, they were faster than me when this is correct.

[aeh5040]

1 hour ago, 1nterstellar said:

 Is this a new part from RacingBrick video? Something like 9 positional stepper gear. Used in GWP.

Nice find! If it's in the GWP then surely it must be in the set too.

[R0Sch]

The 2 new gears w/ clutch: red 8T and orange 18T plus the white 14T gear are indeed very cool. Same goes for that 9T stepper gear that appears 3 times in the Megacar as well.


Also 2 new shock absorbers, 6L and 13L (thought only 13 is new):

Wishbones already mentioned.

Edited June 18 by R0Sch

[aeh5040]

OK, you folks were right. Woohoo!

[SNIPE]

Day 1 buy for me :D

New gears new shocks new shifter elements new love

I'm surprised the gearbox is still so big though! it goes in front of and behind the rear axle. Considering we have more.compact 8 speed gearboxes in MOCs

Edited June 18 by SNIPE

[aeh5040]

So if I'm understanding it right, the red selector cylinders only go to one side of centre, not both sides. At least in the WIP pictures, they are always paired with one clutch type gear and one ordinary one.

Edit: maybe same applies for the yellow ones.

Edited June 18 by aeh5040

[SNIPE]

Anyone noticed the darker gray looking knob wheel opposite the gear indicator is not in the same rotation as the LBG 45 degree knob wheel, but its also not at 90 degree increments either 

Edited June 18 by SNIPE

[R0Sch]

30 minutes ago, aeh5040 said:

So if I'm understanding it right, the red selector cylinders only go to one side of centre, not both sides. At least in the WIP pictures, they are always paired with one clutch type gear and one ordinary one.

Edit: maybe same applies for the yellow ones.

Yes, red shift drum has like 270° center groove and 90° right, yellow ones have in 90° increments right-center-left-center.

That's a lot of new parts for one set. Confirmation that the two-piece wheel hubs are also new.

19 minutes ago, SNIPE said:

Anyone noticed the darker gray looking knob wheel opposite the gear indicator is not in the same rotation as the LBG 45 degree knob wheel, but its also not at 90 degree increments either 

Those are all lbg and not on the same axle. Shadows make them look darker. They are the regular 45° knob gears. But notice the stepper gear is dual molded and 1/9 tooth is yellow?

[gyenesvi]

Those new gears are really exciting! I'm just building an RC model, where I'm struggling with the right gear ratio, and I just figured that a 14:18 would solve my problems perfectly, and then boom! there it is.. almost, since the 18T gear is a free spinning one with clutch, so we cannot yet use it in a regular gear train, but I really hope that a regular 18T will also appear soon! Those 6L springs are interesting too, though I guess they are probably quite stiff ones.

[2GodBDGlory]

1 hour ago, R0Sch said:

But notice the stepper gear is dual molded and 1/9 tooth is yellow?

The color change initially had me wondering if it would have a freewheeling mechanism like the one from the bicycle, but I don't think so anymore. I guess dual molding was just the only way they could think of to make it extremely obvious how to align the teeth when building it?

3 minutes ago, gyenesvi said:

Those new gears are really exciting! I'm just building an RC model, where I'm struggling with the right gear ratio, and I just figured that a 14:18 would solve my problems perfectly, and then boom! there it is.. almost, since the 18T gear is a free spinning one with clutch, so we cannot yet use it in a regular gear train, but I really hope that a regular 18T will also appear soon! Those 6L springs are interesting too, though I guess they are probably quite stiff ones.

Yeah, I'm definitely hoping for a normal 18T somewhere in this set, or if not somewhere else soon!

[Ngoc Nguyen]

On another note, the new ratchet gear from the Bicycle set has already made another appearance. It is used as a compact escapement mechanism in the Pinball Machine to move the progress indicator forward.

[ord]

Technic fans are getting spoilt with new parts lately! 

I wasn't sure about the introduction of gears with teeth not multiples of 4 at first, but in reality it probably doesn't matter so much...

Looking at the 14z gear, could a combination with an 8z open up the elusive 1 stud horizontal 1 stud vertical offset? By my calculations it would be about 0.3mm loose... Maybe ok under light loads?

[Auroralampinen]

The 42232 has brand new 5L long CV joints in orange:). 

Edit or it might not be new piece. The other side seems to be regular Dark Bluish Gray CV joint. 

Edited June 19 by Auroralampinen

[aeh5040]

4 hours ago, ord said:

Technic fans are getting spoilt with new parts lately! 

I wasn't sure about the introduction of gears with teeth not multiples of 4 at first, but in reality it probably doesn't matter so much...

Looking at the 14z gear, could a combination with an 8z open up the elusive 1 stud horizontal 1 stud vertical offset? By my calculations it would be about 0.3mm loose... Maybe ok under light loads?

Indeed, I noticed the same thing. I think the mesh should be fine. 20t to 24t on a 2,2 diagonal works, and that has exactly twice as much extra space.

12 hours ago, R0Sch said:

Yes, red shift drum has like 270° center groove and 90° right, yellow ones have in 90° increments right-center-left-center.

I think the yellow ones must also be one-sided. In the above picture they are linked on the upper side to the new 14t gear (which is not a clutch gear) in one case and an ordinary 16t in the other.

[2GodBDGlory]

5 hours ago, ord said:

Looking at the 14z gear, could a combination with an 8z open up the elusive 1 stud horizontal 1 stud vertical offset? By my calculations it would be about 0.3mm loose... Maybe ok under light loads?

Testing with the classic 4143 14T gears, the mesh seems to work quite smoothly, though I wouldn't trust it for high loads (especially because it's a weak 8T gear meshing with the slight gap)

5 hours ago, Auroralampinen said:

The 42232 has brand new 5L long CV joints in orange:). 

I think you're right! I think I've had situations where those would have been perfect, so I'm glad to see it!

[ord]

1 hour ago, aeh5040 said:

Indeed, I noticed the same thing. I think the mesh should be fine. 20t to 24t on a 2,2 diagonal works, and that has exactly twice as much extra space.

Ah, good observation. Then it should probably work, at least under light loads.

30 minutes ago, 2GodBDGlory said:

Testing with the classic 4143 14T gears

Thanks for testing!

[dhc6twinotter]

16 hours ago, R0Sch said:

Yes, red shift drum has like 270° center groove and 90° right, yellow ones have in 90° increments right-center-left-center.

That's a lot of new parts for one set. Confirmation that the two-piece wheel hubs are also new.

Those are all lbg and not on the same axle. Shadows make them look darker. They are the regular 45° knob gears. But notice the stepper gear is dual molded and 1/9 tooth is yellow?

What's the black piece to the right of the wheel hub?  It looks like the existing "Technic, Axle and Pin Connector Perpendicular Double 4L", but if it's on display with a bunch of other new parts, maybe it's something else? [EDIT:] Nevermind, I think it's the new 8T clutch gear.  Apparently it was originally black before they decided to use red in the model.

 

Edited June 19 by dhc6twinotter

[Bartybum]

Man, it's CRAZY to me how many new moulds they're willing to allocate to the 1:8 cars, and yet apparently it's too much to ask for a new driven steering hub for the Unimog...

Edited June 19 by Bartybum

[HydroWorld Outlook]

56 minutes ago, dhc6twinotter said:

That's a lot of new parts for one set. Confirmation that the two-piece wheel hubs are also new.

This is awesome!!! New large shock absorbers, new wishbone pieces, new two-piece wheel hubs, and a 9-tooth stepper gear—all on top of the Road Bike parts—what more could I ask for (maybe other than new propeller blades)? I hope all these new parts mean TLG has some good surprises up its sleeve for Technic's 50th Anniversary sets next year. 

The unique seven-spoked wheels featured in this set might actually make great watercraft propellers or pump impellers, at least as decoration even if they never necessarily generate any useful thrust when submerged and driven in fluids. Also, that 9-tooth stepper gear is an awfully massive shocker for me—I find it quite surprising that TLG would employ an odd number of teeth.

While the arrival of this new stepper gear piece indicates that proper stepper mechanisms are now finally possible (at last!), the odd tooth count may limit its usefulness for many applications, especially since most gears in the Technic system—and in fact almost all—have an even number of teeth divisible by 2, 4, 6, or 8. A 9-tooth stepper gear would rotate about 40° per tooth. That's 5° short of 45°, which would've been one-eighth of a full rotation, and 50° short of 90°, which would've been a quarter rotation. Unfortunately, that means those who choose to use this gear with a LEGO motor won't really be able to use non-encoded servos not designed for rotational intervals less than 90° or even 45°, at least not without significant down-gearing.

That being said, the new 18-tooth gear has a tooth count that is divisible by 9, as does the existing 36-tooth double-bevel gear, so either could theoretically offset this limitation if used on the same rotating axle that the stepper gear is mounted on, in order to drive another in a geared-down setup. Of course, this is just a mathematical theory that still has yet to be tested.

Edited June 19 by HydroWorld Outlook

[Bartybum]

5 minutes ago, HydroWorld Outlook said:

Also, that 9-tooth stepper gear is an awfully massive shocker for me—I find it quite surprising that TLG would employ an odd number of teeth.

While this new stepper gear piece means that proper stepper mechanisms are now finally possible (at last!)

Technically speaking reliable Technic stepper mechanisms have been possible for well over a decade now. The reason this part likely exists is so that they have an immediate way of having nine gears, since that's how many the gearbox has.