General Part Discussion

[Cardboy]

What is the free wheel hub like is it a smooth action?

[ord]

Yes it's smooth according to Sariel's video, thankfully (in a previous video it looked like it wasn't). 

 

[Stereo]

The new Mewtwo set has LBG wheel arch extensions, I expect it's 71689 but it might be the smaller ones.

[R0Sch]

9 hours ago, Stereo said:

The new Mewtwo set has LBG wheel arch extensions, I expect it's 71689 but it might be the smaller ones.

Was already mentioned a page earlier.

There is also a new 2x2 plate with 4 half holes on each side in the Pokémon sets. Kinda makes it more versatile to the 2x4 / 2x8 plates with just the holes in the middle.

[SNIPE]

this nice bar with end dome (7768) in black could be used to hide coloured pins etc

AND WE GET DBG HALF BUSHES

 

Edited Saturday at 03:15 AM by SNIPE

[gyenesvi]

11 hours ago, SNIPE said:

this nice bar with end dome (7768) in black could be used to hide coloured pins etc

Unfortunately, it does not seem that much useful for that purpose. You can't push a bar into blue pins, neither into red axle-pins. They only go into the pin end of blue axle-pins, so could only be used when that end is facing outwards.

[howitzer]

Doesn't help with axle-ends either.

[HydroWorld Outlook]

Great news, everyone! New Elementary just posted their full review of the LEGO Icons 11380 Road Bike yesterday, and I'm pleased to share that we've got some new intel on the new Technic parts included in that set. Please see below.

- @ord was absolutely correct. It is now officially confirmed that the new road bike wheels on the inside, when fully assembled, are exactly 23 LEGO units across at the center (7-piece central chord/diameter), 20 units across its 5-piece chord, and 12 units across its 3-piece chord. As such, a completed wheel connects perfectly—via up to twelve 2L beams and connected pins or axle pins—with four 11x11 35T circular gear racks when assembled into a complete annular gear ring, allowing the full 140T annular ring to directly drive the fully-assembled 12-piece wheel rim. A picture shown on New Elementary's website proves this, and therefore, direct drive of a large annular, hubless wheel using the gear rack elements—without all those flimsy, weak 11L offset spoke rods—is now possible.

- Furthermore, the new large single-piece rubber bicycle tires, which are about 33 units in diameter, centrifugally secure the completed 12-piece wheel rim and everything attached or connected within it, meaning we can now build large wheels significantly stronger and sturdier than we could before. If you're looking for giant high-speed Technic road wheels for large models, such as supersized racecars, go-karts, or other models—or perhaps searching for flywheels to power large pneumatic engines, these are your parts!

- In even better news, the new 64-tooth gear meshes perfectly as planet gears within the large 140T annular gear. Two 64t gears can fit within it side-by-side with a central 3-unit separation, driving the large annular gear directly. In theory, this separation also means that a 16-tooth spur gear can act as the sun gear in this setup, resulting in the following possible planetary gear ratios for this specific configuration:

•   9.75 : 1 (Fixed Ring Gear)
•   8.75 : 1 (Fixed Carrier/Planet Gears)
•   1.114 : 1 (Fixed Sun Gear)

As other users have pointed out, this arrangement is still a bit tight, but a half-mm offset can make it work. Occasional light imperfections and/or defects in the surrounding parts, especially slight deformities in the wheel rim elements and surrounding rubber tire, often require a bit more work to make this planetary gear configuration happen, though it is possible. You just have to be very careful with the spacing so as not to grind other gears within the arrangement. Using lubricant on the rotating gear teeth may put you in a better position to use this configuration than doing without. Of course, while New Elementary doesn't show it, other gear combinations may work better for this application as well.

- The new curved Technic elements used to form the road bike's wheels can be used in smaller quantities to form perfect arches.This opens the door for future sets, both inside and outside of the Technic lineup, to take advantage of this capability. Imagine the possibilities! As always, we shouldn't count our chickens before they hatch, but there are so many applications of arches that I am almost certain we will see these parts used again in future sets.

- Lastly, New Elementary discovered something on the new 20T freewheel gear. Like Sariel showed, this gear functions normally when turning clockwise and as a clutch gear when turning counterclockwise. This is echoed in New Elementary's review. However, the internal rachet only has 4 stops, meaning that, when the gear teeth are locked from rotation, an axle can only rotate within the freewheel gear for a quarter turn (90°) before the internal rachet locks it from turning back. Unfortunately, this means that those who seek to drive or otherwise use this gear with any form of electric motor—especially a LEGO one—should beware, because that motor could easily take damage or skip / strip gear teeth, as it would with any other static gear, if it is allowed to backdrive the freewheel gear too far.

I am immensely grateful and excited for these new parts. Hopefully we will see these translated into Technic sets in the coming years.

Edited 6 hours ago by HydroWorld Outlook

[AVCampos]

23 minutes ago, HydroWorld Outlook said:

the new 64-tooth gear meshes perfectly as planet gears within the large 140T annular gear

Actually, while that mesh works, it's a bit too tight and forces the gears.

[HydroWorld Outlook]

1 minute ago, AVCampos said:

Actually, while that mesh works, it's a bit too tight and forces the gears.

It does, though I found that a tiny half-a-mm offset can fix this. It's just kind of tricky.

[Stereo]

If you're building it planetary anyway, you can make the planet carrier smaller with triangles.

Eg. this 3-6-6 liftarm triangle has 4.9 studs width instead of 5 (0.8mm less), and then if you want to continue using 16N+8 gears (8, 24, 40, 64) you can just use beams to make another triangle of whole numbers (marked 4.9-5-5) that would work (I'm using 40t gears as a demo cause studio has them)  I think 140 is in the 8N+4 set so it might just directly go 20-64-140 or something as well.

Edited 5 hours ago by Stereo