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30

Over the years the LEGO group has made a number of different springs, dampers and suspension components. The most widely known ones are the springs in the 731 series, such as the above mentioned 731c04 (Hard Spring) and its cousins 731c05 (Normal Spring) and 731c06 (Soft Spring), but there are other more specialized springs as well, such as 32181 (which ...


28

As it turns out, the answer is yes! Even though the wings are flat and can't generate much lift, I was able to get up to about 15ft of distance on a 10ft drop. click to watch the video Here's how I did it: First, you're going to need 2 of the set, or at-least two copies of the sails and some common Technic pieces. This is because the sails in the set are two ...


26

A fan is just 1/4 of a drone, right? Check out this lego drone that actually flies, for inspiration. https://youtu.be/wUVvQk7XLd4 The blade part in question is 89509


19

It sounds like you're trying to implement a fairly simple bell mechanism such as this one: You can certainly do this using some string and the pulley element that you mentioned. I'd recommend tying the string to one of the holes in the pulley. Something like this worked reasonably well for me: Here it is in action: You'll likely want to do something to ...


18

With a few Power Functions elements and a pair of propellers, I was able to build a motorized boat similar to the alternate model. 1x: 8881 Power Functions Battery Box 2x: 8883 Power Functions M-Motor 1x: 8884 Power Functions IR Receiver 1x: 8885 Power Functions IR Remote Control 2x: 30332 Propeller 3 Blade 9 Diameter See it in action! click to watch the ...


17

The easiest way to do this would be to use a motor with a high speed (or gear up a lower speed motor) and then attach one of the larger propeller elements to it. You can probably build a custom prop, but it might be challenging to build something with the proper blade angle while keeping it light and strong enough to not break apart when rotating quickly. ...


15

LEGO sets There are more than one set with such characteristics. While first four are from 20th century, I've included them anyway, since they are well-known and include characteristics you are interested in. Let's begin with 8860 - Car Chassis from 1980. This model has steering, 4-cylinder engine, 3 speed transmission, adjustable seats, rear suspension, ...


13

I don't have this set, but used 8421 as a test. This set is also released in 2005. Looking at the PDF you see the same color scheme of the axles, were the black appear to be gray and vice versa When looking at the instruction manual You see the normal colors, so indeed your set came with the normal colors and due to some bad scanning and compression the ...


13

When looking at Blakbird's Technicopedia page for this Technic set, this part is indeed used as a rotary encoder in combination with the bar code scanner. See the last entry on the page.


11

For the axle with stud on one side you could also use a smaller pin connector 18654.


10

The cause is simple. The images are authored in a vector or CAD format. When Lego rendered these vector images to the low resolution images in the PDFs, the thin outlines got turned into lines with a thickness of one pixel. Due to their small yet complex cross-section the axles get mostly covered by their outlines.


10

You can find all of these elements listed on Bricklink under "Technic, Steering" category Assembled combinations are: Technic, Steering Portal Axle, Housing with Dark Bluish Gray Technic, Steering Wheel Hub 3 Pin Round (92908 / 92909) Technic, Steering Axle with 2 Pin Holes and 2 Axle Holes with Dark Bluish Gray Wheel Hub (23801 / 92909) Technic,...


9

Based on 6016457: Right Shell 3X12 W/Bow/Angle 6016465: Circle 90G 6X6 Roof Tile Both in Olive Green This is from 70164-1: Hurricane Heist


8

This is part 11458 Plate, Modified 1 x 2 with Pin Hole on Top. Much easier to find on Bricklink than by scrolling through Pick-a-Brick. Welcome to Bricks.SE!


8

Here are some Ideas i came up with. I added some of your suggestions for comparrison. Mounted on top of the plate: 4032 3941 3713 11458, 32013, 2780 30383, 30553 Mounted below the plate: 40902, 30552 30389b, 30553 32000, 32013, 2780 3701, 32013, 2780


8

It looks like some 44224 Technic, Rotation Joint Disk with Pin Hole and 3L Liftarm Thick and some 44225 Technic, Rotation Joint Disk with Pin and 3L Liftarm Thick - probably two of each, connected by pins.


7

Rebrickable has an option to compare set's main models and some of the B-models as well. However there is no inventory for second model for 8285 set available on Rebrickable. The best I could find is a LDraw file available on Eurobricks. I've imported this file as a custom list on Rebrickable that could be used to compare with sets and MOCs. Imported file ...


7

That is only 1 stud. So an axle of 5 always stick out 4 studs


7

This is a torque-limiting component. When one side is prevented from turning but the other side is forced to turn, the inner piece comes out of its "click location" and into the next one. It requires quite a large torque before it activates. You will not be able to generate the torque just by turning the two components with your bare hands. To see ...


6

You can attach couple of half bushes or full bushes on inner side of the axle near Technic beam like on the other side you have done with a gear. If axle is still trying to slide - fill in the entire inner axle part with bushes. Here is picture of suggested fix. Here you can see extra half bushes added to fix the axle the same way gear fix the other axle ...


6

I see a gap between the grey part and the black part. They should be flush picture 1. Normally it take some force to assemble these hub parts. If you look to the back side of the "back" side you must see the clip of the grey as picture 2. The grey part must rotate freely so if you apply some force to if and have it slow down if its own it must continue ...


6

There are several such MOCs in existence around the Internet: https://rebrickable.com/mocs/MOC-42193/Porlock/fully-rc-lego-technic-doms-dodge-charger-model-42111-with-fast-buggy-motor-lights-and-some-changes/#bi https://rebrickable.com/mocs/MOC-41973/BrickUrDream/dodge-rc-motorized-42111/#bi https://www.youtube.com/watch?v=KmYalpTxmIs https://racingbrick....


6

Motor is only being used to operate the crane, not to drive the model. So driving/pushing shouldn't be blocked at any time. I suspect there will be an issue with position of differential - if placed incorrectly both axles will spin opposite directions. And if placed on the ground the model will simply not move. Check steps 169 and 268 in instructions booklet ...


6

You're in luck! Jason at JK BrickWorks has put his instructions online. There are others I've used; I'll hunt for those links, too. He's made multiple Ideas sets, so this might be how Lego officially makes a marble run set, which would be fantastic. Here we go: I've built Brian Alano's wheel lift and Bryan Bonahoom's stackable lift and enjoyed great success ...


5

That's Container, Throwbot / Slizer 'Flying' Case Lid This item in Purple color was available in two sets.


5

There doesn't seem to be a difference in a shape of triangles (that's how they mention them in the video) seen in Dark Azure as well as Dark Blue colors. However there are two shapes - bigger and smaller triangles. Smaller triangle's edge is half the length of bigger one - you can attach two of these to bigger triangle. Larger one requires parts listed ...


5

Just stumbled across this little gem of a Lego omni wheel!


5

TLG continued to use this technique through at least the mid-90s. The technique appeared in the Cowboy sets 6761: Bandit's Secret Hide-Out and 6765: Gold City Junction to construct turrets.


5

For the first switch I bent the legs of the button and splayed them out just a little bit. Next I stripped off the caps of two Dupont connectors, ran them through the headlight bricks and connected the button upside down. An axle will trigger the button. Either one with a stud on one end (and a 1x1 tile) or a regular one with a half bush. A 2x2 brick on ...


4

I recently noticed that LEGO included guidance on this exact issue in their instructions in the late 80s and early 90s. Here's an example from the 1989 Universal Building Set (8034): Here's the bit referring to disassembling these sorts of elements:


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