8 votes
Accepted

Difference between Linear Actuator vs. Linear Actuator Mini

The biggest difference I can think of that would impact my choice would be that the standard linear actuator is much more sturdy. The standard linear actuator has a metal pole and is very rigid. The ...
Alexander O'Mara's user avatar
7 votes
Accepted

Harley Davidson chain belt running jolty

Okay, it seems I indeed made a mistake during building, which I solved afterwards: When assembling the rear mudguard, I noticed that the rear wheel had quite a bit more variability in its sideways ...
Rauy's user avatar
  • 1,297
7 votes

Difference between Linear Actuator vs. Linear Actuator Mini

The large linear actuator extends 5 studs (from 11 retracted to 16 fully extended) The small one extends 3 studs (from 7 retracted to 10 fully extended) That's a large functional difference.
Michael Verschaeve's user avatar
6 votes

How do you make a triggered counted ball drop?

I've seen this done in a GBC module that counts the balls that pass by. It worked with scales that eventually tipped over, each scale representing a decimal of the total number of balls that passed by....
Michael Verschaeve's user avatar
6 votes

High Torque Subtractors

It sounds like you need a stronger differential. Might I suggest this design by Nazgarot: If you make two, you can build a big and sturdy subtractor like this (probably customizing the gear ratios ...
Alexander O'Mara's user avatar
4 votes

Vertical motion for a power burst bar

I've created an initial prototype. I found the "axle with stud 1 x 5" pieces allow me to cross from an axle to a bar type piece such as a fountain.
Monte Gardner's user avatar
4 votes
Accepted

Vertical motion for a power burst bar

I have an idea which was actually from JKbrickworks. Here is the MOC that uses it and here is another MOC of his that uses it. Here it is step-by-step: First, we have a plain old technic brick. Now ...
mindstormsboi's user avatar
3 votes
Accepted

How to design ackermann steering with lego wheel bearing front?

Here is a possible implementation using this exact part: Video . There are also several other solutions with different pieces if you need more inspiration or explanation: Animated GIF, 4 wheel ...
zovits's user avatar
  • 14.7k
2 votes

How do you make a triggered counted ball drop?

I don't know if this is practical, and I can't test it as I don't have enough compatible balls to build GBC type mechanisms, but what comes to mind is: Have the balls run down a trough. The trough ...
Kevin Reid's user avatar
1 vote

Is it possible to build a decimal to binary converter (binary counter) with LEGO?

Yes, of course, you can As jncraton mentioned in a comment: The answer to whether this is possible is definitely "yes". NAND gates can be built, and the required logic can be implemented using ...
chicks's user avatar
  • 5,200
1 vote

How to design ackermann steering with lego wheel bearing front?

In the Ackermann system the lines through the rotating point of the wheel hub and the trackrod joint intersect on the rear axle. This works when the trackrod lenght is shorter than the hub turning ...
Eur van Andel's user avatar

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