Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [mechanical]

The tag has no usage guidance.

4
votes
0answers
80 views

String thickness comparison

I am currently working on a project which uses a massive array of strings linking little levers. I am currently using the "thin" type string as it is the only type I have, but I am running into ...
11
votes
1answer
162 views

High Torque Subtractors

I would like to use a subtractor in my next RC LEGO tank, as it enables the vehicle to turn on the move, as opposed to stopping and then turning. Unfortunately, the subtractors I have tested so far ...
7
votes
2answers
114 views

How do you make a triggered counted ball drop?

Is there any solution on making a drop of a counted number of balls when one ball passes through the system? For example: One ball falls into a hole on the top and ten balls (plus/minus (not ...
7
votes
2answers
427 views

Difference between Linear Actuator vs. Linear Actuator Mini

I'd like to know the difference in terms of usage between the standard Linear Actuator: vs. the "mini" version: Both of these parts provide the really fun mechanic of translating rotational energy ...
5
votes
3answers
454 views

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

I have seen many papers on logic gates built with LEGO, but I want to make a decimal to binary converter. There should be a counter as an input, with each press of the counter, the output 8 block ...
7
votes
1answer
225 views

How much tension can I expect to get out of a lego chain before it starts to give away?

Assuming I am using the technic chain links to make a chain, how much force can I expect to be able to get out of the chain before it breaks? Suppose I am using a 16t gear to directly drive a 24t ...
2
votes
2answers
1k views

How to design ackermann steering with lego wheel bearing front?

I wanted to use a steering system based on the 11949 part: But I am not sure how to use it in an ackermann system - I would like to be able to have drive and suspension on the wheel, and this piece ...
5
votes
2answers
779 views

Two-state clicker button

For no particular good reason, I think it would be interesting to build a Lego button that behaves somewhat like the button on a click pen: as you press it, it alternates between a "down" state and an ...
14
votes
1answer
2k views

How can I make a precise one-way clutch using Technic elements?

I need a mechanism so that if a (NXT) motor rotates forward, it moves one gear, but the other stays still, but if it rotates backwards, the first gear does not move, but the second one does. I found ...
7
votes
2answers
2k views

How make a 6x6 board rotate using LEGO technic parts?

Are there any common patterns for making a 6x6 (or bigger) LEGO board have a ability to rotate using technic with gears and such? Has to be without the help of the existing 2x2 lego part that rotates, ...