Answers.Body: <p>It's difficult, but not impossible. A rigid axle turning at the centre would be mechanically simpler. As my crude drawing illustrates;
  I would place a 24-tooth gear over the <a href="http://www.bricklink.com/catalogItem.asp?P=30157" rel="noreferrer">2x4 wheel axle</a>. A 8-tooth gear is optional but will provide finer control over the steering. The two teeth gears can also be replaced with a pulley gear.</p>
  
  <p><img src="https://i.sstatic.net/wKzsI.jpg" alt="enter image description here"></p>
  
  <p>This technique however will not work with current Lego CITY vehicals unless the wheel arch is removed or replaced.</p>
  
  <p><img src="https://i.sstatic.net/j2ZgT.png" alt="Wheel arch"></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-09-06T11:38:46.830Z
Answers.Text: So the wheel axel where the gears are connected would not be connected to the frame of the vehicle? In other words, the wheels would be connected to the axel, which is connected to the gears? I'm not sure I understand how the movement would work...
Answers.UserDisplayName: Mohamad
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2011-11-03T16:20:21.760Z
Answers.LastActivityDate: 2011-11-03T16:20:21.760Z
Answers.UserDisplayName: Ambo100
Body: <p>I'd like to build city-scale (6 studs wide) motorized vehicles with PF remote control. There are already several suggestions on <a href="https://bricks.stackexchange.com/questions/184/how-can-i-motorize-city-scale-wheels">how to motorize wheels</a>. The next challenge is steering 
   mechanism that can be connected to motor (with gears or by other means). Sure, solution with 2 rotation axes is preferred, but rigid axle turning at center is OK too. </p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2011-11-03T15:48:41.643Z
Comments.Text: That sounds incredibly ambitious. Do you have a model you would like to modify or are you building from scratch?
Comments.UserDisplayName: Ambo100
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2011-11-03T16:11:43.963Z
Comments.Text: @Ambo100 actually I've seen a working model carrying 2 M-motors, train battery box and IR receiver.
Comments.UserDisplayName: Denis Otkidach
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2011-11-03T17:24:08.630Z
Comments.Text: I tried out rack and pinion steering but it didn't work to well for such small scale. It would be around 12 studs including the motor, and another 8 for the back end motor. Wouldn't work unless you had a bus.
Comments.UserDisplayName: Pubby
Tags: <power-functions><vehicle><design><city><steering>
Title: Steering mechanism for City-scale vehicle
UserDisplayName: Denis Otkidach
ThreadText: # Steering mechanism for City-scale vehicle
  
  (Asked by: username_0 on 2011-11-03)
  
  I'd like to build city-scale (6 studs wide) motorized vehicles with PF remote control. There are already several suggestions on [how to motorize wheels](https://bricks.stackexchange.com/questions/184/how-can-i-motorize-city-scale-wheels). The next challenge is steering
  mechanism that can be connected to motor (with gears or by other means). Sure, solution with 2 rotation axes is preferred, but rigid axle turning at center is OK too.
  
  **Tags:** power-functions, vehicle, design, city, steering
  
  > **Comments:**
  > **username_1**: That sounds incredibly ambitious. Do you have a model you would like to modify or are you building from scratch?  
  > **username_0**: @username_1 actually I've seen a working model carrying 2 M-motors, train battery box and IR receiver.  
  > **username_2**: I tried out rack and pinion steering but it didn't work to well for such small scale. It would be around 12 studs including the motor, and another 8 for the back end motor. Wouldn't work unless you had a bus.  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2011-11-03. Score: 11
  
  It's difficult, but not impossible. A rigid axle turning at the centre would be mechanically simpler. As my crude drawing illustrates;
  I would place a 24-tooth gear over the [2x4 wheel axle](http://www.bricklink.com/catalogItem.asp?P=30157). A 8-tooth gear is optional but will provide finer control over the steering. The two teeth gears can also be replaced with a pulley gear.
  
  ![enter image description here](https://i.sstatic.net/wKzsI.jpg)
  
  This technique however will not work with current Lego CITY vehicals unless the wheel arch is removed or replaced.
  
  ![Wheel arch](https://i.sstatic.net/j2ZgT.png)
  
  > **Comments:**
  > **username_3**: So the wheel axel where the gears are connected would not be connected to the frame of the vehicle? In other words, the wheels would be connected to the axel, which is connected to the gears? I'm not sure I understand how the movement would work...  
  
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