Project Logs

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• Metal body - update in progress

  Tanguy • 07/18/2026 at 17:19 • 0 comments

• A bit of spoil, for the next mechanical upgrade

  Tanguy • 06/08/2026 at 14:53 • 0 comments

  A bit of spoil, for the next mechanical upgrade.
  Butter (the robot) will receive new metal parts for its more sensitive components, such as the body and shoulders. The current plastic parts are under high stress (supporting the whole weight of the body + arms + head). And the faster I make him move, the more afraid I am that he'll break.
  
  Those metal parts will also allow me to simplify a lot the other plastic parts and make them easy to print.
  
  

• Self-presentation of the robot

  Tanguy • 06/02/2026 at 20:00 • 0 comments

  I thought it could be fun to make him introduce himself.  
  Voice is in French, but I have set English subtitles.

• Last version of the robot doing some moves

  Tanguy • 06/02/2026 at 18:02 • 0 comments

  Demo of the robot doing some moves after last mechanical upgrade.
  

• Better IK & control UI

  Tanguy • 05/14/2026 at 12:55 • 0 comments

  I have (as always) forgotten to post a lot of things, but the robot project is going great, here are some news, more coming soon ;)
  

• Body motion & arm IK

  Tanguy • 12/16/2025 at 10:16 • 0 comments

  I have made great progress this last week: added body joints (2 DoF) and articulated ears (2 DoF each) to display emotion and make it more expressive.

  In total, robot now has 17 DoF: body 2, neck 3, ears 2 × 2, arms 5 × 2. I had to upgrade the power supply to manage that.

  On the software side, the arm IK is starting to give promising results (it can move the arm just by using x, y, z coordinates).

• Arm Movement and Strange Eyes

  Tanguy • 07/21/2025 at 10:34 • 0 comments

• New build !

  Tanguy • 06/24/2025 at 09:46 • 0 comments

• New Shoulder Design

  Tanguy • 06/20/2025 at 01:43 • 0 comments

  After some testing, I wasn't satisfied with the range of motion of the current shoulder (couldn't lift the arm high enough). So, I reworked the 3D design. Here's what the new version looks like.
  
  I also embedded more bearings into the 3D-printed parts, to better support weight.
  
  

• It now has a head! (Kinda.)

  Tanguy • 06/04/2025 at 09:08 • 0 comments

  In the past, I’ve created a variant of this robot head project: https://hackaday.io/project/185066-robot-buddy. Instead of using an LED matrix, it uses an old phone as the display.

  So I've added it to this robot.

  (I plan to open-source the “face” app, but it needs a lot of cleanup first.)

  
  
  
  

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