Gizmo the new Robbie

Gizmo is a merger of 3 robots
Bentley a smallish robot
Robbie a big Inmoov style robot
Max a navigation test robot
All 3 had design problems Bentley was too small, Robbie was too big and had trouble navigating around the house and Max was a good size but the drive train was fragile. And last of all 3 robots was just too much. Time for a rethink, so I combined the best features of all. The basic style of Bentley the size of Max and the systems and parts of Robbie.
Gizmo was designed

• to be lifted to a workbench for maintenance
  
• small enough to navigate with low resolution sensors
  
• big enough to hold the components with easy access
  
• 5 hour run time
  
• and not look like a box with appendages
  

The first version was made with tubing to check for fits and clearances

Version 2 was mostly 3D printed and a new drive train using sprocket and chain