Simple Solution to Roomba i7 Charging/Docking Problem

Do you have problems getting your Roomba to dock and charge correctly?  This simple solution may be just what you need. 

I noticed that when we were having issues getting our Roomba to charge, I tried various things.  I cleaned its contacts, checked that the plug was secure, and then I tested how it went on its dock.  It turned out that the solution was to press down on the back of the robot.  When I did so, it charged reliably.  I realized that if I put a sheet of cardboard under the dock, it would raise it enough to do the same thing as pressing down on the back of the robot.   Perhaps the pads on the bottom of the dock wear down over time, or the springs on the charging contacts may also wear out over time, or both.  Either way, adding a couple of millimeters to the bottom of the dock seems to do the trick.  Our Roomba now docks and charges without a problem.

I have included .step, .stl .3mf (XL), and .f3d versions.  

For filament, I used Flexfill TPU 98A, but any 98A TPU or flexible PLA should do. 

For print settings, I used:

• Layer Height = 0.2mm Structural
• Infill = Honeycomb 15%, well, because Hexagons are the Bestagons
• Horizontal Shells (Print Settings → Layers and perimeters →  Horizontal Shells → Solid Layers → ): 
  • Top Layers = 5
  • Bottom Layers = 0

Hope this helps you.  Happy printing.