Battery Cover for SimpleHuman trash can

thingiverse

This is a replacement battery compartment door for a SimlpleHuman(tm) garbage can with a motion sensor to open the lid. The can uses 4 D cells in two groups of 2. This door will retain two of the batteries. I reused the battery contact spring off of the old door. I had to coax/cut it out of the old lid. It fits nice and snug into this one. I tried to get a "lip" to print as a retainer for the spring, but the feature did not print despite it being in the stl file. The ridges that are present in the medium quality print work nicely to hold the spring in place. Rev2: I modified the design in a few ways: 1) I made the spring a parabola shape. This is much better than the original. It seems like it will last for many uses. I no longer have concerns about brittleness. 2) The lever end is no longer flush with the housing when installed. This gives a nice gap to get hold of the spring end so it is easier to open. 3) The anchor arms are now nicely curved. This is purely aesthetics as the original design worked just fine. 4) I narrowed the "bridge" between the two main discs so it fits in place easier. Print Settings Printer: Dremel 3D20 Rafts: No Supports: No Resolution: 0.2mm Infill: 50% Notes: I built a few supports into the model, as they were needed in a few places. Most are easily snapped off. Two (near the spring) will need to be clipped off with a flush cutter. I designed it in openSCAD and used PLA for the print. As a result, the "spring" is a little on the brittle side.