Crutch Updates

Several changes were made to the crutch. An issue that was encountered when assembling was that the method for attaching the leg system to the actual crutch was originally supposed to involve epoxy and a 3D printed part. However, it was determined that this connection would not be sufficiently strong. A mechanical attachment was designed to attach the mechanical support legs system to the rest of the crutch. The plate was screwed into the bottom of the crutch, with nuts securing them on the other side. The remainder of the screws are then used to attach to the mechanical system, via brackets that are attached to the top of the motor housing. This can be seen in the figure below.

Mechanical attachment

The second piece machined was a plate to support the attachment of the buttons. The plate has three holes to allow for buttons to be glued to, as well as screw holes to attach the plate to the crutch itself.

Button holes

The remaining changes made to the crutch involved drilling holes to attach the electronics housing boxes and LEDs. The top electronics box was required to be wider than the inner dimension of the crutch, so the inner tubing was milled.