W-10
The case has been refined and the problems have been fixed, the strap is done and just needs some fine adjustments, everything fits in the case, and it functions.
Here is the final case model and how it compares to the rest of the iterations.
This final case had a lot of fine tuning done to it, and unfortunately I forgot to grab screenshots of the model as these modifications were being made. Here were some of the more notable changes:
The walls were too thin for any meaningful screws, so they were increased to accommodate M1.4 screws.
The Trinket collided with the main body of the switch. The walls had to be expanded a little bit to move the switch away from it.
Minor adjustments to allow for wires
Some of the problems that existed with the case previously were that there wasn’t any accounting for the switch yet and there wasn’t any planning for how to route the motor wires. The former was resolved by putting the switch all the way at the bottom of the case and recessing it into the wall. In order to keep it from moving around, two brackets were made on the floor of the case and a part of the cap was extruded to hold it in place vertically.
As for how the motor wires were addressed, two little mouse holes were made in each side at the bottom of the case so that the wires could appear outside the case as close to the strap as possible. This does result in exposed wires, but that isn’t something I’m too concerned about at this time. Once the strap is sewn onto the case, the motor just gets threaded through a slot in the strap and it’s hidden away from view.
The current strap material was chosen just because it can be easily made to fit the case and it looked the nicest when sewn, despite my bad hand sewing skills. I’m still on the look out for alternative materials because I know the gear pattern might not be for everybody. I personally like it, though.
That all said, how does it fit?
Pretty well. The right motor needs to have the wires lengthened a little bit to have full contact with the wrist, but other than that it fits very well. It fits Brandon Noirot beautifully.
So all that’s left is to user test and make small adjustments like fixing that the PCB shield is backwards. Next week I will be able to have it tested by a therapist as well.
Goals accomplished from last week:
Continued case refinement
Conducted some testing
Next week:
User testing
Small fixes
