The first design was 3-D printed by the printer form our school. The total print costed us 123 CAD.

The material that was used to print was PC-ABS, which has a decent strength, and also allowed a very accurate print.

We definitely expected some mechanical flaws of our design since this is our first official print, but we faced a lot more failures, probably more than we expected.

First of all, we realized that our finger parts were poorly tolerenced, and poorly mated, but we did not see the flaw until it was printed out.

As you can see, the two holes were supposed to go on top of each other, so that the holes can be threaded through with some screws and bolts, but since the parts were not mated properly, it did not fit at all.

However, we decided to just try building it and see how it looks.

From this

To this

The shape is coming out and we are really liking how its turned out.

So over this week, we are going to print the fixed parts and hopefully can get the hand assembled by Sunday or Monday.

Some other members will be working on the electrical control, specifically the H-Bridge and others will be playing around with the Myo armband and Arduino.