Work Night 1.17.19

Work Night

Date: 1.17.19
Location: Logan HS
Time: 4:30-7:00 PM
Students:
Goal:

The La Crosse Tribune called earlier in the week and asked if they could come in a see how the work is progressing on the project. We set up a time for them to come in during our work night. Students were interview on how the project is progressing.  A link is provided below if you want to view the article that was placed in the La Crosse Tribune on 1.19.19.

Alex worked on the rectifier circuit to get it off the breadboard and onto a circuit board we could solder the components on. The capacitors are large enough that we need to use some silicone caulk to adhere them to the board so they will not vibrate with the impact/heel strike of the foot. We also needed to keep about 1/2" of the lead exposed so they don't heat up too much. Alex got everything on the board. When Mr. Foye inspected it, the circuit needed to be changed so Alex has more work to do.

Avery and Austin worked on the Bluetooth voltmeter and tested the Android development App. They needed to get some new software downloaded onto the school computer for them to move forward. This we actually  downloaded the next day by the Techs.

Paige worked on envelopes/letter and business contacts for our Mid Grant Technical Review.

Seth tested the new Mark 7 Generator housing that we printed with a "sparce" setting in the 3D printer to speed up the time it takes to print and save on material. This did prove faster but the structural integrity of the model is very weak. Our final prototype will need to be printed at regular speed.

Thomas worked on the voltage simulation to we could determine which motors we need to purchase. He lost a file which took about 1/2 hour to find. He still needs more data and we will have to run the limb tester set up to a oscope to get some more voltage and current readings.

La Crosse Tribune article 1.19.19

https://lacrossetribune.com/news/local/education/la-crosse-logan-high-school
-inventeam-developing-major-advancement-for/article_8b02e99d-a25a-527d-b797-
e116fd8429ab.html

Seth putting together the Mark 7 to check the fit of the motors and gears.

Seth made a new heel adapter linkage with rounded corners. We broke this on pretty quick and need to determine if it is a design our material issue.

Mark 7 Generator Housing with support material still in hot off the 3D Printer.

Mark 7 generator housing on a prosthetic limb. This will allow us to mount 2 motors to double our electrical output.

Alex setting up the charging circuit. We are getting a lot of use out of the oscope donated to us through the La Crosse Public Education Foundation last year.

Avery and Caitlin working on programming.

Avery and Alex working on soldering the rectifier circuit. It seem Avery is always eating???

Thomas working on the motor voltage simulation.