david

Celebrating 35 years of international education

Author: david.ding

Create and Improve

 

I have the gears glued on and fitting but because the gears are skewed I can’t put much force into cranking it. I tested it on the thing that measures voltage and I only got 0.6 v maximum. I need 5v in order to charge my phone so I don’t think that it will work. I tried to make a new version but the gears would not stay put so I had to scrap that as well. 

Develop and Plan

I am going to use a motor with gears powered by a fidget spinner or crank that you hand power. Everything would be glued onto a piece of wood which you would carry around. The wires would be attached to the motor, 5v regulator and female USB port.

Engineering Define and Inquire

I am planning on making a portable mechanically charged charger for my phone. It will not necessarily use a hand crank but It will have some form of device to transfer mechanical or kinetic energy into electrical energy. It will have a USB port in order to fit with all phones but the wire connecting it would be separate. This would be convenient always and would always work but it would take a while of cranking it before you get significant charge. So it would only be useful when you have a lot of free time and don’t have any other options to charge with.

Impressive Improvement

Goal: changing notes faster and going up and down scales faster

Music: Minimalist Dances  117-124

Method: Practicing scales for 1-2 hours per week

Read me

Nice

Hello world!

Welcome to ISB Blogs. This is your first post. Edit or delete it, then start blogging!
Please remember that this is an ISB site for your use and you will be held responsible for the content you post.

© 2019 david

Theme by Anders NorenUp ↑