Electric Skateboard Project Update 2

Quick update to the skateboard! In an effort to diagnose issues with another project I needed to salvage some known working parts from something and that turned into me pulling all the electronics out of the electric skateboard. After I was finished with the electronics, I decided to put it all back together but as soon as I looked at the old box full of hot glue, pieces of Velcro, and plastic shavings I decided to remake the box. I took another project box, same as before, and began by taking measurements of the box’s wall and also the three bullet connectors on the esc. I went into Fusion360 and made a bracket to hold the connectors on the inside and outside out the box. The inside bracket clamps down onto the bullet connectors locking the in place and preventing them from sliding around when I try to plug them in.

Boca Bearings Workshop Weekly Update 13

This week I worked on the 3D model for my personal project. The pressure vessel at the center of the design is based from the dimensions of the Arduino Uno microcontroller. The groove in the end caps for the O-ring seals was dimensioned around the #144 O-ring see the parker O-ring manual for more detail. To get the U brackets and fins to turn DC moors with 270 rpm will be hooked up from the pressure vessel and connected with a series of rods and universal joints. The rods in the universal joint will be threaded and when the dc motor spins the u bracket will rise or lower on the rod and pivoted about the fin rods. The universal joints compensate for this pivoted so that the U brackets have a full range of motion of 15 degrees.  To seal the rods and stop eater from getting into the pressure vessel 6mm rotary seals are placed into the end cap with the shafts running through it. The drive shaft with the propeller also goes through bearings once they leave the pressure vessel as well as in the back hub. This allows for support of the shafts as well has keeping the rods turning. The Hub was 3D printed and Fins are on the printer.

RC Boat Introduction

I have decided to start on a project to design, fabricate and test a fully functional remote controlled (RC) boat inspired by a 1940’s Chris-Craft. The goal is to be able to remain stable and running for approximately 10 – 15 minutes on a battery pack. This boat will be designed as a semi-displacement hull which will allow it to operate more smoothly at slower speeds. The boat will be engineered with stability and maneuverability in mind. This being said, the boat will be a small scale model of an American classic that can be enjoyed by people of any age, whether it’s enjoyed in a pool, lake or ocean. The motor and other electrical components will be salvaged and modified from a previous RC boat/cars. The hull will be 3D-printed from PLA. Its propulsion will be a single electric motor and propeller that will be directed by a large rudder at the stern. The propeller shaft will be fitted with two small ceramic bearings to insure minimal friction and stress on the electric motor.

Autonomous Submarine Introduction

The objective of this project is to fabricate and test an autonomous scale model of the FAU human powered submarine. That can replicate the course laid out by the International Submarine Race (ISR) and the European International Submarine Races (EISR).