4/29/2019 Week 4 Update

Lecture day 4/22/2019: Since last week, Benedict gained some insight on what the camera setup will look like and what complications need to be kept in mind. He also developed a two stage code for the image tracking:
1) a .mlx Live MATLAB script is run to determine the pixel diameter of the circle through the function "imdistline"
2) divide found diameter by 2 = radius. Use a range of nearest values of 10.

ex. radius = 84 pix.
[center_magnet_tracking,radius_magnet_tracking]=imfindcircles(I_3,[80,90]

Our goals for this week:

Ryan is working on the 3D model of the platform, motor socket and magnet holder. He will design the bottom end of the setup with the base to hold the magnet holder and the motor. We aim to have 3D printed the motor attachment in the plate holder and the magnet holder by the end of the week.

Joe was having difficulties with the motor movement and controlling it to our needs. Joe is still responsible for the motor control and implementation of the code into MATLAB.

Benedict, while still responsible for the Blog Updates, will obtain a Tier 2 safety training on Monday of Week 5, 4/29/2019. This will enable at least one of the team members to have access to scrap wood and wood working tools (Table saw, Drills, Screw gun, etc.) to build any necessary wood parts. Benedict is responsible to have a safety certification by Week 5.


Lab day 4/24/2019: Ryan got to work on the 3D models of the magnet holder and the motor socket with the table attachment. This model will be 3D-printed and tested. Here is the first version of the 3D model:

Fig. 1 - General View of the 3D-models

Fig. 2 - Frontal View of the 3D-models

The socket for the motor output shaft has the dimensions of 3.1mm X 4.1mm X 6 mm. The group decided to keep the center of the Neodymium magnet and the gel magnet both at a height of 2.5 inches (63.5mm). This is done to avoid the magnet exerting force on three planes rather than on two planes. 

Benedict talked to the shop safety manager about the scrap wood pile and was able to obtain 6 pieces of 30 in long 2x4 lumber and 1 lumber 2x4 over 50 in long. This wood will be used to make the camera stand.