The script has been added with the ability to do the following 1. generate geometry boundary whose center is x=3, y=3 (the geometry is currently set to circle) 2. a circle of radius = 10 is plotted on a graph 3. the location of the pen is plotted on top […]
To better understand the material properties of a potential cable choice, 5 samples of 50 pound weight nylon fishing line were loaded into the mechanical engineering lab’s Instron 5569A (Kindly donated by Instron, thanks guys!!). The 5 samples were subjected to an increasing load of 100 Newtons per minute until failure. […]
To test the current sensor an arduino, a multi-meter and a current source was used. To calibrate, the offset and the gain was first configured. With no current on the sense lines, the Vref was adjusted to read about 2.5V (actual valued used was 2.52V) on the sensor output line. A known […]
During routine testing of the design, we noticed that the knot tied at the end of the fishing line to secure the line to the spool dug into the plastic of the spool, causing minor damage. We’ve solve this problem by ending the string around a washer.
We’ve competed assembly on one of the three Motor and Spool Sub-assemblies and we’ve discovered a few problems in the design. 1) The set screws are not holding onto the main shaft and are likely to be striped since the thread are made of plastic. Solution: Drive a pin […]
A load of 30 pounds (133.4 N) was applied 5 times on a 1/32” wire found in the lab producing the results below. Assuming these random variations are in a Gaussian destitution, we are 95% confident that Young’s Modules is between 59758.2 MPa and 60299.1 MPa.
