Week 3 post April 14-20

Figure 1: BVertol Ofsprey

 We created a Cad model that can be cut out by a laser cutting in machine which cuts foam.  We will either have the body laser cut or hand cut it ourselves.  We have also created a 3 dimensional version in Creo Parametrics.  This will serve as a useful reference when creating the plane in order to give a general idea of where everything goes.  These models will hopefully help us put the plane together once all the parts come in.  They are all ordered and will hopefully be in by next week. 

Figure 2: Creo Model of Airplane

Figure 3: Creo Model of Airplane

 In Figure 2 and figure 3, a model was created in Creo Parametrics 1.0 to give a rough 3-D sketch of the airplane.  It does not have its propellers or motors on it yet as they are still being worked on.  Figure 4 is a CAD drawing which can be read by a laser foam cutter that can be used to cut the plane out without and human work.  These drawings will prove to be valuable as the team receives all the materials and can begin fabrication.
   The team also did research to find out all the required materials and found that they would need the following; Propellers - provides thrust required to move the airplane Propeller Adapters - fastens propellers to the motor Carbon Fiber Rod - gives strength to the airplane's wings Foam - the substance the airplane is composed of Battery - a source of power for all electronics Servos - provide movement to all control surfaces Motors - provide thrust to give the airplane flight Electronic speed controllers(ESC's) - regulates the motor's electricity consumption 3-Axis flight stabilizer - stabilizes the airplane's movement while hovering.

Figure 4: CAD model for laser cutting

These parts were all ordered from  hobbyking.com and valuehobby.com.  The total cost came to $130 split between the five members.  This is all the research and work that was performed with week and the group hopes to start building next week.