Challenge 4 : Concept Modelling of Alloy Wheel

Hello,

This is my report on the following assignment. First starting out with the canvas and aligning it to the center so that better angles and positions are framed for the lines and Cv positions. The work is divided into 5 equal parts as the wheel above is 5 spoke and we can design one spoke and mirror object in the y-axis by selecting 5 body and y-axis rotation to 72°. Then with the circle command creating a circle to define the first shape of the canvas image. Now I used the line tool to create lines with equidistant Cv. Now the layout is completed it projected on the circular surface. Now using the trim tool a portion or shape required is selected and trimmed. Another circle is created this time-shifted towards the negative y-axis in order to create the inner surface. Now the lines are created as required and manipulated through arranging the Cvs. Now it is projected on the surface and the above process is repeated again. Now the two surfaces are to join in G2 curvature. I used FFBLND tool from Surface edit. Checking the span to 1 and every surface is continuous. Now using the extend tool in object edit I elevated the upper surface now the blend curve and lines are projected onto the raised surfaces by using the Project tool. Here the tool selected now asks you to select the surface now the lines and hit enter. Now the excess surface is trimmed out using the trim command. Now the holes for the lugnuts are to be done here a circle command is made and then the circle is projected on the surface below. Now it is trimmed out. Now another circle is added since both the circles now lie in different planes I used FFBNLD to manipulate the surface across two rings. The settings used are default and range modifier turned on. I later used square tool to fill on space and further aligned it to the surface. Now the surface is selected and assigned to new layer this is an extra step I make inorder to work at better efficiency. Now going to layer menu go to symmetry and then select object. Once done switch to toggle mode and wheel is done.