Embedded Files
Designing a Bike Rack
I started this project off with a sketch of the dimensions of the bike rack. I then designed the base path the bike rack takes, using a combination of fillets and lines. After I had the path modeled, I used the sweep tool similarly to how the paperclip in part 1 was designed after creating another circle. After the base design on the bike rack we needed to design was finished, I added large circles for the base to be more similar to an actual bike rack. Below is my final model of the bike rack and the right picture is the drawing of the bike rack
Creating Drawings
To make a drawing, I followed Kevin Kennedy´s tutorial, one of which I had already done. To make a new drawing, use the file dropdown menu, and select new drawing. This is a simple process, and you need to remember to dimension all important parts of the drawing. You can also change the views that are in the drawing, which is important in order for you to dimension the drawing fully.
Designing 1 x 4 Lego
To design this Lego, I began with the body by using the box command and inputting the dimensions of the Lego. After I did the box command, I created the top studs. I did this by making 2 concentric circles, extruding them and using the rectangle pattern command. After I designed the top studs, I used a large circle to cut the big hole through the holw brick, then I rectangular patterned it for the rest of the three circles. Once I did that, I created a midplane between the front and back faces, and extruded it to create the smaller inner circle. I again rectangular patterned this. Once all the holes were finished, I made a shell from the bottom face, which gave me a design very close to the final. Then I created a new sketch on the bottom of the brick with a circle tangent to the studs on the top. I patterned this once again, and extruded it to meet the inner circle. I had to do this for each individual circle, but after I finished the design was exactly like how it worked in the 2d sketch.
Creating an L-shaped Lego
These are all images of the Lego I designed. The image on the top left is the original piece, the image on the bottom left is the final designed piece., and the image below is the 2d drawing of the designed piece. To start, I made circles at each of the major points with diameters of the width of the piece. I connected all the circles, and symmetrically extruded this. I did the same process for the holes as in the previous Lego, but made there one less hole at the top of the L. Once all the holes were created, I started on the gaps between the Legos. I created two circles, and joined them with lines that were a set distance away from the edges. I also then played with the fillet until it looked similar to the original. I cut this through the whole object, and then extruded a small piece symmetrically as well. I did this patterned, except I didn't add the extrude at the top. I then created a new sketch for the cross, which was dimensioned using the edges of the cross to the edges of the piece. I cut this through the whole piece, and then I was finished with it.
Designing Colin's Lego
Colin's Lego was much simpler to design than my own. His was a straight line and didn't have the cross at the end either. I began the same exact way as before, with the circles, and used the same process to cut out the holes, as well as create the gaps between each hole.
Gears tutorial
The tutorial I chose to do was the gears tutorial by Kevin Kennedy. The tutorial can be found here https://www.youtube.com/watch?v=B8A_11o7QZ0. This tutorial walks you through how to use the gear add-in box, which was fairly easy to understand once I got the hang of it. The tutorial also walked through a housing, which was also simple to design, just design two circles larger than the size of the gears. After you design the 2 circles, you join them by using 2 tangent lines. Then you make a small extrusion for the gears to rest on, and extrude a pin that is slightly smaller than the hole in the gears, and do this for both gears. Then I exported the STL into Prusa slicer, sliced it for my ender 3 pro, and printed each part individually.
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