This past week, our group achieved a lot despite not meeting a large amount. Coming into this week, we knew our three manufactured parts had to be completed due to our teams schedule in the upcoming week. The motor lab was also due this past Friday as well creating more work for our team to accomplish.
Despite having a finalized design as of last weekend, some of our team members went to look for scrap pieces of metal, gear and other materials. 1/8" aluminum was purchased as well as UHMW polyethylene (Ultra High Molecular Weight Polyethylene). The aluminum was neccessary for our design, and the UHMW was found for a discounted price, and would work better in certain parts of our machine than the delrin (i.e. motor constraints and to drive the treads).
Our group reserved time for the laserjet early in the week so that we would laser cut our delrin bushings and other delrin pieces as well. Since we needed three different materials and three different processes, we also went to see about the waterjet, to cut out our aluminum parts as well. Using the laser cutter, the pieces neccassary were cut from the delrin sheet. We also cut our our pieces from the 1/8" aluminum, 1/4" aluminum, and UHMW polyethylene. Below are pictures of some of the parts after being cut.
Figure 1: UHMW Ployethylene and 1/8" aluminum cut on Waterjet
Figure 2: 1/4" Aluminum Pieces Cut on Waterjet
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