Hey there, fans of ME 250!
Almost Thanksgiving, and you know what that means, folks--Team 42 has been hard at work designing and machining our contraption as we get closer and closer to the December 10 deadline. This week, we had lots to take care of: the completion of 3 machined parts as well as planning and prep for the MCM demonstration and All Engineering (AE) assignments. It tires us out just thinking about it!
For our 3 machined parts, we chose our axles (because we have different types for the front and rear they counted as 2 parts) and our wooden cart base. The base was machined using the laser cutter, while the axles were fabricated using turning and band sawing methods. All the parts came out well and within our specified tolerances, and we were really happy with the end result. Stay tuned for some sweet photos once we get the whole MCM assembled for this week--we wouldn't want to ruin the surprise!
In addition to working on the physical construction of our MCM, we've also begun designing our other module--the cart arm--this week. We plan to use PVC piping to create an outer and inner arm which can then be controlled using the winch attached to a planetary gearbox. The other planetary gearbox will be used to drive the arm itself, which will rotate on a "square axle" (it's awesome, we promise). As can be seen in Figure 1 below, we've slightly reworked and expanded upon our original proposed design, but we're confident that all of these changes will ultimately be for the better.
So, fans, after our presentations on Tuesday it looks like we'll have a few days off, with the Design Expo just on the horizon. YES WE CAN.
That's all for now... safe travels and catch you on the flip side!
-Team 42
Figure 1: Re-working of arm mechanism for "All Engineering" assignment.
Figure 2: Adam works to keep the motor parts in order while assembling the second planetary gearbox.
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