New Year, New Members, and New Projects

Happy very belated New Year! It’s now January and here at MIT that means only one thing: IAP, or Independent Activities Period. IAP is most of January and is a time for students to relax and focus of fun activities, projects, and classes. Some IAP favorites include: mystery hunt, Charm School, and Battlecode. But I’m not here to explain everything there is know about IAP, I’m actually here to talk about the most exciting thing about January: SNNNNNOOOOOOWWWWWWW!!!!!! Oh right also I’m talking about the second most exciting thing about January: Arcturus is back in shop!

Arcturus in Shop

Arcturus is back! She got back to port in late December. Our team Captain, Priya, and a few other team members who got back right at the beginning of IAP made the fun five hour drive to Newark port at 02:00 in the morning to pick our trailer up and bring it back to shop. So now Arcturus is back in shop. The electrical team was able to power her back up after a few days of unpacking and rewiring. This is because many of the connections were disconnected in order to make the battery safe for shipping. Now you may be wondering what our plans are for Arcturus. First of all the electrical team is right now working on debugging the electrical issues Arcturus was having at the end of the 2015 Bridgestone World Solar Challenge. We then plan to in the spring and summer drive Arcturus a lot to gather more data on her performance so we can better optimize a four-wheeled car. In the mean time there are many small projects to be done. Such as my “fake motor” project. We are planning to send our motors back to manufacturer for some maintenance and to prolong their lives. The problem is that our car uses hub motors which removes the need for gears or belts connect the motor and the wheel. However this means that right now without a motor there is no way to attach the rear wheels to the car. So my project is to design a system to attach the spindle and hub that we use on the front of the car to the rear suspension, so the rear wheels can still spin. Many of our members doing these projects are participating in the Undergraduate Research Opportunity Program (UROP) and are receiving credit right now for working on the team. For example one Freshman, Helen, is working on reducing the weight of our braking system and preventing brake rub.

Finally I promised to talk about snow. Snow is fantastic! Ok my northwestern love of snow is showing. This last weekend winter storm Jonas gave us three inches of snow; I was hoping for more but any snow is still snow. It was wonderful. I spent many hours in the snow, and my friend and I tried to make a snowman. However the snow was too powdery so instead we tried making snow sculptures. Sadly though Tuesday was above freezing so now there is no more snow. :(

Snow at MIT! :D

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Chassis

Due to WSC regulations, our new car must have 4 wheels and additional head space. These new design challenges were meet and optimized by Andrew Liotta our lead engineer who designed the chassis. Dillon McConnon, our system lead made sure the chassis integrated well with the other subsystems such as the aero shell and electrical boxes.

isometric view

solidworks rendering of the chassis design

With the design complete and tolerances adjusted, we have now begun the building process. Using 4130 steel tubes, cut and coped to fit at the correct angles the chassis is welded together. This is a challenging and precise endeavor as it is important to have a minimal gap between adjoining rods in order to make a strong weld.

setting up to weld

Priya (left) and Kathleen (right) set up the steel tube in preparation for welding

Once set up (with jigs to hold things in place) the tubes are welded together. In fabrication of the chassis, the preparation takes longer than the actual welding time. Below is a time lapse of one evening’s effort of welding done by Thomas Villalon.

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Panasonic Provides Equipment for WSC

Our friends at Panasonic just sent us some nice equipment for use during WSC: cameras, camcorders, and SD cards.

Here are some test shots from around the shop:

Thanks to Panasonic.

kelly
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