Thank you Dahl-Beck Electric!

Benjamin Chen // // No Comments

8659555010_8c6532e16c_o

This past Tuesday, the motor team and several other members had the pleasure of taking a tour of Dahl-Beck Electric‘s motor repair facilities. Dahl-Beck is a local company based in Richmond that performs a wide range of repairs on industrial-scale electric motors brought in from customers around the world. They provide an incredible and invaluable service to clients who are able to bring in broken motors ranging from <1 hp to 10,000 hp and have them disassembled, evaluated, completely overhauled if necessary with new wiring and newly machined surfaces, enameled, painted, re-tested, and shipped back as good as new.

The CalSol motor team in particular is interested in Dahl-Beck’s ability to vacuum-impregnate motors with epoxy to ameliorate vibrations and insulate electromagnetic components. By requesting use of Dahl-Beck’s vacuum pressure impregnation (VPI) services, we could achieve a much higher quality potting of the current design of our stator than if we attempt to achieve it ourselves.

A big thank you to Dahl-Beck employees Kevin Sams and Dan Neal for taking the time out of a busy work season to give us a tour of their well-maintained facilities and chat about our motor project, and thank you to Mick Franssen of the UC Berkeley mechanical engineering student machine shop for introducing us to Kevin!

Be sure to check out photos we took on our Flickr.

Cal Day 2013!

Benjamin Chen // // No Comments

bnrThe annual Cal Day event is coming up this Saturday on April 20th and CalSol will be on display!

Cal Day happens every April and is a great opportunity for all of Cal to show off what it’s got in store, especially for visiting prospective students, and this year there are there are more exciting things to see than ever before. CalSol, in particular, will be showing our current car Impulse as well as newly built parts for our new vehicle, Zephyr. Our suspension and controls teams have been hard at work to display numerous vehicle components, newly machined and laid up, so make sure to stop by the Etcheverry-Soda breezeway all day to see Impulse on display! We will also be manning a table in front of the Engineering Student Services office for questions and information.

Click here to see a full list of Cal Day events hosted by the Department of Mechanical Engineering.

 

Hope to see you all there!

Unfinished lathe work on Zephyr's wheel hubs.

Unfinished lathe work on Zephyr’s wheel hubs. To see the finished results, come see them at Cal Day!

Waterjetted 7075 aluminum uprights for Zephyr's front suspension.

Waterjetted 7075 aluminum uprights for Zephyr’s front suspension.

Thank You to Sena Bluetooth!

Benjamin Chen // // No Comments

Here at CalSol, safety is our #1 priority. For several months now, we have had to make do with handheld walkie talkies for communications between Impulse and the accompanying safety caravan. This system has given us many a headache because of problematically low sound quality which had no chance competing against the noisy clicking and whirring of our NGM SCM150 motor at low speeds and the wind at high speeds. With clear communication being one of the best defenses against the possibility of unsafe situations, we started to search for new methods of relaying messages between Impulse and the caravan.

(more…)

Motor Team Check-in: Big Ideas Award, Motor Dissection, and Coast-Down Testing

Benjamin Chen // // 1 Comment

With the spring semester out of the way and a busy summer ahead, the motor team has finally gotten a chance to reflect on the many things it’s accomplished over the past two months since its previous blog post (“If We Had Cylinders, We’d Be Banging On All of Them”).

Rotors in Motion Poster

Firstly, we are proud to announce that Rotors in Motion, the motor team’s entry in the 2012 Berkeley Big Ideas contest, won 2nd place in the Energy Efficient Technologies category and a $4000 prize! A big thank you to the Big Ideas staff for making this accomplishment possible and a huge round of applause for Isaac Spiegel, who spearheaded the Big Ideas entry, and the other motor team members who worked tirelessly to draft, revise, and polish the 15-page proposal document. Go team!

(more…)