Thursday, December 9, 2010

Final rover design


Scoring Arm




Now that the competition is over we can show our completed CAD without the possibility of having other teams adapt to our design.


Monday, December 6, 2010




Here are a few pictures of our rover.

Update for week of November 28

This has been a really busy week, as we finish up our machine. We have spent hours machining, polishing and assembling, but have finally finished. Our largest tasks completed this week were the redesign of our motor mount on the scoring arm to accommodate the bigger motor required to drive the threaded rod that advances the machine effectively, and the assembly of our rover and locking arm.

To finish our machine Jake, Marc and I were up all last night fine tuning the joints and making sure all the pieces fit together. Pictures will be posted soon to show our finished machine. In a short while, we will be presenting our machine to Sei Jin for Milestone 9. What lies ahead for us this week is fixing up our machine and testing it before the seeding on Wednesday, and uploading our team video.

Almost done...

Sunday, November 28, 2010



This is our MCM. We found out after testing that one planetary gearbox is not enough to move the balls in the slot. To fix the problem we will add an additional motor by changing the pillow block design to accommodate an additional drive gear.

Update for week of November 21

This past week, before leaving for Thanksgiving break, we finished the scoring arm module of our design. After running into some initial problems with the exact dimensioning of stock pieces, and a lot of sanding, we assembled the module to present for MS8 on Wednesday. Testing of the assembled module exposed some flaws in the positioning of the motor, and torque calculations. Solutions are being devised and tested.

After our scoring arm was ready, we finished the designs for our rover and locking arm. This week's schedule will involve machining and assembling these modules as well as testing for the entire machine. Our machine shop use is starting to wrap up, as much of what is left is to be done on the water jet cutter, and then simply assembling the pieces.

Sunday, November 21, 2010

Update for week of November 14

Lecture has officially concluded and we have turned all ME 250 efforts towards our project. We have been working on completing all of the components of our most critical module, the scoring arm. The two end pieces of the rail support and the largest section of the arm itself were completed last weekend, with all of the smaller and more complex parts being the focus this week.  Here is a more detailed list of our tasks completed this week:

-Machining of many of the components for the scoring arm
-Researching the most realistic spring configuration for the locking arm
-Beginning planning of fabrication of the rest of the the machine

On Monday this week we'll be presenting the first 3 components of our scoring arm to our GSI for milestone 7, and we will be finishing our scoring arm so that it can be presented Wednesday for milestone 8. This week will consist of a lot of design and machining on our parts.