High Density Power Motor Team

This week: -> Got together as a team to work on presentation -> Also meet up with other teams to make sure that all information is up-to-date and the same. -> We are currently in contact with XOFO motors about a recommended motor, since MAC Motor has been unresponsive. -> Ran kinematic simulations on the motor XOFO recommended. -> Calculated outputs of our motor to make sure we have enough output to move bogie Since we have decided to go with another motor: -> Drew preliminary CAD drawings our shaft -> Ran FEA on our designed shaft -> Got an invoice for 6 motors without controller -> Updated Gnatt chart: motors are currently delayed but on schedule for everything else. -> Spoke with Dr. Furman about reducing the number of motors needed in order to save money Next Week: -> Continue CAD design of shaft and motor casing -> Keep in contact with XOFO, MAC Motor, QS, and TDCM about motor -> Purchase Motors (4)

This week: -> We are currently still waiting for MAC Motors reply on having them include a set of planetary gears inside the motor that we have chosen, as well as, all the dimensions of the motor. -> We went ahead and contacted another company, SOFN, about a different motor that would also meet our motor specification. MAC Motors is taking a lot longer to reply than we anticipated, and we are behind schedule for physically having the motor in hand. We have received CAD drawings from SOFN, which we will base all calculations and designs of our project on for now. -> If we are to go with MAC Motors, they will be designing and implementing the planetary gearbox in the motor for us. -> If we are to go with SOFN, the motor they suggested will have a planetary gearbox already implemented in the motor. However, they do not provide customization unless we order over 1000 units of the motor so our team will have to customize the shaft and design the casing. -> We will...

On October 03, 2018: -> Following up with the projects, we met with our mentor to narrow down the motor that we are going to use for Makers Faire. Specification: - Motor type:  M12500 - 3A by MAC motor - Brushless DC hub motor - Rated Power: 600 - 1000 [W] - Rated Voltage: 36 [V] / 48 [V] - Speed: 2000 - 4000 [RPM] We are currently keeping in contact with MAC motor for more detail information, such as: - Customizing planetary gearbox - Exact dimensions of the motor - Possibly customizing shaft design and length -> We spoke with the control team to discuss KBL controller for controlling the motor speed. KBL controllers are a device that sees voltage and converts that into motor speed. -> We spoke with our mentor about our concern about the motor overheating while running at 2 miles per hour for few minutes during Makers Faire. We believed that in order for the bogie to run at 2 miles per hour, our motor has to run at a low RPM. However, according to ...

On 10/01: Team members met in person in the library to work on: The team blog Discuss future plans of the project Work on motor requirements for other groups Discussing motor options for bogie Future plans execution: Gather information of desired motor specs Finding sponsors to fund the motor Place order in for hub motor Decide on the motor (6 hub motors)  Redesign the housing of the motor to fit better on the bogie Finalize on designs. Assembly and Manufacture. Finalize products on the bogie Makers Faire