Spiderbot

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Spring 2018 3DoT Hexy: Mock-Up Motor Power Under Load

By: Raymundo Lopez-Santiago (Mission, System, and Test) Using 3DoT David’s motors (Micro Gearmotor – 900 RPM (6-12V))), a no load and mock up under load test was performed. Under the no-load test, the motor spun with no gears attached. Under the load conditions, the motor spun with gears in place and legs attached (half of […]

Spring 2018 3DoT Hexy: System Block Diagram

By: Raymundo Lopez-Santiago (Mission System and Testing)      3DoT Hexy will be powered from a single 3.6V RCR123A battery. Communication for mobile operation of 3DoT Hexy will be done using the BLE bluetooth module. Two separate custom PCBs will be designed and built. One will be a custom sensor PCB that will have an […]

Spring 2018 3DoT Hexy: Product Breakdown Schedule

By: Raymundo Lopez-Santiago (Mission, System and Test)      3DoT Hexy is split into five sections for the Product Breakdown Structure (PBS).  Anything for movement which includes motors, joints, gears, and legs are the main parts in for mobility of the spider robot.  Communication via Bluetooth from a smartphone and the Arxterra app allow for […]

Spring 2018 3DoT Hexy: Interface Matrix

By: Raymundo Lopez-Santiago (Mission, Systems, and Test) The interface matrix was developed with information obtained from datasheets and pins allowed from the 3DoT6. The I2C expander model is TCA9548A. There may be a possibility that we will not need it if we are able to find alternative UV sensors that have two I2C addresses. Values will […]

Spring 2018 3DoT Hexy: Booster Shield Layout

By: Kris Osuna (Electronics & Control Engineer) 3DoT Hexy needs to have a 5V source to power the micro metal gear motors and UV LEDs. We are using a booster to get 5V from a 3.7V battery source. Using the software Eagle CAD and the TI WEBENCH tool a schematic and PCB is being made. […]

Spring 2018 3DoT Hexy: Sensor Shield Layout

By: Kris Osuna (Electronics & Control Engineer) 3DoT Hexy needs to connect its sensors to the 3DoT board via jumper 3. Using the software Eagle CAD a schematic and PCB is being made. Must have 3 connectors with 4 pins for each UV sensor Must have a connector with 4 pins for the ultrasonic sensor […]

Spring 2018 3DoT Hexy: 3D Model

By: Eduardo De La Cruz (Manufacturing Engineer) Introduction This blog post contains detailed 3D renderings of the STL files that will be uploaded to a 3D printer. For the most part we will be 3D printing the parts designed in “Spring 2018 3DoT Hexy: Mechanical Drawings” and discussed more in detail in “Spring 2018 3DoT […]

Spring 2018 3DoT Hexy: Getting 3DoT David Working

By: Kris Osuna (Electronics & Control Engineer) and Eduardo De La Cruz (Manufacturing Engineer) Introduction Since we will be basing our design of Spring 2016’s 3DoT David, it is important that we get a good idea of how 3DoT Davids mechanism functions, as well as of how this mechanism will be interfacing with the 3DoT […]

Spring 2018 3DoT Hexy: Mechanical Drawings

By: Eduardo De La Cruz (Manufacturing Engineer & Project Manager) Introduction Below are the sketches for our 3DoT Hexy design. Sketches are susceptible to change. All changes will be logged in this blog post in future iterations. The first iteration will be considered our preliminary design which we label as 3DoT Hexy Mk-01. Future revisions […]

Spring 2018 3DoT Hexy: Project Planning and Scheduling

By: Eduardo De La Cruz (Project Manager) Introduction     The purpose of this post is to compile the project schedule from start to finish for all task that need to be finished by each division. The schedule will practically mirror the the time frames and due dates priorly established in the task matrix. The goal […]