https://www.jeremyrine.com/about daily 0.75 2020-12-23 https://www.jeremyrine.com/work-projects daily 0.75 2019-12-18 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa8e1ddd325c224e949423/1576701475208/photo-2.jpg Work Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa8d7e9a89ef5096b5609b/1576715073485/schroeders-1.jpg Work Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa8e45b2c1564071c769b6/1576701514649/image.jpg Work Projects https://www.jeremyrine.com/school-projects daily 0.75 2021-01-29 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa9551f486e62e77a7d802/1608755320200/DSC06694.jpg School Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa91a9f7c9c21873cc4e0b/1576709726711/IMG_2205.jpg School Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/601364d24acf8c4a4cbb7bd4/1611886015142/complete.jpg School Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa98c9dd325c224e967e05/1611883041934/IMG_2119.jpg School Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa95119a89ef5096b6c67f/1576713812712/IMG_1991.jpg School Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/601362c5d982e9316591af6c/1611952692700/DSC06907.JPG School Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/60146a688fa283494336624b/1611950702976/IMG_2604.jpg School Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/601469ead0e08d4def6d269d/1611950578318/unnamed.jpg School Projects https://www.jeremyrine.com/projects daily 1.0 2019-12-18 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa9466c0721c314762f3af/1576704899413/IMG_2209.jpg Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa9466c0721c314762f3b2/1576708885784/IMG_1518.jpg Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfa9466c0721c314762f3ac/1576701245121/schroeders-1.jpg Projects https://www.jeremyrine.com/personal-projects daily 0.75 2020-12-23 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfaa853dd325c224e990c05/1576708187082/IMG_1518.jpg Personal Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfaaa73dd325c224e99572c/1576708734097/IMG_0867.jpg Personal Projects https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfaaaa17748b21c825e0db4/1576708779392/IMG_1492.jpg Personal Projects https://www.jeremyrine.com/contact daily 0.75 2021-01-29 https://www.jeremyrine.com/sdac daily 0.75 2020-12-14 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfaaefe3b6e8710da69972a/1576712708376/IMG_2274.jpg SDAC - Goal: Build a blue-tooth controlled vehicle to drive through an obstacle course of unknown design. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfaafe8f486e62e77ac1cd5/1576712708379/IMG_2209.JPG SDAC - Process: Starting with a cardboard mock-up the general size and mechanisms were determined. Using laser cut plywood, initial components were designed with adjustable lengths and mounting options. These pieces allowed real world testing with the ability to make quick changes without having to make new parts. The final build components were built having learned from the function of the test pieces. Cutouts were made for weight reduction, and corners radused to eliminate stress risers and overall aesthetics. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5fd7e5547be9e476c9b2f055/1611884311612/IMG_2458.JPG SDAC - Lessons Learned From this project extensive skill improvements were made in rapid prototyping with a laser-cutter, 3D printing, and programming using Arduino IDE. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfab266f486e62e77ac7a36/1576712708382/IMG_2192.jpg SDAC - Challenges: The electronic components to use a bluetooth controller (iPhone) and drive the motors was a new area of knowledge. Using school and online resources to quickly learn how to write code for the control system was critical to the success of the project. Applying engineering kinematics to the code allowed for the vehicle to drive smoothly with different size wheels and prevent tire scrubbing while turning. https://www.jeremyrine.com/lotus daily 0.75 2019-12-18 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfabc157748b21c8260681c/1608754036900/LotusBeta.JPG Lotus - Process: An octagonal outer shape was selected so that more units could be cut out of a single sheet of steel. The material loss between units would be near zero compared to using a shape like a circle. By bending the “leafs” outward, it moved mass away from the center which increases the moment of inertia (MoI). Initially this resulted in a MoI larger than the original flywheel, so the overall size of the flywheel was reduced until the desired MoI was achieved as well as increasing the number of units produced per sheet. Solidworks was used to make this analysis. In the end, the only wasted material was the loss from the kerf of the waterjet cut and the 14mm hole in the middle. A square design was considered to further minimize material loss at the edges of a sheet of material, but this inefficiency was deemed acceptable for the gain in aesthetics. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfaba4bd013c3671da906f4/1608754036895/IMG_1991.jpg Lotus - Goal: Redesign a flywheel for a sterling engine using 1/8” steel plate cut on a waterjet (no other processes allowed). The overall diameter can’t exceed the original, the center hole must be 14mm and the moment of inertia must be the same as the original. Minimize manufacturing costs. https://www.jeremyrine.com/schroeder daily 0.75 2020-12-14 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfac1d5f7c9c21873d3a3c1/1576714726656/P1010500.JPG Schroeder - Beer Stein Lockers: Custom beer stein lockers were made using angle iron and stainless steel mesh. Each locker was fitted with a lock so that customers could rent a locker to store their personal beer stein. Skills Applied: MIG welding mild steel and stainless. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfabff3f7c9c21873d373ac/1576714241998/schroeders-1.jpg Schroeder - Halo Light Fixtures: Five large halo shaped light fixtures suspended from the ceiling. Primarily constructed of rolled steel bar and laser cut sections. Wiring for the lights was completely hidden within the hoop body. Skills Applied: MIG welding mild steel, Electrical Wiring. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5dfac086b5d24a356326029b/1576714386406/P1010512.JPG Schroeder - Tables and Benches: The oak wood for the tables and benches was fumed with ammonia in a custom built vapor chamber. This maked the oak look older/darker and less yellow and bright. The table bases are made of steel tubing with locking casters so that the layout of the restaurant can be easily changed. The benches have steel sub-frames for strength. Skills Applied: Woodworking, Wood Fuming, MIG welding mild steel. https://www.jeremyrine.com/canopy daily 0.75 2020-12-23 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5fe3a42169b9c20e95006c6b/1608754218682/DSC06694.jpg Canopy - Goal: Using a single micro-controller and servo add automated motion to the origami. Video (YouTube) https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5fe3a71a3625415ec2690a5e/1608754983027/Origami02.jpg Canopy - Lessons Learned: Using cardboard is a cheap and quick material to do initial prototypes. If time and care are taken when working with cardboard a high degree of quality can still be maintained. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5fe3a5ee86ada52be1cc8dc9/1608754688326/IMG_2072.jpg Canopy - Process: The housing was constructed out of precision hand-cut cardboard to eliminate folded corners and provide a crisp look. The micro-controller and servo were hidden internally to create mystery of how the mechanism works. Clear fishing line was run through the canopy legs to further hide how the mechanism works. https://www.jeremyrine.com/engine daily 0.75 2020-12-23 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5fe3ab777d8c8c76ef5bdc60/1608756097265/IMG_2075.jpg Engine - Lessons Learned: Much of this project involved laser-cutting 1/8” plywood and learning how to prep cut files and adjust the laser-cutter settings. It was also of value to learn that give the low cost of the material and high speed performance of the machine meant that cutting extra spare parts or a few variations of the same part often saved time in the long run. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5fe3aae931f2b2078a0ac16e/1608755987945/IMG_2077.JPG Engine - Process: Primarily using 1/8” thick plywood my goal was to recreate several of the principals of a combustion engine in a visual and artistic way. The hand crank rotates a square drive shaft that spins differently shaped cams that move the pistons at different cycles and strokes. Since this is human powered, I made “flat” bearings to support the driveshaft giving a near frictionless feel to the hand crank. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/5fe3a9ce8450fd0449536cf3/1608755676063/IMG_2119.jpg Engine - Goal: Create a mechanism that translate a rotational motion to linear motion. Video (YouTube) https://www.jeremyrine.com/sst daily 0.75 2021-01-29 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/601367c11cd6623681227aa8/1611884635168/IMG_5718.jpg SST - Process: From prior experiences with the individual components (microcontroller, motors, accelerometer) we integrated that knowledge into a single function device. Using the accelerometer we recorded the motion of the user swinging a bat correctly (level shoulders) and incorrectly (dipping outside shoulder. When a bad swing is detected, vibratory motors are triggers to alert the user so that they can correct their posture on the next swing. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/60136ad0c0183559d5820347/1611885274349/calibration.jpg SST - Challenges: Quantifying the readings from the accelerometer into “good” and “bad” swings required some data analysis. Using Matlab we plotted the pitch vs. roll data from the accelerometer and made a determination that bad swings had the unique momentary condition that Roll > Pitch. This became our trigger condition in our microcontroller to activate the vibratory motors. Additionally, care was taken in power management to make sure all components in our device had proper voltage and current, and that our power supply could operate the device for a useful amount of time. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/601367877322d2530513e83b/1611884434275/swing.jpg SST - Goal: Build posture monitoring device to provide haptic feedback when the user has incorrect posture while swinging a bat. This project was developed in conjunction with Ashley Reilly. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/60136d68ca0258500d506435/1611885946948/complete.JPG SST - Lessons Learned For a prototype we should have components easier to replace or change. In hindsight we built this more as a finished product then as a prototype. https://www.jeremyrine.com/ssm daily 0.75 2021-01-29 https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/60146df6f3dca34705330261/1611951635911/DSC06888.JPG SSM - Goal: Using a single motor, create an automated machine to receive, stamp and eject medallions. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/60146e1e9f91f42f10173036/1611951656722/IMG_2433.JPG SSM - Process: To eliminate the need for computer controls a four position Geneva Wheel was selected to translate a constant velocity input into a timed output. A prototype made from laser cut plywood was used to verify the concept and dimensions. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/601471e733b968254212ed08/1611952640420/DSC06887.JPG SSM - Challenges: The final unit was built from aluminum to give a robust structure. The prototypes were built from wood which were easily glued together, thus design changes had to be made to accommodate a hardware based attachment systems. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/60146e7870ec933a3ef27b63/1611951781019/DSC06886.JPG SSM - Innovation: To add further mechanically controlled timing to the machine, a cylinder cam “circam” was developed which gave designed motion of a swing arm through each complete rotation. Only a single motion was needed for this application but a complex behavior could easily be adapted to this design. https://static1.squarespace.com/static/5dfa66e5541d243d80c3fbc9/t/601470eed0c79d277748f7f4/1611952370953/DSC06914.JPG SSM - Lessons Learned More time should have been spent on motor torque requirements. In the final days of the project a new motor had to be added in a new location with corresponding gear to get enough torque to run the machine. The original motor was left in place but not powered for alignment purposes (keeping this a one motor machine). Using direct drive from the motor limited our ability to adjust torque for this prototype.