TunellOpDmiz

Engineering Posts

Documentation of my hobby projects is something I regretfully neglected.
All the projects below were done in my free time alone, after work.
Please don’t hesitate to reach out if you have any additional questions, as much isn’t covered here.
Thank you,
Andrew

  • Home Control

    Home Control

    This model includes an ESP-32, an I2C OLED display, a hall-effect sensor, and an endstop/button. The fun challenge I implemented in this design was building my own encoder wheel solution. For this I created a wheel which had a series of embedded magnets in the perimeter. Using a Hall effect sensor mounted next to the…

  • HDD External Mount

    HDD External Mount

    This model allows for 3 hard drives to be mounted vertically and in the open. This was an admittedly strange necessity for me; however, my server chassis has been entirely filled with other components, so I had to move the hard drives outside. I wanted them open so they could receive passive cooling from the…

  • Easy Rice Measurement Cup

    Easy Rice Measurement Cup

    This cup is dual layered. The inner layer has drainage holes at the bottom and a fill line on it. You fill the inner cup with rice up to the fill line, while in the outer cup – and can rinse the rice without it draining. After you can remove the outer cup and the…

  • Robo Gardener

    Robo Gardener

    To water a variety of different-sized plants in my garden automatically, I created the system seen here. I wanted this to be an art piece more than functional.It features a water fall mechanism which moves around a spout, via a stepper motor and pulley system (seen on the upper hub with spokes and teeth around…

  • Dense Sample Holder

    Dense Sample Holder

    In my lab work, we produce hundreds of samples to be tested. Traditional sample holders take up lots of space, so I designed this portable sample holder. It comes in two sizes (10 or 5 sample trays)The sample trays slide into a storage box that can be screwed tight, with a lid that has a…

  • Angled Bowl

    Angled Bowl

    This is an example of Fluid forms, which are traditionally a challenge in CAD software. This was done in Autodesk Inventor as an exercise. It fits a standard dog food bowl and keeps it at a 15-degree tilt. This is what I use as a catch-all in my home.

  • Burrito Feedo

    Burrito Feedo

    The Burrito Feedo is the solution for a my very hungry cat. Available automatic cat feeders had two main problems for me 1. They don’t actually measure the food weight, just activate a dispenser for a set time2. They are always automatic, meaning the cat won’t recognize you as the provider of food. To solve…