User:Jof

Hello, I'm jof. I like computers, electronics, and making soft things.

At Sequoia Fabrica, I focus on the Network and Access Control.

Projects

MOTD (Message Of The Day) Banners

I wanted to make some friendly ASCII art banners when logging into servers at Sequoia Fabrica.

A Screenshot of the MOTD for soil

MOTD banner for nursery

Sequoia Fabrica Computer Embroidery

I created a Git Repository for us to share our computer embroidery files. So far, I have mostly been creating these with Ink/Stitch.

Sequoia Fabrica Seat Cushion

The folding metal chairs were a bit hard on my butt after a while. So, I decided to make a squishy pillow with the Sequoia Fabrica logo on it to stay comfy while hanging out at the workshop.

A seat cushion for Sequoia Fabrica folding chairs. It has computer embroidery with the Sequoia Fabrica logo and the letters "SF" under the shade of the tree.

Customized Phone Charger

We had some lovely donated wireless phone chargers for the space, and they have bamboo cases. I put one in the laser to engrave our vector logo file onto it to make it belong.

Bamboo Phone Charger with Sequoia Fabrica Logo

Sequoia Fabrica Learn-to-Solder PCB

I wanted to brush up on my KiCad skills, so I started to try and create a learn-to-solder PCB in the shape of the Sequoia Fabrica logo. I was especially excited to see if I could use the pad-like shapes in the logo as actual pads, but the proportions relative to common LED sizes meant that I had to use really tiny LEDs.

A tiny Sequoia Fabrica PCB.

So, I'm currently experimenting with maker a larger form-factor PCB with the entire LED package inside of the pad-hole However, when the logo is scaled up, it is a much larger PCB. So with all the added board real estate, instead, I'm looking at ways to add some levels of kits and functionality to the board as learners level up. Perhaps first, some LEDs that light up, then level up to add a microcontroller, then level up to add wireless communications.

Larger Sequoia Fabrica learn-to-solder PCB

3D Printed Plant Pots

I 3D printed some planter pots. We had some incoming propagants that needed little cozy homes.

These are 3D printed plant pots, one in a multicolor spiral shape, and the other a larger glitchy shape with a cubic crystal-like design.

Industrial Sewing Machine Peg

We needed a second peg to hold up an industrial sewing machine. Rather than buy a plastic part, I used Onshape to create a parametric drawing of the peg and printed it out in jazzy Orange PETG on the 3D Printer.

Industrial sewing machine peg in action

A cloned sewing machine holding peg

Wall mount for 1U Rack-mounted equipment

I had some 1U(nit) high 19" rack mounted equipment that I wanted to mount on the wall, but with mounting brackets that were not simple to rotate on the hardware itself. So, I created a model in Onshape to easily hang a switch and server in our networking closet.

A rack wall mount in action

An Inside Mailbox

We have a shared external mailslot with another business. To nicely sort and receive the incoming mail, we decided to make some mail holders for incoming post.

Inside Mailbox v0

The first version had an issue of having a bit too much (0.005 Inch) gaps for laser-kerf compensation. There isn't much friction between the joinery. In hindsight, I should really have been applying the compensation in the other direction with some negative numbers to the "Laser Joint" plugin command.

I found this OnShape FeatureScript to be super useful in making laser box joinery: https://cad.onshape.com/documents/578830e4e4b0e65410f9c34e/v/75269c4a1a5ece98be1e2b6f/e/dfd5effddfd7f2ecce4b0246

Here is the model for the first version in OnShape: https://cad.onshape.com/documents/3a738f55acdb8ee9de01c99c/w/2d486f5589b97955ce03e5ed/e/5041f073d4ec6cf0f3fc2ed7?renderMode=0&uiState=660226472aeb7d647e219947

The first version of a laser cut mail holder for Sequoia Fabrica

Inside Mailbox v1

I spun another iteration of this design concept with some tighter-fitting box joins and with thicker/larger patterns for added stability.

Added -0.005 inch of kerf compensation worked a lot better.

Version 1 of the mail minder -- a bit wider and deeper, with thicker geometric lace, and more-snug joinery.