Project Musings

The Works of Steven Green

Research into explosive detection

From 2010-2012, as graduate student in mechanical engineering at the University of Massachusetts Lowell, I researched resistive sensors. These Graphene sensors were being tested for thier ability to detect chemical traces of explosives. I fabricated and tested sensors coated with Graphene using phot...

Walking the Queens in Holliston

On January 17, 2023 I took my camera for a walk following light snow. With a Yashica 135mm lens mounted to my Nikon Z5 camera I peaked between houses, looked up streams, and scanned the sky.

Although not finding too much color, I spied a hawk in the trees. The hawk perched on tree branches too fa...

CNC turtle-draw script software

CNC router needs to be given instructions (G-Code) to move a tool over and around a work-piece. The first tasks I performed with the router used instructions generated by a small utility I wrote to cut out the outline of a polygon, but I wanted a more general solution.

I am writing a utility to cr...

Signal phase adjustment

I print pictures on my color laser printer (Canon LBP612CDW). When I needed to print a passport photo I found that the skin tones were off; there was a strong red shift in the skin.

In order to create better prints I calibrated my printer profile with the aid of a flat-bed scanner.

I work in Lin...

Signal phase adjustment

While performing research at UMass Lowell, I worked along side a MEMS project. This project needed to pass two analog signals to the MEMS device to cause parts to move. The two signals needed to be out of phase by varying amounts, and the signals needed to be biased. Providing aid to this project, I...

A CNC for my personal projects

I had wanted a CNC setup for a long time. I already have a 3D printer, which is good for small odd 3D shapes fabricated from plastic, but it cannot do large items. The addition of a Workbee CNC to the shop would enable me to make large parts quickly from flat materials.

In late 2019 I began acquir...