Michael’s Project Portfolio

Michael P Graham

This page I’ve created to provide examples of projects I’ve worked on. This includes photos of my professional work at HP (2016-present), Palmer Manufacturing (2014-2015), Accutek Testing Lab (2011-2014), as well as personal projects.

As I look back now at the last few years of work, I realize how lucky I am to have had such a wide variety of experiences. I’ve worked independently, and as part of teams both small and large.  I’ve worked for successful well-managed companies small and large. And I’ve suffered through the other kind too, and painful as that was I’m better off for having had the learning experience.

 

HP (2016-present)

HP_MJF_3D_Printer

HP Multi-Jet Fusion (MJF) 3D printer (not the exact one pictured one one just like it). The entirety of 2016-2017 were spent developing one of 10 major sub systems with a small team. Designed for medium volume manufacturing, I developed parts from idea to prototype through tooling & production on the assembly line. Our team was responsible for dozens of injection molded plastic parts, sheet metal , and even production 3D printed parts to be fabricated on other MJF printers.

 

Accutek Testing Lab (2011-2014)Accutek Custom Extensometer & Calibrator

Accutek Custom Extensometer & Calibration jig: Hard to see but those aluminum rectangles in the photo would have cost $10,000 were you to buy them new. They are strain gage based extensometers capable of repeatable measurements of .0001″ that I custom designed to measure strain on tensile test specimens. The red fixture is used to calibrate it.

 

Accutek Custom Bearing Testing Fixture

Accutek Custom Bearing Testing Machine. Designed to dynamically load aircraft bearings radially AND axially WHILE spinning them. Assembly used servo hydraulic pistons and servo motors for control. Precision controlled using RMC motion control software.

 

 

Accutek Custom Temp Probe Testing Fixture

Accutek Custom Temperature Probe Testing Fixture. The machine is a two axis gantry designed to repeatedly dip test specimens into two separate very extreme temperature controlled oil baths.  Controlled with DasyLab (Labview) software.

 

Accutek Custom Test Oven

Accutek Custom Test Oven (large). This type of equipment normally retails for big bucks. Designing our own version gave us the capability to run tensile tests at elevated temperatures at a fraction of the cost. (The is the story with much of the Accutek equipment here. We were an ambitious group and if we though we could design a solution cheaper than buying one, we did).

Accutek Custom Test Oven Mini

Accutek Custom Test Oven (small). Designed to fit a smaller testing machine.

Accutek Custom Strap Tester

Accutek Custom Strap Testing Fixture. Many of my projects at Accutek called for custom mechanical jigs for loading random objects in specific ways. These grips were designed for holding and tensile testing toeing straps normally used for cargo trailers.

Accutek Custom Hydraulic Wedge Grips

Accutek Custom Hydraulic Wedge Grips. Designed to grip tensile test specimens at high loads without applying a preload to the specimens. This design was based on a professional set I reverse engineered and shrunk down to suit our needs.

Accutek Custom Sterling Freezer

Accutek Custom Sterling Freezer: I took apart a portable “Ultra-Low” Brand stirling freezer and remounted it in a new orientation so that we could run tests at cryogenic temperatures without the use of liquid nitrogen (an expensive consumable for long tests).

 

Accutek Custom High Disp Test Machine

Accutek Custom High Disp Test Machine: I had a need for a super high displacement test machine but I didn’t have the budget for one. So I retrofitted our drop-testing machine with ball screws and a servo motor.

Accutek Custom Torsion Low Temp Test

Accutek Custom Torsion Low Temp Test: Similar to the high displacement machine, this adjustable torsion tester was built by retrofitting various existing equipment. Used here to twist a bellow specimen with a liquid nitrogen line used to cool it off.

Accutek Custom Vibration tester

Accutek Custom Vibration Tester: Designed an adjustable height fixture to suit any size shaker.

Accutek Custom Chain Test Machine

Accutek Custom Chain Test Machine: This machine can dynamically test up to 4 roller chains at once. Each chain station has independent load control using a pressure transducer and a pneumatic cylinder.

Accutek Custom 3 Axis Load Cells

Accutek Custom 3 Axis Load Cells: Each device contains three custom designed load-cells used for ergonomics testing.

 

Accutek Medical Device testing Fixture

Accutek Medical Device Testing Fixture: For subsidence and expulsion testing on spinal implants. Much of Accutek’s business was based on medical device testing and I worked on many tiny custom load fixtures of this nature.

 

 

Accutek Custom Servo Fatigue Machine: Adjustable tabletop static & dynamic test machine using a ball screw & servo motor. (Shown as 3D model because I had left before this machine was completely assembled). I also laide out & wired up the control cabinet for the set of  3 of the ‘Custom Servo Fatigue Machines’. I designed, sourced, ordered, and build this whole cabinet.

Accutek Mechanical Test

Accutek Weird Mechanical Test: This is an example of a custom test fixture used to apply a load in a very specific orientation.

Accutek Custom Pump Testing Fixture

Accutek Custom Pump Testing Fixture. Designed to safety test Semi-truck water pumps under various conditions.

Accutek Custom Clevis

Accutek Custom Clevis: This is a fun example of my personal pursuit of improvement of a work process. I was slightly obsessed with figuring out how to design a single adjustable clevis that could be used for the majority of tensile tests. I came up with an even better design later you can read about here.

 

Palmer Manufacturing (2014-2015)

Palmer Sand Heaterpalmer sand mixer

 

 

 

 

 

 

 

Much of my work at Palmer consisted of managing large out of date inaccurate legacy BOMs & CAD, and making pseudo technical customizations to them to accommodate new customer’s specific requirements.

Above Right: Palmer Manufacturing Sand Heater: This is a machine used to heat sand. I typically made modifications to basic dimensions to accommodate various heating loads, voltages, and sand volumes.

Above Left: Palmer Manufacturing Sand Mixer: This is a pieced together portable sand mixing assembly based on various pieces of existing designs.

College Senior Project (2010-2011)

SIUE Solar Car Chassis College Solar Car Steering

College Solar Car Chassis Senior Design Project: You read a lot more about designing 3 wheeled vehicles here.

College Solar Car Suspension  College Solar Car Suspension

 

Personal Projects:

The intent behind sharing these here is to show that I am a highly motivated person and a recognized innovator in the areas of 3D printing and electric vehicles. My work has been featured on the front page of big name websites including Instructables.com, HackaDay.com, 3Dprint.com, and 3DPrintingIndustry.com.

Electric Motorcycle

Above: I converted a motorcycle to an electric vehicle, then I wrote a set of directions for how others can do it and I also wrote an article about the things I learned from the experience.

Smoke Detector Disconnector   TestrBot Main photo

Above Left: My invention for preventing house fires.

Above Right: I designed and built a DIY tension/compression test machine so I could run tests on 3D printed objects.

Bicycle BoosterPack KitBoosterPack Mid Drive Configuration

Above: The Bicycle BoosterPack. A reconfigurable & near universal kit that gives adult bikes an ultralight portable electric power assist.

My collection of open source 3d printable tools & toys shared on Thingiverse:

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dc7ba5e6f896c07d5d3341f563293a34_preview_featured  6588e651f2718cfce2e63bce457b45fd_preview_featured

High Load Linear Actuator   Machinist ViceUltrasonic Acetone Vapor Polisher  Temperature Controller  Prototype Load Testing Frame  Homemade Compressed Air Engine

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