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All uploads for: J.M.Pearce

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Photometer for Nitrate Testing

Open-source testing platform capable of performing Nitrate Reductase Nitrate-Nitrogen Analysis Method. This allows you test for nitrates in water, soil, etc. Arduino compatible - read the tests on your Android device. For BOM, electronics and...

Nitrate Testing, Photometer
Photometer for Nitrate Testing

Open-source testing platform capable of performing Nitrate Reductase Nitrate-Nitrogen Analysis Method. This allows you test for nitrates in water, soil, etc.   Arduino compatible - read the tests on your Android device.   ...

Nitrate Testing, Photometer
Customizable Rolling Pin Holders

My wife got these new age rolling pins - that are great but they turned out to be too large for the drawers. 3D printer to the rescue -- reasonably stylish toroids to hold them on the kitchen cabinet.

Custom Donuts, Custom Toroids, Rolling Pin Holders
Parametric Book Stand Display with Lip

This is a quick and easy - customizable book display stand for all of your great written tomes. Now with a lip.   Edit the scad file in OpenSCAD for your particular book.

Parametric Book Stand
Textile Fastener

This two piece device allows you to get a firm hold on any type of textile without puncturing them. The first part of the device, which we will call the lock (shown in blue), fits closely into the base, which we will call the star because of its...

Textile Fastener
Electric Outlet Covers and Plugs

The idea for this set of things it to make the base designs for custom outlet covers both decora and duplex. The first goal of this project is for electric safety for families with young children with an unhealthy interest in electric outlets....

Outlet Covers, Outlet Plugs
Fiber Optic Cable Switcher

This is a holder to attach two fiber optic cable to a 8mm smooth rod and allow easy switching between cables for optical experiments. This component is part of the Open-source optics project (see reference links for details), whose goal is to...

Fiber Optic, Fiber Optic Cable Switche
Safety Razor

Real men shave with a razor holder they print themselves. Sorry Gillette.   It works - the picture is of me having just shaved half my face with it.   Instructions:   To print: top, bottom and handle prints  ...

Razor, Shaving
Innovate or Die-- Customized License Plate Border

Using the following options:   top_word = Innovate  bottom_word = or Die  plate = 155.9  text_depth = 3  font_scale = 2.5

License Plate
Customizable Lens Holder

This is a lens holder for optical experiments.   This component is part of the Open-source optics project, whose goal is to radically reduce the cost of scientific optical hardware: by the Michigan Tech's Open Sustainability Technology...

Customizable Lens Holder
Optical Rail Mount for OpenBeam

This is part of a system of prints that turns an Open Beam into an optical rail. An optical rail is a long, straight, sturdy rail onto which optical components such as light sources and lenses can be bolted down and easily shifted along the length...

Optical Rail Mount For Op
Customizable Chopper Wheel

This is a chopper wheel for optical and optoelectronic experiments.  This is a customizable chopper wheel -- derived from the very nice ---Parametric encoder wheels and the shaft lock for wheels with a nut cage for mounting firmly to a...

Chopper Wheel, Wheel
Customizable Tent Spike

This is a simple open-source parametric tent spike to be used to hold a tent or anything else you need to keep on the ground out in a field. We are using them to test different prototypes of small-scale portable solar photovoltaic racking designs. ...

Camping, Spike, Tent Spike
Customizable Perforated Cylindrical Plate

This is a quick customizable way to make an array of holes of any size in a cylindrical plate - specifically for use in a Buchner funnel

Perforated Cylindrical Pl
Customizable Square Array of Cylinders

This is a quick customizable way to make an array of columns of any size and with any size columns.  This little design is a great example of the beauty and power of OpenSCAD as it has lots of uses -- everything from setting up a 3-D...

Array Of Cylinders
Half Sphere of Fluid

This customizer OpenSCAD script puts a half sphere depression in a cube - to be used for reactionware testing. You input the number of mL you want to use. Check my math.

Half Sphere Of Fluid
Lid for Half Sphere of Fluid with Injection Hole

This script makes a lid with a hole for injecting chemicals for a half sphere depression in a cube - to be used for reactionware testing. It is parametric and sized depending on the mL of fluid. 

Fluid Lid, Lid, Reactionware
Lid for Half Sphere of Fluid

This script makes a lid for a half sphere depression in a cube - to be used for reactionware testing. It is parametric and sized depending on the mL of fluid. 

Fluid Lid, Lid, Reactionware
Paddle and Oar Hooks

Do you have paddles or oars laying around? Make some custom hooks for them and hang them on your walls. Measure the width of your paddle or oar in mm and then use the Customizer to make a custom hook for it. You can adjust the angle of the...

Hooks, Oars, Paddles
RecycleBot Chain Guard

This is a simple chain guard to keep you from losing a finger in the RecycleBot V2.2+ waste plastic extruder. Now that the RecycleBot is a little more safe - you will be interested to know that it is also much more environmentally friendly to print...

Recyclebot Chain Guard
Adjustable Laptop Stand

Worried about the news reports that "sitting is the new smoking"? Are you sitting now? Stand up at your desk and tone your backside while you work with this handy completely adjustable laptop stand. The open-source stand is made from 3-D printable...

Laptop Stand
Easy Bridge Test - 25mm

This is a quick test for bridging on a 3D printer.

Bridge Test
Libre Thin Axe Head

This is a customizable thin axe head meant to be printed on a metal RepRap printer like one in the reference links.

Axe, Customizable Axe
Libre Parameteric Chisel

This is a symmetric chisel meant to be printed on a metal RepRap printer seen in the reference links .  This is part of a project being carried out by members of the  Michigan Tech in Open Sustainability Technology Research Group ...

Chisel
Libre Axe Head v1

This is a customizable axe head meant to be printed on a metal RepRap printer like one in the reference links.

Axe, Customizable Axe
Customizable Horseshoe

This is a simple customizable horseshoe.  If you have a  metal printing RepRap  you may even be able to print custom perfect fit shoes for your favorite horse, pony, unicorn, etc. We haven't tested that yet - if you do let me...

Horseshoe
Libre Pickaxe

This is a customizable pickaxe meant to be printed on a metal RepRap printer seen in the reference links.

Pickaxe
Libre Rake

This is a customizable rake is meant to be printed on a metal RepRap printer seen in the reference link.

Farming, Rake
Customizable Ankle Board (1-Axis)

This is a parametric printable ankle board / balance board, which only allows motion in one axis. It is used to rehab ankle injuries, improve balance and agility, core strength, improve athletic coordination, increase ankle motion, and general jedi...

Ankle Board
Free Save the Planet Board Game

Save The Planet Board Game is free and open-source DIY cooperative board game. In the Save the Planet Game you and your family and friends can work together to save the planet to win, while learning how to save the planet in real life. The beginner...

Save The Planet
Solar Simulator Sample Ring

This is an OpenSCAD design of a ring to hold samples for light soaking in a solar simulator. Print and attach sample with binder clips and hold with chemistry clamp as in photo.  This component is part of the Open-source optics project,...

Solar Simulator Sample Ri
Customizable Corn Sheller

Shelling corn is a chore done by hand in much of the rural developing world. Corn comes in different sizes - and the various DIY shellers are a major chore to make. Here you can either use the customizer app or the OpenSCAD to get the right size of...