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John Opsahl

I am actively looking for my next unbounded design challenge.

Dallas, Texas
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9 Followers
21 Following
7 Projects
106 Likes
john-opsahl
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This user joined on 07/09/2019.

3.3k
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a custom three axis cnc machine for carving candles.
Project Owner Contributor

CNC Candle Carver

John OpsahlJohn Opsahl

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a machine to create canvas paintings of your favorite digital images
Project Owner Contributor

If ( ) Then {Paint}

John OpsahlJohn Opsahl

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create canvas paintings from digital images using a standard three axis cnc machine
Project Owner Contributor

Project Convert To Paint

John OpsahlJohn Opsahl

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detect, log, and analyze boat traffic
Project Owner Contributor

BoatDetect

John OpsahlJohn Opsahl

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hacks to avoid touching shared surfaces in public spaces
Project Owner Contributor

Hands-Free

John OpsahlJohn Opsahl

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a safe, low-cost IV fluid warmer solution; for when commercially available IV fluid warmers are too expensive or cannot be sourced
Project Owner Contributor

OpenFluidWarmer

John OpsahlJohn Opsahl

View all 7 projects

Things I've Built

Automated 5 Gallon Bucket Feeder

A custom 5 gallon bucket feeder for pets.
https://www.instructables.com/id/Automated-5-Gal-Bucket-Feeder/

yaxb

A joystick controlled wall plotter with record and playback capabilities.

Skittle Pixel8r

A machine that creates images using Skittles as pixels. https://www.instructables.com/id/Skittle-Pixel8r/

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This is my 3D printed 3-axis motion control slider for my DSLR camera.
Project Owner Contributor

3-Axis Camera Slider

Isaac ChasteauIsaac Chasteau

3.3k
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Teensy Flight Controller and Stabilization
Project Owner Contributor

dRehmFlight VTOL

Nick RehmNick Rehm

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WaterAid is an IoT empowered, smart water quality monitoring device enabling remote data collection and visualisation on a dashboard.
Project Owner Contributor

WaterAid

Andrei FlorianAndrei Florian

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An open-source IoT platform to monitor and prevent epidemics such as Malaria, Dengue and the Zika Virus.
Project Owner Contributor

Solar Scare Mosquito 2.0

PranavPranav

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Look at electronics to control them. Open hardware!
Project Owner Contributor

Hypervisor: Optical Touchscreen

Zack FreedmanZack Freedman

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The 2020 HDP Dream Teams are participating in a two month engineering sprint to address their nonprofit partner. Follow their journey here.
Project Owner Contributor

2020 HDP Dream Team: Conservation X Labs

Supplyframe DesignLabSupplyframe DesignLab

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Experimental case testing 3D printed "waterproofing" and water resistance.
Project Owner Contributor

Water Resistant 3D Printed Enclosures

ProgressTHProgressTH

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Home Add-On for cooling food, maybe even a room, without electricity or fuel, in hot climates.
Project Owner Contributor

Free Cooling of food or rooms in hot climates

CatCat

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It's DIY Pulse Oximeter using cheap and general parts and 3D printer, not need dedicated parts.
Project Owner Contributor

DIY Pulse Oximeter w/o dedicated parts

piONE.jp channelpiONE.jp channel

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In the last few weeks I built a tiny TIG welder for using it on a 3D Powder Printer, which I want to test in this project.
Project Owner Contributor

Arc Welding & Powder Printing (Proof of Concept)

Dominik MeffertDominik Meffert

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The 2020 HDP Dream Teams are participating in a two month engineering sprint to address their nonprofit partner. Follow their journey here.
Project Owner Contributor

2020 HDP Dream Team: UCPLA

Supplyframe DesignLabSupplyframe DesignLab

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High-power ultraviolet flashlight for curing UV adhesive (https://bit.ly/FldRdy-DB)
Project Owner Contributor

UVA

Said Alvarado MarinSaid Alvarado Marin

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Design and Development of an Underwater Explosion Detection Robot for Monitoring Dynamite Fishing in the Philippines
Project Owner Contributor

CBobby

ifthekhar ahammadifthekhar ahammad

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The 2020 HDP Dream Teams are participating in a two month engineering sprint to address their nonprofit partner. Follow their journey here.
Project Owner Contributor

2020 HDP Dream Team: CalEarth

Supplyframe DesignLabSupplyframe DesignLab

744
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The 2020 HDP Dream Teams are participating in a two month engineering sprint to address their nonprofit partner. Follow their journey here.
Project Owner Contributor

2020 HDP Dream Team: Field Ready

Supplyframe DesignLabSupplyframe DesignLab

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Creative expression tool for cerebral palsy patients
Project Owner Contributor

Magpie MIDI - An Adaptive MIDI/Interface Harmonica

Shu TakahashiShu Takahashi

520
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A high performance 3D-printed harmonic drive
Project Owner Contributor

Embedded Strain Wave Actuator

CameronCameron

150
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Open source UV curing wand
Project Owner Contributor

Photon

MileMile

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