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John Opsahl

I am actively looking for my next open-ended design challenge.

Dallas, Texas
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25 Followers
22 Following
17 Projects
208 Likes
john-opsahl
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This user joined on 07/09/2019.

4.3k
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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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Live bolder knowing that life does not last forever.
Project Owner Contributor

Live-A-Little

John OpsahlJohn Opsahl

9.5k
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a machine to create canvas paintings of your favorite digital images
Project Owner Contributor

If ( ) Then {Paint}

John OpsahlJohn Opsahl

4.6k
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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

3.3k
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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

2.6k
463
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detect, log, and analyze boat traffic
Project Owner Contributor

BoatDetect

John OpsahlJohn Opsahl

View all 17 projects

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Time to get loggin'! Capture a creative new data set for this data logging contest.
Project Owner Contributor

Data Loggin' Contest

John OpsahlJohn Opsahl

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/

8.4k
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Low-cost device for control mosquitoes, weeds, pest etc.
Project Owner Contributor

Laser device for neutralizing - mosquitoes

IldaronIldaron

3k
37
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E-TKT is a DIY label maker that mixes both old fashioned and contemporary technology to create something as simple as... Labels!
Project Owner Contributor

E-TKT: anachronic label maker

Andrei SperidiãoAndrei Speridião

2.8k
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A hacked tufting gun mounted on a robot arm for CNC textile art
Project Owner Contributor

Robotic Tufting System

Owen TruebloodOwen Trueblood

2.8k
39
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Solar Bottle Lamp is a solar-powered light that is constructed from waste plastic bottles. The design idea is to reuse waste plastic bottles
Project Owner Contributor

DIY Solar Bottle Lamp

Debasish DuttaDebasish Dutta

1.4k
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Simple, inexpensive and dispenses peanuts in exchange for dropping stuff in a hole.
Project Owner Contributor

Nerdfeeder

Stephen ChaseyStephen Chasey

1.3k
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Create complicated film structures using your 3D printer and a piece of sand paper. A fun, useful, one-day project.
Project Owner Contributor

Easy CNC Heat Sealer

Thane HuntThane Hunt

832
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System to turn wasted retail store house paint pigment into (almost) free art supplies.
Project Owner Contributor

Converting Waste Pigments into Art Supplies

technoplastiquetechnoplastique

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If a competing company produced a home-use version of Aperture Science Panels
Project Owner Contributor

T^2 Tiles [gd0095]

kelvinAkelvinA

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I'm working with a bird researcher in Panama to use non-invasive techniques for measuring hummingbird heartbeats
Project Owner Contributor

Hummingbird Heartbeats

Joel MurphyJoel Murphy

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Milk Jugs are made from a highly recyclable plastic (HDPE), which is excellent for Vac-Forming prototypes (rather than using virgin plastic)
Project Owner Contributor

Milk Jug (HDPE) Vacuum Forming

jude_pullenjude_pullen

358
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A power supply solution for products requiring up to 600mA @ 5V from 2 x 55F Capacitors and small 5V Solar Panel
Project Owner Contributor

Solar Super Capacitor Power Supply

Darryl NormanDarryl Norman

334
3
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This project seeks to develop a telescoping pole that can detect both the magnitude and direction of a lateral force acting at its tip.
Project Owner Contributor

Strain Gauge Force Vector Sensing Pole

Austin AllenAustin Allen

309
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Small battery-powered IMU tracker that could be used for motion capturing or to control robotic arms.
Project Owner Contributor

Wireless IMU body tracker

Petar CrnjakPetar Crnjak

265
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Air quality sensor systems for urban bodies of water, so that the population can avoid potentially dangerous exposure
Project Owner Contributor

2022 HDP 4 - Climate Resilient Communities

Supplyframe DesignLabSupplyframe DesignLab

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Put 2 smart sticks in the ground and get your position relative to these sticks with cm accuracy. Uses audible sonar.
Project Owner Contributor

Accurate 2D positioning with 2 sonar beacons.

FieldmanFieldman

130
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This project shows how to connect a SMT100 soil moisture sensor to a Dragino LoRa device and TheThingsNetwork
Project Owner Contributor

Soil moisture sensor with LoRa

Maria PiechaMaria Piecha

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Yet another Ikea stand-up table controller.
Project Owner Contributor

hctrl

rikardonmrikardonm

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Given an image or a video stream, an object detection model can identify which of a known set of objects might be present.
Project Owner Contributor

TensorFlow Lite - Person Detection

DaphneDaphne

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Michael Gardi wrote 06/04/2021 at 11:36 • point

Thanks for your interest in my Exploring Flip Dots project John. 

  Are you sure? yes | no

initrd wrote 03/21/2021 at 19:00 • point

Thanks for following :) 

  Are you sure? yes | no

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