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John Opsahl

Hard, open-ended problem? Lets solve it.

Kansas City, Missouri
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29 Followers
22 Following
19 Projects
john-opsahl
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This user joined on 07/09/2019.

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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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monitor the health of trees and fruit
Project Owner Contributor

OpenDendrometer

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

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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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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

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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

View all 19 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/

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Python-powered machine vision modules
Project Owner Contributor

OpenMV

iabdalkaderi.abdalkader

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Hobby brushless motors are incredibly cheap and powerful. However we need a way to make robots out of them. ODrive is that way.
Project Owner Contributor

ODrive - High performance motor control

oskar-weiglOskar Weigl

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A versatile autonomous environmental drone using a buoyancy engine
Project Owner Contributor

OSUG: Open-Source Underwater Glider

alexwalexw

159.3k
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890
High Power, High Performance 400V 300A 100+kW Motor Controller fully compatible with VESC®
Project Owner Contributor

Axiom: 100+kW Motor Controller

marcosMarcos

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871
Mechaduino is an affordable, open-source, industrial servo motor. Position, torque, velocity, and custom modes. Arduino compatible.
Project Owner Contributor

Mechaduino

jcchurchjcchurch

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Build your own touch screen solution adapted on your TV by using some CIS or CCD sensors from old scanners
Project Owner Contributor

Magic Frame : Turn Everything into a Touch Area

jeanperardeljean.perardel

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A family of tiny robots, each with their own way of life.
Project Owner Contributor

Tiny robot family

shlonkinshlonkin

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A powder and inkjet 3D printer based on HP45 inkjet technology
Project Owner Contributor

Oasis 3DP

yvo-de-haasYvo de Haas

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830
SatNOGS is an open source satellite ground station network, optimized for modularity, built using affordable tools and resources.
Project Owner Contributor

SatNOGS - Global Network of Ground Stations

pierros-papadeasPierros Papadeas

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1.6k
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FarmBot is an open-source CNC farming machine and software package built for small scale, hyper local, DIY food production.
Project Owner Contributor

FarmBot - Open-Source CNC Farming

rory-aronsonRory Aronson

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A powerful, compliant actuator for legged robotics
Project Owner Contributor

OpenTorque Actuator

gabrael-levineGabrael Levine

97.8k
970
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Modular Open Source Hardware Tablet that is easy to hack and can run a standard Desktop Linux Distribution (or Android)
Project Owner Contributor

DLT one - A Damn Linux Tablet!

timonskutimonsku

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4k
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Portable Power Platform for Pi Zero
Project Owner Contributor

PiSugar Battery for Raspberry Pi zero

jdaieJdaie

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An Odrive + steppers based construction, with 5x 3D printed hollow shaft reducers and an internal CAN network.
Project Owner Contributor

Atlas - 6DOF 3D printed universal robot

damian-lickindorfDamian Lickindorf

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A small Portable Wind Turbine, mostly 3D printed!
Project Owner Contributor

3D PRINTED PORTABLE WIND TURBINE

adriancubasadriancubas

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Single rotor, "singlecopter", selfmade drone with air vanes for position control as a full remake of the Ball-Drone Project
Project Owner Contributor

The Ball-Drone Project MK II

benjamin-prescherBenjamin Prescher

72.8k
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Lowering the cost of Refreshable Braille Cells by using Electromagnetic Cam Actuators & 3D Printing
Project Owner Contributor

Electromechanical Refreshable Braille Module

vijayVijay

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AMS's new AS7265X 3-chip set promises a compact, 18-channel, 20 nm FWMH spectrometer for less than $25
Project Owner Contributor

Compact, $25 spectrometer

kris-winerKris Winer

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VALENTINE wrote 11/23/2023 at 17:54 • point

Thank you. Cheers! Valentine

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mihai.cuciuc wrote 11/18/2022 at 05:47 • point

Hi John! Thanks for your interest in #Squeak: GPS pet tracker 

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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. 

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

Thanks for following :) 

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