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John

Traveling engineer with passion for building useful things

Oak Ridge
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john
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This user joined on 09/09/2014.

59.8k
481
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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

34.3k
290
34
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A 75 watt MPPT Solar Charger with tons of features. Efficiency > 97%, USB interface, data logging, 2 USB charging ports and much more...
Project Owner Contributor

High Efficiency MPPT Solar Charger

lukas-fsslerLukas Fässler

27.4k
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26
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Fully 3D printed x-ray machine using a dental tube and a custom transformer.
Project Owner Contributor

3D Printed X-Ray Machine

francisco-piernasFrancisco Piernas

25.9k
1.5k
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151
For computer vision learners, drone and robot builders, AR/VR and 360 panorama experimenters. Open source hardware.
Project Owner Contributor

StereoPi - DIY stereoscopic camera with Raspberry

eugeneEugene

19.8k
216
16
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A multimeter, based on the STM32F373, which can measure voltage, current and power (both bipolar and DC or true RMS with multiple ranges).
Project Owner Contributor

STM32 Open Source Multimeter

martinMartin

15.9k
2.2k
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This is a design for a low-cost extruder for printing objects directly from recycled plastic flakes instead of using filament.
Project Owner Contributor

Trash Printer - Recycled Plastic 3D Print Head

sam-smithSam Smith

15.6k
144
5
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A living recycling center that eats trash and sunshine and poops recycled plastic objects
Project Owner Contributor

The Metabolizer

sam-smithSam Smith

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3k
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A compact modular design of the strain wave gear for general robotic applications.
Project Owner Contributor

Compact Strain Wave Gear Actuator(s)

leo-vuLeo Vu

15.1k
1.6k
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Need a mini linear actuator that is easy to print and implement in your robotics DIY projects? We got you
Project Owner Contributor

3D printed mini linear actuator

giovanni-lealGiovanni Leal

11.5k
87
15
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Engraving by CNC a special composite, the Hylite, to create folds and hinges. Zatsit, so made, is on Kickstarter until oct 5, 2018. Hurry!
Project Owner Contributor

Folds and Hinges Technology to Make Mechanisms

marc-peltierMarc Peltier

11k
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IMU-based encoders. IMcoders provides odometry data to robots with a minimal integration effort, easing prototyping on almost any system.
Project Owner Contributor

IMcoders

pablo-leyvaPablo Leyva

10.8k
106
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A hardware kit to experiment with inflatable and vacuum based soft robotics.
Project Owner Contributor

Programmable Air

amitabh-shrivastavaAmitabh Shrivastava

10.4k
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10
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BikePin is a small device hidden in the construction of a bicycle which its owner can message and the device will send the bike’s location
Project Owner Contributor

BikePin

marin-vukosavMarin Vukosav

7.9k
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Programmable USB controller modules for gaming, CAD modeling, video editing, and more
Project Owner Contributor

Modular USB Hotkey Controller

cole-bCole B

7.3k
4.7k
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Tomographic scanner using my X-Ray machine, a simple motor to rotate the object and a reconstruction software
Project Owner Contributor

X-Ray CT Scanner

francisco-piernasFrancisco Piernas

6.1k
33
1
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DIY pump controller based on a STM32 and few more parts.
Project Owner Contributor

Open Source Turbomolecular Pump Controller

lucy-fauthLucy Fauth

1.3k
8
1
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Ultra low cost amplifier circuit for pH sensor and 3.3V Microcontrollers
Project Owner Contributor

ultra low cost pH amplifier circuit for 3.3V MCU's

davidDavid

1.3k
1.3k
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Use 3D printing to solve the “Growing Chaos” problem
Project Owner Contributor

Germinate Seeds With a 3D Printed Container

kibot914kibot914

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Kris Winer wrote 06/20/2018 at 15:23 • point

Thanks for following my $25 Spectrometer project!

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Radu Motisan wrote 07/12/2017 at 21:26 • point

Thanks for the follow. You know what this is all about, right?

You can support this effort directly, by making your own KIT1 units or ordering a complete unit on  https://www.uradmonitor.com/join-the-network/

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GrayPillow wrote 05/15/2017 at 10:32 • point

Thanks for Following AnanasStepper 2.0 ！！ https://hackaday.io/project/20980-ananasstepper-20

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Jonathan Bruneau wrote 05/12/2017 at 22:12 • point

Thanks for following my project: #$1/W True MPPT.

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oneohm wrote 10/05/2016 at 07:39 • point

Thanks for following! - you might also like my printer:

https://hackaday.io/project/15584-the-printer

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Patrick Van Oosterwijck wrote 08/06/2016 at 02:51 • point

Thank you for following my #LiFePO4wered/Pi project John!

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danjovic wrote 07/20/2016 at 12:42 • point

Thanks for following #Oh Cheat!

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Keegan Reilly wrote 04/26/2016 at 02:05 • point

Thanks for following my turbopump project! If you have any questions/suggest let me know!

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ken.do wrote 02/17/2016 at 04:25 • point

Thanks for your interest in my project!

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ottoragam wrote 02/16/2016 at 19:51 • point

Thanks for following!

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Eric Hertz wrote 06/12/2015 at 07:50 • point

Howdy! Thanks for the follow!

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