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Simon Merrett

Genesis, analysis, synthesis,

Bristol
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58 Followers
24 Following
8 Projects
128 Likes
simon-merrett
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This user joined on 07/15/2016.

7.9k
344
40
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Strain wave or harmonic drive gears are cool. As a cheap analog for metal or flex filament splined cup, try using timing belts.
Project Owner Contributor

Strain Wave Gear with Timing Belts

Simon MerrettSimon Merrett

603
9
1
11
Use servos, alu profile, timing belt and 608 bearings to make one.
Project Owner Contributor

Cheap Linear Actuator

Simon MerrettSimon Merrett

6.9k
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Much cleverer people hacked the orginal UT390B laser range finder but no-one seems to have published what we know about the UT390+.
Project Owner Contributor

Peek inside UNI-T UT390B+

Simon MerrettSimon Merrett

427
6
9
8
Indoor (lawn) bowls wheelchairs can be motorised to make the sport more accessible. We motorised one with steppers for 10% of a kit cost.
Project Owner Contributor

Stepper-motorised wheelchair

Simon MerrettSimon Merrett

1.1k
94
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6
Audio feedback for the brain-injured who need help learning to balance again.
Project Owner Contributor

SoleSense

Simon MerrettSimon Merrett

108
1
0
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If you want to post project logs with strikethrough text and don't know where to start, try following this project..
Project Owner Contributor

Strikethrough on HaD's <del>Redactor</del> editor

Simon MerrettSimon Merrett

View all 8 projects

26.9k
669
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Modular self-reconfigurable robot, focused on all-terrain search and rescue operations using bio-inspired locomotion mechanisms
Project Owner Contributor

Dtto - Explorer Modular Robot

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Building an open source robot arm for makers and small businesses
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5+ Axis Robot Arm

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or "flip dotters" if you want. Let's just talk about flip-dot/flip-disc displays and projects using them :-)
Project Owner Contributor

Dot flippers

Yann Guidon / YGDESYann Guidon / YGDES

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X carve Inspired Laser CNC machine which can help Develop quality PCB at home without using expensive photography films and dusty milling.
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CNC Laser PCB Maker

manjuprasadmbasangimanjuprasadmbasangi

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Follow this project to learn how to use FPGAs and incorporate them into your projects.
Project Owner Contributor

The Hobbyists Guide to FPGAs

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The WEEDINATOR project continues .... The inevitability of robots working on farms draws ever nearer ....
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WEEDINATOR 2018

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3D printed MakerWheels integrate with standard threaded rods and screws to create low cost linear and rotary motion systems.
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MakerWheel

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Sightless Navigation And Perception (SNAP) translates surroundings into sound, providing continuous binaural feedback about the environment.
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An open source HW & SW motor controller for fine-grained control of brushless DC motors for robotics.
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The most general purpose hobby vise.
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Maker's Vise

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[ an open-access peer-reviewed journal ]
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Hackaday Journal of What You Don't Know

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A credit card size Wireless Temperature & Humidity Node power by CR2032 Coin Cell
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A minimalist 1.5V coin cell led tree with all components and power source confined within a mini breadboard.
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Joule Thief Mini Christmas Tree

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Develop user tracking technology and demo it using a rover robot to follow its user.
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ATtiny45-based Ripoff of Ted Yapo's TritiLED
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ATtiny45 EverLED

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An open-source, 4-channel differential dynamometer for post-stroke rehabilitation. Includes 4 force sensors, device with display and PC soft
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Dynamometer for Post Stroke Rehabilitation

Sergei V. BogdanovSergei V. Bogdanov

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System which allows individuals to gauge how well they are performing crucial pressure relief exercises in their wheelchairs.
Project Owner Contributor

RiseUp! System: Wheelchair Pressure Relief Monitor

drewmandrewman

848
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Create gear boxes with a laser cutter
Project Owner Contributor

GearBoxes.py

Florian FestiFlorian Festi

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Smart insole for diabetic people
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Ebers

Facundo NoyaFacundo Noya

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Easy 3D printer electronics 100% compatible with RAMPS 1.4 / Marlin
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OVM20 Lite

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Couldn't fit another laser into the name
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Lasercut, UV laser PCB printer

JLAMJLAM

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A new kind of gearbox. Holonomic transmission, direct-drive and continuously-variable. From reverse to full-forward, and in any direction.
Project Owner Contributor

The Robot with Balls Experiment

RoGeorgeRoGeorge

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Afdhal Atiff Tan wrote 04/03/2017 at 07:22 • point

Hi Simon, thanks for following my battery balancer project! :)

  Are you sure? yes | no

Simon Merrett wrote 04/03/2017 at 08:41 • point

You're welcome. Julian Ilett would be very interested in this project and his YouTube channel has at least a couple of videos that discuss potential methods for efficient cell balancing.

  Are you sure? yes | no

Afdhal Atiff Tan wrote 04/03/2017 at 16:47 • point

Yup, I've seen his videos. Very interesting indeed.

  Are you sure? yes | no

esot.eric wrote 03/29/2017 at 09:18 • point

Howdy! Thanks for the follow!

  Are you sure? yes | no

Simon Merrett wrote 03/29/2017 at 11:37 • point

Eric(?), you're very welcome! I'm interested in this project because I am interested in robot arms and closed loop control (not experienced). I'm looking forward to reading more about the potential simplicity of your concept. So far, I'm not clear how it would work without resulting in a more complex need to know the states of the other degrees of freedom before working out each element's next move. But as I said, I have no experience of this area so I'm optimistic about the findings.

  Are you sure? yes | no

esot.eric wrote 03/30/2017 at 06:25 • point

Great thoughts, I'll address them in the next log-update! Prepare to be underwhelmed :)

  Are you sure? yes | no

ottoragam wrote 09/26/2016 at 05:54 • point

Thanks for the follow!

  Are you sure? yes | no

Simon Merrett wrote 09/26/2016 at 06:56 • point

You're welcome! Very interesting.

  Are you sure? yes | no

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