Space Weaver: a Seven Foot Tall 3D Weaving Machine
Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE
3D Printed Tool Hanger
Thank you! I have tried Kevlar and Carbon fiber but a very even diameter thread is required for this to work (carbon fiber and Kevlar tow frays too much) - I have managed to find thin Kevlar sowing thread but have yet to try it.
3D Printing Bio-composites
This is really good stuff! Recently I did something similar but used nylon as the matrix of the composite.https://www.instructables.com/id/3D-Printing-High-Strength-Bio-composites/
This is really nifty! I could do with one of these for doing more rigorous testing of my 3D printed cotton biocomposites - https://www.instructables.com/id/3D-Printing-High-...
Thanks! Yes, I was thinking about that - the inlet angle could be made really shallow to reduce friction. And you could introduce the cotton after the drive gear.
600 Watt, 3d-printed, Halbach Array, Brushless DC Electric Motor
Create a Parametric 3d-printable Slew Bearing With Fusion 360
3D Printing High Strength B...View Instructable »
Yes a light sensor would do a better job, a timer has to be adjusted throughout the year
Although I did not produce circuit diagrams I do have a parts list (Sorry this is pretty general but may give you an idea...): L9110 motor driver (is able to control 12V motors as long as the current draw is less than 800mA which may not be enough)Arduino pro mini (But Nano would be better, easier to reprogram in the field)DS1302 real time clock module (a light sensor could also be used instead/in conjuction with)3 push to make buttons - Plus, Minus and Enter128 x 64 OLED I2C or SPI displayMOSFET for controlling lights if you want them during the winter months (could use 12 Volt strip lighting)I'm powering my version off a small USB power bank constantly being charged via USB so acted as an uninterruptible power supply.Hope this helps...Charlie
Unfortunately the Tp4056 has a preset charge voltage of 4.2 volts meaning a separate charger board would be needed for each cell. By connecting the input voltage of each charger board to each other the batteries could be charged at the same time possibly. Just check my logic.
Thanks! I hope my code can be useful
Arduino Rocket dataloggerView Instructable »
Geoweaver: A Walking 3D Printer Hexapod
Fiber Composite 3D Printing (The Bug)
You could try the really cheap HX11 load cell amplifier and ADC to increase force measuring resolution (24 bit ADC). Only cost about £1 and are simple to interface with Arduino.
TestrBot: The $300 Universal Test Machine
RFID Reader Detector and Tilt-Sensitive RFID Tag
Wireless upload program to Arduino without USB cable
Connect Arduino Uno to Android via Bluetooth
DIY EEG (and ECG) Circuit
Farma: a home bioreactor for pharmaceutical drugs