# Emulate mouse to draw Chord on the computer screen! by Hari Wiguna, Jan 2021 import time import board import digitalio import usb_hid from adafruit_hid.mouse import Mouse import math class Point: def __init__(self, xx, yy): self.x = xx self.y = yy...
The original design by Makeblock was ok, but the software they provided was awful. What began as a plan to switch out the electronics with GRBL compatible replacements, somehow ended up as somewhat of a redesign. In particular I wanted the z axis to...
To fast prototype interconnection PCBs using direct ink on copper, I made a simple pen plotter using some old printers part. The y axis is a carriage of a dot matrix printer, the z axis is a part of a small impact printer, the x axis is simple a wood...
The goal of the NoteOn project is to create a smart pen that is better than the ones currently on the market. It should be small, wireless, and self-contained.Small: Most smart pens are 12mm or more in diameter. Normal writing implements generally range...
SPROUT is a difficult project for advanced users. It consists of the following components: 3D printed partsAll parts that can be produced with the 3D printer are available for free. Download them from PrusaPrinters: https://www.prusaprinters.org/de/prints/42021-sprout-brawl-stars-robot...
Problem: Previously we had whiteboards that had laminated indicators velcroed on. These were placed on the sides of the partitions between the desks, all faced the walkway so you had to kneel down to write on them. Plus, many were obscured from view...
all you really need for this is a vinyl blade holder and a short length of tubing.I used a piece of 3/8ths ID steel tubing but even a pen tube might work if you can find the right diameter. you can use masking tape to wrap the end of the blade holder...
Some notes on building the board:I used 0805 passive parts. They aren't the smallest but they are much easier to place by hand than 0603.The MCU and SI1132 present a challenge to me as I don't want to do a solder stencil at the moment and the pads are...
I actually attempted this once before. That time, I figured there was no way I'd heat the whole QFP up enough to get it off without screwing up other parts. There are parts on both sides, so you can't just wantonly heat it up. So, I got out a dremel...
Inspired by what is admittedly a humorous image at first glance ( http://i0.wp.com/makezine.com/wp-content/uploads/2016/03/stock-photo-beautiful-woman-repair-soldering-a-printed-circuit-board-204001492.jpg ), I stopped and actually picked up my (cold)...
The software that runs the TurtlePlotBot is modular and includes the turtleplot module. The turtleplot module contains the methods needed to turn turtle graphics commands into simple movements. You can use the turtleplot module...
Etch-A-WhiteboardAutomated Precision Drawing for the Artistically ImpairedNate Foss and Alex HogansonAutomation and Robotics Research LabThomas Jefferson High School for Science and Technology2015-16Table of ContentsAbstract 3Introduction 4Literature...
The general plan and choices made beforehandThe most important property of an FPV video feed is latency. When the latency of the video is too high, the plane becomes uncontrollable. Half a second is a lot of latency. Latency originates from multiple...
Look ! This marker is dancing to the Duke Nukem theme ! How was it done ??Well it started with me buying some flexinol (muscle wire) to experiment :So first I explored the use of this Flexinol as an actuator :The 'muscle wire' contracts when running...
I saw a couple of these drawing robots at the Portland Maker Faire. There are a few commercial ones available: Makelangelo, Polargraph, QuickDraw Bot. The basic version consists of two stepper motors mounted to the corners of board. Pulleys hang down...