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DIY Professional Grade Welding Table (with FREE Plans)
Tee Slot Drill Press Clamps, Easy and Quick
Water/Feed Level Indicators
Clever idea! For version 2.0, print the hooks in the ring and hub when you 3D print it. Also, print dovetail joints to connect the ring sections using the rubber band force to hold them together (like compressing a stone arch, but with 3D printed interlocking rocks). No solder/welding required.
Low Cost Bench Top Magnetic Particle Spectrometer (MPS)
3D Catan. Designed, 3D Printed and Painted.
Making an African Marimba
How to Build Your Own Anemometer Using Reed Switches, Hall Effect Sensor and Some Scraps on Nodemcu. - Part 1 - Hardware
Multi Drawer Bandsaw Box
Wheel Alignment Tool - "BUILD a TOOL" Contest
Pirate Ship Tree House
Universal Arduino Remote
Onshape.com is free for the first 100 MB and has an open-source code for Feature Script commands, one of which generates involute gears. I made a gear set to run my son's Tonka with an automotive window crank motor.
Getting Started with Glue
How To Make Your Own Sugru Substitute
Baking powder = Baking soda + cream of tartar (a biproduct of winemaking that makes biscuits delicious)
You're just separating the fly specks from the black pepper with this comment.
Most of us had high school chemistry, but forgot plenty. Adding salt will not increase the [H+] ion content (the pH level) of the mixture. How can it be "harsher" if it is no more acidic? In the case of either acid, it's only the hydrogen ions that participate in any reaction. Salt is also known as dehydrated ocean water: just add water (or DHMO). Vinegar is a 5% solution of acetic acid and water. Acetic acid is very similar to ethanol, both of which are already in everything but perfectly distilled water. These chemicals in nearly any quantity are less harmful to the environment than a package of HoHos (ink, plastic, and hardware store products used as fillers and preservatives).
High Tech - Low Buck Digital Torque Meter
DPScope - Build Your Own USB/PC-Based Oscilloscope
The Only knot you need to know.
Hidden Garage door opener (UPDATED)
Creating your First Multi-touch Table