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Opensource Ornithopter Prototype. Arduino Powered and Remote Controlled.
How to Smooth PLA 3D Prints
Sorry but can't see the info on what size sprockets/gears you used and the length and guage of the chain ?
1800 MM X-Carve Upgrade
Discover and Build an Inkle Loom!
Wicked Fast Dremel & Router Bit Organizers Using Dadoes (Instead of Holes)
Nice job.Adafruit board is 5.5g. Lopy board is 7g but might have longer range and can be programmed in python- https://www.adafruit.com/product/3078 35 USD- https://pycom.io/product/lopy4/ 35Euro
Table Saw Jigs
Acrylic Bending Tool
Jig for Cutting Perfect Crown Molding
Large Scale Drawing Compass
Simple Vise Modifications to Bend Metals
3D Printed Gadgets for Woodworking
Love the idea of the corner in the middle. brilliantAlso consider using Inkscape (opensource) and the Lasercut jigsaw extension as a starting point. Then move the lines around.And the tabbed box for the box.- https://inkscape.org/- https://inkscape.org/~Neon22/%E2%98%85lasercut-jig...- https://inkscape.org/~Neon22/%E2%98%85lasercut-tabbed-box
Infinity Mirror Pentagon Shape
Ponoko has mirror acrylic in silver, bronze, or gold (depending on your location)- https://www.ponoko.com/make-and-sell/materials/ponoko-united-states
Running Antilope Machine
Build a Weather Dashboard Using Dark Sky API
Make Your Own Hole Saw and Drill Any Sized Hole in Glass
Easy Step Stool
Knife Grinding Jig
How do you calculate how much wire to cut off. It looks like you thread all the wire through each loop. So you have to cut it off the reel first.
Wood Lathe Duplicator With Angle Grinder
Another great way to print big is to use the free Inkscape vector drawing program, work in the real dimensions you need, exporting as a PDF. And then use poster mode in the standard free Autodesk PDF reader to print over several pieces of paper.There is an inkscape plugin called realscale which can resize any picture using a known dimension which makes camera photos, or jpg reference files more usable.
3D Printed Night Vision Scope
High discharge currents can create a dangerous overheating for LiPo cells. Also these cells should never be discharged below their safe voltage. A protection circuit should be added to help safeguard the battery and user. The battery exploding or catching fire is the result of not doing this.Maximum safe discharge current is given by the "C" rating of the battery. E.g. a 2C battery which is 3000mA capacity means a 6 Amp maximum discharge rate. Ohms law tells us R = V/I. LiPos are 3.7V so 3.7/6 = 0.6 Ohms. Your nichrome wire acts as a resistor and must have a greater resistance than this when measured with a multimeter (make it longer until it is at least this resistance).However this figure of 6Amps is quite large. You probably don't need such a large current draw to heat the ...
High discharge currents can create a dangerous overheating for LiPo cells. Also these cells should never be discharged below their safe voltage. A protection circuit should be added to help safeguard the battery and user. The battery exploding or catching fire is the result of not doing this.Maximum safe discharge current is given by the "C" rating of the battery. E.g. a 2C battery which is 3000mA capacity means a 6 Amp maximum discharge rate. Ohms law tells us R = V/I. LiPos are 3.7V so 3.7/6 = 0.6 Ohms. Your nichrome wire acts as a resistor and must have a greater resistance than this when measured with a multimeter (make it longer until it is at least this resistance).However this figure of 6Amps is quite large. You probably don't need such a large current draw to heat the wire so it can cut styrofoam. At 2Amps the resistance would be 1.8Ohms. So a longer piece of nichrome should be selected until the measured resistance lies in this approximate range.However just this "max current fix" does not protect against over discharge and the low voltage danger.For a LiFePo4 18650 cell the min voltage is 3V. This is harder to ensure you do not go below.The simplest fix for both of these problems is to use a readily available BMS protection borad for a single cell lipo battery. These are sometimes incorporated into 18650 cells and make the cell a little longer than a raw cell. The cell will be marked on its label as having this protection.Or you can purchase these boards inexpensively on Ebay, Aliexpress etc. They are small and round for a single cell so as to fit onto the end of the battery and cost in range of 28 cents to $USD2 each depending on location and quantity. They have only three connections. One for each end of the battery and the output terminal (new posiive terminal) so are easily connected up. Choose one with a max discharge fo 2Amps for this application.Or choose 4Amps if you use better batteries and need a longer hotter wire for a different shape of tool.Search for "18650 Protection Board single" and look for the round ones.
Wire Armature Device
Or a Digispark which is a tiny Arduino based on the ATtiny85. Programmed through the usb port. http://digistump.com/products/1
DIY 18650 Lithium Ion Cells Charging Grid
Multiplying Chocolate Puzzle
The Impossible Puzzle: Made Possible by FDM Printing
The skim milk looking stuff is probbaly a water based polyurethane. It might not be as good as non-water based ones because it might not be as clear. However make sure the poly is UV resistant and will dry clear and not yellow. Then it should be OK.
So thelight bulb acts as a resistor. What does your measure as. About 4k ?
Part Printed Dip Pen
Try using an old electric planar and a chute to chop the plastic. Doesn't matter if the blades are a bit chipped or the planar is old.
Pixel Art Coasters
Sandwich Toaster Plastic Recycling
Code-generated Patterns in Tinkercad
Homemade Cant Hook and Optional Log Lifter
DIY X200 Microscope
6 Simple Gifts You Can Make From Wood
How to Carve Miniature Wooden Wizards
WiFi LED Light Strip Controller
The Fabled Hare (a 3D Printable Ball-jointed Doll)
How to Run a Battery Clock on Solar Power
3 Simple Ways of Programming an ESP8266 12X Module
DIY RESIN PLANK TABLE - How to Make Your Own Using GlassCast® 3 Clear Epoxy Resin
3D Printed Concrete Table Mold
Sound Bending Synth
The Homemade Tilt-Shift Lens
Adding a PIR sensor to turn the lights on could be nice too. Then when someone walked in front of the frame the lights would come on.
Its an optical illusion created by uouir brain which is expecting to see eyeballs which would be convex objects normally but the pingpng balls are inside out and concave. so your brain misinterprets. Disney's haunted mansion has popularised several of these kinds of tricks. See also concave busts where the head of the person also seems to turn to follow you as you walk past. same concave swapped for convex eye illusion.
5 Ways to Print on Wood
Lap Harp, Psaltery
Dr Patrick Firestone's Patented Automatic Circulatory Machine
A simple wood sealer is PVA white glue dissolved in water until runny(like milk). This also seals the wood, is clear, sands away easily, and will prevent the paint from soaking into the wood.
$5 DIY Hot Wire Foam Cutter
If you hit the vaeline with a little heat from a heat gun then it melts justa a little for a nice smooth surface for the mold release in the spoon.
Card & Photo Display Stand
Paper Clay Haunted House!
Sanitary TIG Welding 101: Flask Fabrication
3D Printed Nautilus HiFi Speakers
Instructable Ghost Zoetrope
Huge Battle Axe From a RR-Track
HQ Music Player and Internet Radio With Smartphone Control – Raspberry Pi, PCM5102A, Node-RED
How to Fix Corroded Battery Terminals
Burned Glue Faux Leather Steampunk Arm Cuff
Tiny Moon Tide Clock
30 Minute Pallet Coffee Table
Laser Cut Leather and Wood Phone Case
Create Concrete Products With 3D Printed Molds
Quick Mounted Angle Grinder Power File / Belt Sander.
I've got several speeds of angle grinders. What's the best speed range for a tool like this ?
DIY Sandblasting Cabinet and Etching Glass
Make Your Own Carbide Lathe Tools
Key Lime Pie Ice Cream
Flower String Art
Nuka Cola Quantum Bottles and Caps
All in One Arcade System
Make a 2 Sided, Desktop Infinity Mirror
Easy Way to Hang Odd-shaped Objects on a Wall
Lord Vetinari Clock
The Astronomy Clock
Portable WiFi Analyzer
Milk Jug Skulls
You're only warming it up. Its not burning or melting. Just like the way it softens if you wash it in boiling water. So no fumes at all.
Modern Shop Stool From Two 2×4s
DIY Crystals for Decoration
I MADE a DADO JIG
Folding Lock Knife. or Is It 'locking Fold Knife'?
Spin Art Silhouette
DIY Silhouette Cutting Mats
Brick Wall Drink Coaster