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Folding Kayak Builders Manual - Homebuilt Folding Kayaks by Thom. Fiberglass , Epoxy , Composites, Carbon Fiber - U.S. Composites, TAP Plastics. Snap Buttons. Vinyl Fabrics. Paintings, Drawings & Sculptures - Pen and Ink Drawings. Hot wire foam cutter. The parts should be pretty easy to find. 1. 12 foot, 16 guage extension cord, about $2 at Home Depot 2. 2 wooden yard sticks from the Home Depot paint department, $.97 each 3. 4 #10-24 x 1.25" machine screws with nuts, $1 at Home Depot 4. 10 #10 washers, $1 at Home Depot 5. 6. 7. 8. 9. 10. 11. Hot Wire Foam Cutter. When I first started down the road to green sand metal casting, I figured I'd use the lost foam method. To cut the foam, I built a hot wire foam cutter. The principle is easy - a wire is headed electrically and melts it's way through foam.

In use, it is similar in function to a jigsaw or band saw, though with the addition of a fence it can be used like a table saw. Mine was built entirely out of stuff I had in the basement - a chunk of blue particle board, a brass plated pipe (originally a ceiling fan support), a unidentified metal rod of some sort, springs, wires, etc. The usual crap you've got rolling around in the bottom of your tool box (well, maybe not the particle board).

Even the transformer was something I had. (The only thing I had to buy was the light dimmer, and I only had to buy that because the one I had got put to use in the dining room and my wife wouldn't let me have it back.) The first step was to drill a hole in the pipe to insert the metal rod. Back. Building a Hot Wire Foam Cutter. Hot wire foam cutters work by heating special wire to the point where it vaporize foam it is brought in contact with. It is a technique commonly used commercially and hot wire foam cutters are available for any where to several hundred to several thousand dollars. Heck, I will happily sell you mine for a fraction of that but you should probably know that it only cost me $4 to buy the resistance wire or nichrome plus maybe $15 - 20 dollars in scrap stock I already had.

I leave it to the reader to supply their own power supply. I am using a supply from an old external SCSI drive. My cutter runs from the five volt supply and 25cm of nichrome wire pulls about 900mA or 4.5 watts. My design is pretty simple and breaks down into four parts; base, top, shuttle, and cutting arm. Electronic Equiptment - DIY LM317 power supply. Being able to poke voltages into your projects will help you debug. You can buy an adjustable power supply for $50 or so, or build your own from a kit (another one) Just look for any power supply kit that has a LM317 in it. You can also build it for $10 using a 9V battery as input and test clips for outputs. This won't be able to provide a lot of power (cause its just a 9V) but it can go pretty far for testing and debugging The schematic is adapted from the one on page 9 of the datasheet and, yet, there is a mistake!

Note that the LM317 is NOT connected to ground at any pin! Hobby Power Supply Kit using LM7805. Hobby Power Supply Kit This is a practical power supply for all your projects. It uses two 7805 regulators; input up 35 volts AC or DC from a transformer or other power source. There are two outputs; one regulated at 5 VDC, and the other one is variable. This is an excellent introduction to power supplies - DIY Kit 4. Specifications: L: 3-1/4" W: 2-1/8" H: 2" Input Voltage: Up to 35Volts AC or DC (requires 2 volts above desired max output voltage) Output Voltage: 5VDC fixed and Variable 5 - 33VDC Output Current: Up to 1Amp Includes plastic case and heat sinks Includes on-chip circuitry for overload protection NOTE: This is not a line level (117VAC) circuit. See CK400.pdf for complete details, including schematic and theory of operation.

Wood Kayak Designs, Plans, and Kits by Redfish Kayaks. Guillemot Kayaks | High Performance Wooden Small Boats - Build Y. Wooden kayak designs by One Ocean Kayaks.