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Collection by Martin B.

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Wind turbines. Enough to supply about 10.000 kWh or 10 MWh annually. "We built a 1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It's a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed to a charge controller. The magnets spin with the wind, the coils are fixed, so no brushes or slip rings necessary." - MUCH cheaper. Just one foot. Designed to give to higher windspeeds, possibly by using a semi-flexible foot.

50 Watt DIY Small Wind Turbine Kit

Wind turbines. Enough to supply about 10.000 kWh or 10 MWh annually. "We built a 1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It's a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed to a charge controller. The magnets spin with the wind, the coils are fixed, so no brushes or slip rings necessary." - MUCH cheaper. Just one foot. Designed to give to higher windspeeds, possibly by using a semi-flexible foot.

HHO Generator - Water to Fuel Converter

HHO Generator - Water to Fuel Converter

For this project let's build a sexy looking generator that uses electricity to convert water into an extremely powerful fuel! Here's how to build an Oxy-Hydr...

Splicing water bottles. For storing compressed oxygen to be used with ethanol/aluminium powder gas jet burner/furnace. Either this or a used propane tank.

Pressure Test 200PSI (14Bar) Water Rocket Spliced Bottles

Splicing water bottles. For storing compressed oxygen to be used with ethanol/aluminium powder gas jet burner/furnace. Either this or a used propane tank.

Electric furnace. Completely sealed/no heat loss due to air movement. Anaerobic atmosphere to avoid combustion.

How To Make An Electrical Arc Furnace

How to hack flashlight batteries and a fire brick, into a desktop arc reaction chamber. ...For hobby metal melting, and for science! Some quick links to a fe...

Primitive steam engine provides work, thus freeing up workers and reducing need for draft animals. The goal of any society is to minimize the number of people occupied with manual labour and maximizing the number of skilled craftsmen/artisans, scientists, artists etc.

Primitive steam engine provides work, thus freeing up workers and reducing need for draft animals. The goal of any society is to minimize the number of people occupied with manual labour and maximizing the number of skilled craftsmen/artisans, scientists, artists etc.

Other Pins

DIY vacuum chamber (a concrete cylinder with a couple of layers of glass for a window covering the top. Could also be used as a high-pressure chamber, if weight is added to the glass window.

My Woodworking Site

DIY vacuum chamber (a concrete cylinder with a couple of layers of glass for a window covering the top. Could also be used as a high-pressure chamber, if weight is added to the glass window.

Sprengel Vacuum Pump: The most efficient pump ever?

Sprengel Vacuum Pump: The most efficient pump ever?

Sprengel Vacuum Pump: The most efficient pump ever?

Wind turbines. Enough to supply about 10.000 kWh or 10 MWh annually. "We built a 1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It's a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed to a charge controller. The magnets spin with the wind, the coils are fixed, so no brushes or slip rings necessary." - MUCH cheaper. Just one foot. Designed to give to higher windspeeds, possibly by using a semi-flexible foot.

50 Watt DIY Small Wind Turbine Kit

Wind turbines. Enough to supply about 10.000 kWh or 10 MWh annually. "We built a 1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It's a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed to a charge controller. The magnets spin with the wind, the coils are fixed, so no brushes or slip rings necessary." - MUCH cheaper. Just one foot. Designed to give to higher windspeeds, possibly by using a semi-flexible foot.

HHO Generator - Water to Fuel Converter

HHO Generator - Water to Fuel Converter

For this project let's build a sexy looking generator that uses electricity to convert water into an extremely powerful fuel! Here's how to build an Oxy-Hydr...

Splicing water bottles. For storing compressed oxygen to be used with ethanol/aluminium powder gas jet burner/furnace. Either this or a used propane tank.

Pressure Test 200PSI (14Bar) Water Rocket Spliced Bottles

Splicing water bottles. For storing compressed oxygen to be used with ethanol/aluminium powder gas jet burner/furnace. Either this or a used propane tank.

Electric furnace. Completely sealed/no heat loss due to air movement. Anaerobic atmosphere to avoid combustion.

How To Make An Electrical Arc Furnace

How to hack flashlight batteries and a fire brick, into a desktop arc reaction chamber. ...For hobby metal melting, and for science! Some quick links to a fe...

Primitive steam engine provides work, thus freeing up workers and reducing need for draft animals. The goal of any society is to minimize the number of people occupied with manual labour and maximizing the number of skilled craftsmen/artisans, scientists, artists etc.

Primitive steam engine provides work, thus freeing up workers and reducing need for draft animals. The goal of any society is to minimize the number of people occupied with manual labour and maximizing the number of skilled craftsmen/artisans, scientists, artists etc.

How to Build an Acrylic Aquarium: 11 Steps (with Pictures)

How to Build an Acrylic Aquarium

If you're planning to build your own aquarium, you may be considering opting for acrylic instead of glass. Not only is acrylic lighter than glass and less likely to shatter, but it's also easily molded, making it an ideal choice for a...

Hydraulic robot arm. Replace the manual input with (electric motors, threaded rods and polarity reversing switches) and you can do it all using buttons, not levers (this allows greater distance between robot and operator). Mechanical advantage would have to be derived from the gear ratio. This would allow much more precise work too. Achieving a 360-degree rotation from linear movement: 2 gears where half rotation from big gear = 1 full rotation of small gear.

Hydraulic robot arm. Replace the manual input with (electric motors, threaded rods and polarity reversing switches) and you can do it all using buttons, not levers (this allows greater distance between robot and operator). Mechanical advantage would have to be derived from the gear ratio. This would allow much more precise work too. Achieving a 360-degree rotation from linear movement: 2 gears where half rotation from big gear = 1 full rotation of small gear.

ETHANOL gas jet burner. A can with small hole in top & with a syringe needle placed over the hole. Can is filled with ethanol/veggie oil & placed on hot coals. Ethanol/oil vapors then ignited. Can is insulated. Smaller syringe inside bigger one delivers oxygen (preheated). Let air inside when can is cooling down to prevent implosion & let fuel "boil" for some time before igniting it to prevent explosion. For welding: a stoichiometric fuel/oxygen mix. For cutting metal: "too much oxygen" mix.

ETHANOL gas jet burner. A can with small hole in top & with a syringe needle placed over the hole. Can is filled with ethanol/veggie oil & placed on hot coals. Ethanol/oil vapors then ignited. Can is insulated. Smaller syringe inside bigger one delivers oxygen (preheated). Let air inside when can is cooling down to prevent implosion & let fuel "boil" for some time before igniting it to prevent explosion. For welding: a stoichiometric fuel/oxygen mix. For cutting metal: "too much oxygen" mix.

Superpowerful Flame 5072 ℉ • Produce Hydrogen from Water - Do it yourself

Superpowerful Flame 5072 ℉ • Produce Hydrogen from Water - Do it yourself

Superpowerful Flame 5072 ℉ • Produce Hydrogen from Water - Do it yourself

Sliding mesh transmission.

Sliding mesh transmission.

Homemade bench vise, using a bolt and matching nut. A vise requires two hard surfaces. One surface can be installed on top of the nut, whereas the other surface attaches to the bolt further away, specifically by having the bolt go through a drilled hole in the "surface" and a washer on the other side to allow the bolt free movement/rotation while simultaneously making that rotation force this 2nd surface closer to the first one on top of the nut. Bolt can be a lot shorter and thinner.

Homemade bench vise, using a bolt and matching nut. A vise requires two hard surfaces. One surface can be installed on top of the nut, whereas the other surface attaches to the bolt further away, specifically by having the bolt go through a drilled hole in the "surface" and a washer on the other side to allow the bolt free movement/rotation while simultaneously making that rotation force this 2nd surface closer to the first one on top of the nut. Bolt can be a lot shorter and thinner.

How To Use A Metal Lathe

YouTube

How To Use A Metal Lathe

DIY GREEN SAND FOR CASTING - CHEAP, SIMPLE and FAST - MSFN

DIY GREEN SAND FOR CASTING - CHEAP, SIMPLE and FAST - MSFN

DIY GREEN SAND FOR CASTING - CHEAP, SIMPLE and FAST - MSFN

OR: have a 2nd furnace used solely for heating rocks, to be placed in an insulated pit and have air blown across them, pre-heating the air before it enters the forge. (requires 3 pits in total, one for forge, one for rock-heating furnace, one for hot rock storage and air-preheating.)

OR: have a 2nd furnace used solely for heating rocks, to be placed in an insulated pit and have air blown across them, pre-heating the air before it enters the forge. (requires 3 pits in total, one for forge, one for rock-heating furnace, one for hot rock storage and air-preheating.)