Resystech solar tracking

https://www.resystech.com/solar-tracking-system.html

wind plans
https://www.resystech.com/1-kw-axial-flux-hawt.html with renewablesystemstechnology.com rotor design plans.
 * cut perfect circle with mini grinder

evaporative cooler
https://www.resystech.com/hvac-1-desiccant-rotor-testing.html

Reaper turbine
https://www.youtube.com/watch?v=EQAbjVUMcCc&list=PLdO3Wk-XPC_CtUfvB1-c2oejDDCFLLRae In this video I build a coil winder for winding the coils for the axial flux stators in the Reaper turbine. This coil winder includes features that eliminate some of the frustration that’s often involved with winding your own DIY coils by hand. Using a drill to drive the winder offers the ‘hands-free’ ability to lock the winder in a particular position during operation, if ever needed (most modern drills won’t turn in reverse if they’re switched to turn in the forward position and vice versa, which is what you’ll want for this project - check you drill to be sure).

The wire lock located between the two guide pulleys allows the user to lock the wire(s) in place to keep it from unraveling back onto the spool when cut. The wire lock can also be used to add a bit more drag on the wire to keep it tight and help control the drill speed too if necessary.

The spring loaded spool supports lightly squeeze the spools within the frame to keep them from spinning out of control, while the upper spring loaded pulley shaft helps to keep the wire tight as it’s being cut. With this jig properly tuned, all you need to do is guide the wire and pull the trigger.

vacuum
https://www.youtube.com/watch?v=J5sPsZR8i8A&index=3&list=PLdO3Wk-XPC_CtUfvB1-c2oejDDCFLLRae

https://www.resystech.com/vacuum-injection-stator-mold.html In this video I build a vacuum injection mold for casting axial flux stators. The mold is made from flexible silicone rubber to make demolding the cast easier. It fits 12 coils (with up to 80 turns of 14 awg wire per coil), and forms a 5/8" (16mm) thick stator cast. I also built a degassing chamber for degassing resin (ie: removing air bubbles after mixing) and a resin trap to catch excess resin before it enters the vacuum pump and ruins it. If you don't want to use vacuum injection or find it intimidating, then the mold can also be used conventionally too. Being made of mainly flexible silicone rubber, it can be used many times. A big step above regular 'one time use' wooden molds. Multiple molds could theoretically be connected to the vacuum system and cast simultaneously as well, to facilitate efficient mass production in a commercial setting if desired.

links
Solar Tracking

Wind energy

backroom labs wind turbine