• Monarch Butterfly Walkalong Glider

    I like the creativity, I've thought of doing this once myself but assumed it impossible and illogical in light of modern easily available lightweight materials and printers with which near-perfect butterfly wing replicas can be produced which will be as light but stronger and more easily adjusted for flight ..what's more, I can't deal with killing butterflies to satisfy my curiosity it's a little evil scientist for my tastes.

    View Instructable »
  • wingnutzster commented on walkalongaviation's instructable Foam Walkalong Glider8 weeks ago
    Foam Walkalong Glider

    For what? To replace the foam? no absolutely not, you could however replicate this with poster board but it will not fly as well or stay up as long - there's a reason foam is used and lightness is a fundamental of aeronautics.

    Not a walkalong, it would fly and be stronger but quite a lot heavier and not float as well as lightweight foam, get some meat trays or disposal foam plates

    View Instructable »
  • A Simple Elegant 30 Minute Balsa Glider

    Great design, very elegant looking - perhaps a little more fragile than I would give a kid but the scale performance sailplane look is what I'd make for myself too. Never underestimate the power of simple free flight hand launched gliders like this, this type of model gave me the foundation of a lifetime of aeronautical passion and qualification and application

    View Instructable »
  • wingnutzster commented on gliderxseinther's instructable Nicwell Glider8 weeks ago
    Nicwell Glider

    DON'T BUILD THIS FOR ANYTHING OTHER THAN DISPLAY OR NON-MAN-CARRYING APPLICATION! The disgin is UNSAFE!

    View Instructable »
  • wingnutzster commented on gliderxseinther's instructable Homemade Hang Glider8 weeks ago
    Homemade Hang Glider

    This is why this instructable is irresponsible and dangerous

    I applaud your effort but this is so flawed as a man-carrying flying machine, you've taken images and the simplest aspects of the Ragallo kites but not considered the painful lessons learned through fatalities over time. Your system of weight shift, the structural engineering,and materials used are not fit for aeronautics even just short hops, the Ragallo wing has the ability to climb rapidly and sharply in a gust which is when flight loads become critical and where failures in design and construction will materialize and could very likely cause serious injury or death. You may not have intentions of flying at altitude but somone may follow your design and launch off a mountain or building and die....a simple disclaimer cannot absolve that and trust me you don't want that on your consci...

    see more »

    I applaud your effort but this is so flawed as a man-carrying flying machine, you've taken images and the simplest aspects of the Ragallo kites but not considered the painful lessons learned through fatalities over time. Your system of weight shift, the structural engineering,and materials used are not fit for aeronautics even just short hops, the Ragallo wing has the ability to climb rapidly and sharply in a gust which is when flight loads become critical and where failures in design and construction will materialize and could very likely cause serious injury or death. You may not have intentions of flying at altitude but somone may follow your design and launch off a mountain or building and die....a simple disclaimer cannot absolve that and trust me you don't want that on your conscience. Rework the design, go back to the drawing board and work out the kinks, visit your local hang gliding club and school and get some instruction and a close up look at real gliders...and then share your project as something that can be built and safely flown.

    View Instructable »
  • Homemade Tin Can Turbine With 3d-printed Compressor

    I use Vimeo frequently but have never seen that error, are you sure it's not a technical issue or firewall or similar issue causing that?

    Fantastic achievement, there may not be a direct application for this 'proof of concept' iteration but with some minor engineering this could produce a simple yet effective working powerplant with many applications, I guess the point here was to show what can be done with some basic and attainable materials and some clever engineering....this opens up the previously exclusive domain of Jet power to just about anyone. The next step for me would be to develop a gearbox to turn a turboprop or helicopter rotor - superb instructable!

    View Instructable »
  • Recycling Styrofoam (EPS) Into Useable Castable Styrene Plastic at Home

    Very cool thanks! I have been messing/experimenting with all types of foams in my work in developing model aeronautics and aeronautical parts and as a kid used to make 'napalm' by melting chunks of EPS in petrol - luckily just for my own amusement and never as an actual weapon but I know the Anarchists cookbook lists this as an effective napalm alternative.I think you need to make the distinction here between the different types of foams - the title suggests 'Styrofoam' or XPS also known as extruded polystyrene which is a closed cell rigid foam of varying density used in aeronautics,marine and construction applications but which is expensive and also melts more slowly than EPS and is most often dyed and includes many added contaminants. The more suitable foam as mentioned by you is EPS ...

    see more »

    Very cool thanks! I have been messing/experimenting with all types of foams in my work in developing model aeronautics and aeronautical parts and as a kid used to make 'napalm' by melting chunks of EPS in petrol - luckily just for my own amusement and never as an actual weapon but I know the Anarchists cookbook lists this as an effective napalm alternative.I think you need to make the distinction here between the different types of foams - the title suggests 'Styrofoam' or XPS also known as extruded polystyrene which is a closed cell rigid foam of varying density used in aeronautics,marine and construction applications but which is expensive and also melts more slowly than EPS and is most often dyed and includes many added contaminants. The more suitable foam as mentioned by you is EPS or expanded polystyrene which is the open cell or beaded type most often discarded and quite cheap as such used in many packaging applications,it melts much quicker and is also subject to the gasses you mention which need to be separated from the plastic. What you are left with is a less pure form of the plastic us modellers buy in sheets called styrene which is a relatively soft,heat moldable plastic most plastic model kits are made from because it vacuum forms so well and has a lightness and consistency that enables it's use in the hobby, it is however quite expensive and usually sold in small sizes so if this method can produce enough material with an even consuistency and can be free of contaminats and impurities and rolled into flat sheets you will most definately be on to something! I would love to hear fromanyone who has had success producing this homeade styrene?

    An interesting proposition however I have been very weary of introducing direct heat to most of the foams commercially available since many tend to give off toxic gases when burned, there are some expensive types being introduced in the aeronautical and marine industries that are completely benign and eco friendly, even flame proof but I really believe your method works best on plain white EPS or expanded polystyrene vs styrofoam. As a side thought I would love to experiment using this method on the more rubbery new types like EPP polypropylene and the like which should make for a very interesting and useful goo that would retain its elasticity but be workable and moldable, I can thinkof a number of applications in both my hobby and work.

    The extruded types like the American blue and pink foams, the Eastern green foams and our white 'Isoboard' and surfboard 'Spyder' foams are all very dense and have already undergone a heated extrusion process which tends to cause them to melt slower in fact the German green insulation foam barely melts at all being flame proof but they are all great for shaping and heat forming, the far less dense open cell types like EPS are as you said mostly gas and make for a much purer and cleaner styrene plastic when melted in my experience. I have been fascinated by what many just discard in every type of lightweight rigid foam for many years and used to pick up and collect every scrap I could find as a kid as in my passion of shaping and building aerostructures this has been my favorite and most...

    see more »

    The extruded types like the American blue and pink foams, the Eastern green foams and our white 'Isoboard' and surfboard 'Spyder' foams are all very dense and have already undergone a heated extrusion process which tends to cause them to melt slower in fact the German green insulation foam barely melts at all being flame proof but they are all great for shaping and heat forming, the far less dense open cell types like EPS are as you said mostly gas and make for a much purer and cleaner styrene plastic when melted in my experience. I have been fascinated by what many just discard in every type of lightweight rigid foam for many years and used to pick up and collect every scrap I could find as a kid as in my passion of shaping and building aerostructures this has been my favorite and most versatile material so to be able to effectively melt down and create a byproduct that should be quite good for heat forming and molding and is lightweight adds an extra dimension I am very keen to explore

    not likely most XPS has a higher melting point than that of boiling water, it would be like melting plastic in water - I don't believe even the chocolate melting method of melting chunks in an empty pot suspended over another pot of boiling water would work - it would require direct heat and would be a highly toxic and messy affair but the biggest problem is that it immediately hardens into an unusable shellac type material

    View Instructable »
  • wingnutzster commented on Aleator777's instructable Apple II Watch1 year ago
    Apple II Watch

    Absolutely brilliantly conceived and executed you are truly what this site is all about - you made my week thank you

    View Instructable »
  • wingnutzster commented on John deCaux's instructable Fastest Way to Cut a Bell Pepper1 year ago
    Fastest Way to Cut a Bell Pepper

    I run a diner in a small town, we are a classic bike themed diner/workshop place of interest - a vintage and classic biker's paradise, we just opened actually to rave reviews. One of my most popular offerings is the 'Ducati' burger rich in red peppers and chilli and this tutorial opened up a whole new idea in how I present the burger - thank you

    View Instructable »
  • wingnutzster commented on Paige Russell's instructable 10 Unusual Uses for Lemons1 year ago
    10 Unusual Uses for Lemons

    A stick of copper and one of zinc pressed into opposite ends of a lemon will produce current enough to charge a USB device

    View Instructable »
  • DIY Hot Wire Cutter for Plexiglass, Cardboard and Foam

    Definately not a good idea to short circuit a lipo - I would replace the lipo with a power supply unit or variable charger - a lipo that is shorted like this will expand and explode....and I have a mate who burnt his dad's loft down with a 2 cell - imagine what a bigger lipo could do to your face?!

    View Instructable »
  • wingnutzster commented on Artsy Fartsy's instructable Water & Glue... Who Knew?2 years ago
    Water & Glue... Who Knew?

    Nice, hobbyists like myself have used cold glue and water as a coating for model aircraft for years, add this mix to brown paper or newspaper and you have a not half bad fiberglass alternative. Here's a question though, would modge podge or this concoction be suitable as an eggshell/protective coating on polystyrene, styrofoam etc?

    View Instructable »