Anfisbena is my first plywood boomerang Inspired by Pierre Kutek's carbon boomerang "Kayabonga 2" 2'5mm plywood, spray painted Amphisbaena is a mitological creature consisting of a snake with a head on each end. The project started as a gift for a left handed amateur thrower (this is indeed version 3 of the project) and I loved the design so much that I had to make one for myself. Tuned to almost zero wind How do you like it? :)

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Telekinesis (by means of a ring of air)

I can't really think of a reason why the piston returns to the original position!! any ideas?? I made a transparent QEV coaxial cannon out of the preform of a bottle. This was inspired by a Nighthawkinlight's project, although I added a transparent barrel and had to make everything work with a wooden piston and o-ring seal. The breech seal is just a piece of rubber from the inner tube of a bike tire. Thanks for watching!

Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). 1/8th speed (15fps) and improved video performance because somehow Youtube cropped the last frames of the other videos (?) I didn't quite understood the need for a razor blade but without one I still see the flow of air. For me, the razor blade just makes the dot of light smaller(?) If anyone can clarify me what the razor blade really does and where it should be placed (in the source of light or in the camera) I'd really appreciate. Also important to note that this is AWESOME to look with the naked eye but almost the dimmest light can blind you. I covered a tiny LED torch with aluminum foil and punctured a hole with a sewing needle, on the side! so that the LED doesn't bright directly through the hole. Take care with the eyes!!

Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Unedited at normal speed. I didn't quite understood the need for a razor blade but without one I still see the flow of air. For me, the razor blade just makes the dot of light smaller(?) If anyone can clarify me what the razor blade really does and where it should be placed (in the source of light or in the camera) I'd really appreciate. Also important to note that this is AWESOME to look with the naked eye but almost the dimmest light can blind you. I covered a tiny LED torch with aluminum foil and punctured a hole with a sewing needle, on the side! so that the LED doesn't bright directly through the hole. Take care with the eyes!!

Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Edited from to 1/4th normal speed. I didn't quite understood the need for a razor blade but without one I still see the flow of air. For me, the razor blade just makes the dot of light smaller(?) If anyone can clarify me what the razor blade really does and where it should be placed (in the source of light or in the camera) I'd really appreciate. Also important to note that this is AWESOME to look with the naked eye but almost the dimmest light can blind you. I covered a tiny LED torch with aluminum foil and punctured a hole with a sewing needle, on the side! so that the LED doesn't bright directly through the hole. Take care with the eyes!!

The toy had a propeller (sort of like an outboard) and was powered by a wind up motor. Now it's got a sail and is powered by a wind ahoy breeze! :D

A webcam filming what it is filming... A portal to another dimension? A piece of art? The screen of the computer serves as an extra

Another shot of the Rokit water rocket. This time in slomo! Full time travel achieved right after the take off probably due to the rocket breaking the speed of light. Some friends disagree with this..

Yet another poor quality video of the homemade pneumatic cannon made out of a cheap air pump for using the own piston as it works like a one way valve. Thus, you don't need to leave a small clearance for air to leak and load the main chamber. The piston let's the air flow into it, but on the shooting phase it blocks it. It's the same that happens when you pull the handle of the airpump (air enters the cylinder) and then you push it (air is NOT released, but compressed). The target in this video is the back plate of a pringles can. At 3,5-4 atm as seen here it pierces it. At 6 it goes through. At 7,5 the rear cap explodes XD And no... I'm not in undies. It's a swimming pant (summer in Spain!!) XD So please focus on the ballistics and keep YOUR mating rituals for your friends and beloved ones. Another funny fact. The rear cap explossion propelled the main body against a furniture and the aluminum cannon BENT. So poor accuracy now, but back before the accident it was kinda good...like let's say hit an apple at 15 meters (yeah, I know but I didn't want to put my eye or face close to the gun, so it surely would have been better. To the naked eye, the BB looked like flying pretty straight) Thks4watching All likes reserved

Made out of a bicicle pump! The idea is to use the one way valve that every bicicle pump has on its piston, to improve the performance of the gun, instead of using loose pistons as usually. I know the difference may not be crucial but it's for the sake of well-design. The piston is too heavy but seems to prove the theory. At only 75psi it shoots a 0,2g 6mm plastic bb through a steel (yes, steel. This is Europe) coke can. Filled with water it pierces the can and leaves a mark on the other wall. Air leak detected, soon to be fixed. UPDATE 20150719 Air leak was fixed with teflon tape. Cannon was intended to be tested to 10bar / 145psi. At 8bar / 116psi the back bursted off the main body, propelling it against a wall, with the cannon hitting at a great speed. Result is a bent cannon. Speed doesn't seem to have decreased but precision has been seriously affected. Plans for now are to test the energy at 75psi (like this teaser shows), then cut the cannon to the unbent part (which is about half the lenght), glue the back permanently and test energy again at 75psi to see the relationship between cannon lenglt and muzzle energy. Afterwards, with the back end fully glued, repeat tests at 116psi / 8bar and hopefully get the same energy as full-lenght-cannon @ 75psi. If not, test pressure until total burst, or the desired energy achieved. Advise is greatly appreciated. Thanks for watching! A FewFriendsFace production Likeyright FFF2015 All likes reserved

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On 12th januar 2015 the new HM830 takes test flights to compare with its twin 8broken and repaired) brother. Now that I achieved some experience with the older one, flying should be easy right? Well, it was, but as always, holding the camera and controlling is not easy at all!! Average flight times passed 2 minutes, promised!! This is the best of the three videos, but unluckily the wind was kinda high and I couldn't make this guy return to me so I had to cut the engine...but "he" wasn't doing it bad, huh? =)

On 12th januar 2015 the new HM830 takes test flights to compare with its twin 8broken and repaired) brother. Now that I achieved some experience with the older one, flying should be easy right? Well, it was, but as always, holding the camera and controlling is not easy at all!! Average flight times passed 2 minutes, promised!! This time we see a really short flight. It dives, making me think it's gonna crash but then throttle up it comes back up, nose too high, airspeed goes down to zero and here we have a stall :S

On 12th januar 2015 the new HM830 takes test flights to compare with its twin 8broken and repaired) brother. Now that I achieved some experience with the older one, flying should be easy right? Well, it was, but as always, holding the camera and controlling is not easy at all!! Average flight times passed 2 minutes, promised!! Shortest video, now with battery a bit low, so I moved the paper forth to have a bit of extra lift with CG more on the back, and it flew kinda fine... It gets out of camera but nothing special. Afterwards, the common spin, so frequent in the HM830, but helped with a funny crosswind...

Volando el Rokit en el Juancarlos... Sólo 0,5L En otros lanzamientos con botellas de 2L tuvimos grandes problemas de estabilidad. El cuerpo estrecho de la botella de 0,5L parece funcionar mucho mejor. También se ha observado una mejor estabilidad de la botella de Fanta frente a la de Cocacola. Quiza debido a que el estrangulamiento evita que el agua trepe por las paredes, o quiza incluso por un efecto coanda (?)... Flying the Rokit on the Juan Carlos I park in Madrid. As previous flights with 2L bottles were highly unstable, we took here a narrower 0,5L Fanta bottle, wich performed much better. The performing has been observed to be better also against 0,5L Coke bottles, which could be due to the water not rising through the walls of the rocket because of the throat of the Fanta bottle, or maybe even (?) due to a coanda effect...

ESPAÑOL & ENGLISH Cada vez tengo menos tiempo para grabar y editar, de modo que os dejo la versión sin tocar del mejor vuelo que pude grabar de este avión. Si puedo subiré otros vuelos malos y buenos, aunque habitualmente vuela tan bien como veis aquí. Sólo hay que tener cuidado de soltar la hélice una fraccion de segundo antes que el fuselaje. Más detalles ABAJO. Me gusta? Me suscribo? Tú decides =) Segunda parte: https://www.youtube.com/watch?v=GxK8i-xwBLA Less and less time for filmiing, so here is this raw video. This is the best flight I could film. I'll upload a few more, with other wins and fails, but actually it uses to fly as well as you can see here, just gotta release the propeller right before the fuselage and everything goes OK. Construction details scrolling DOWN. Like? Subscribe? Up to you! =) Part two: https://www.youtube.com/watch?v=GxK8i-xwBLA La construcción es sencillísima, pero la precisión de la hélice es clave. El modelo de avión es casi lo de menos mientras la hélice funcione bien. Basta que el modelo planee un poco sin propulsión, y eso garantiza que con la hélice volará más lejos. También es clave que la hélice es de papel, no de cartón, para que tenga muy poca inercia y no haga girar el avión en sentido contrario. Para que sea resistente se moja entera en superglue. El fuselaje es un cilindro de papel (una sola vuelta basta). La goma va dentro, de modo que el cilindro no sufre deformaciones fuera de eje, y resulta muy resistente. El eje motor de la hélice es lo más difícil de hacer, pero es reutilizable si el avión se rompe, de modo que vale la pena hacerlo con cuidado. Mucha suerte. Cualquier otra duda dejádmela en un mensaje privado a mi canal porque NO PIENSO LEER NINGÚN COMENTARIO EN GOOGLE PLUS. Y si os gustó dadle a me gusta y pensad en suscribiros =) The propeller part is key; the model itself isn't hard to achieve. Just if the model can glide without the power of the propeller, it's fine; the propeller will do the final thrust. It's also key that the propeller is as light as possible, so that it doesn't cause the airplane to spin in the opposite direction. Mine is out of paper (instead of cardboard), rigidized by superglue to withstand the winding up. The fuselage is a simple one-turn paper cylinder. Since the rubber band is inside, the cylinder doesn't bend at all. The propeller group is reusable and splittable from the fuselage so it can be used on further models if current one breaks. And that's all folks! good luck to Aone and try to write your questions on private messages to my channel because I WON'T READ ANY COMMENT ON GOOGLE PLUS. Er...thumbs up? Subscribe? =)

Here is the teaser preview of the Frankenstein Boomerang. A DIY boomerang out of cardboard, capable of flying more than 15m far yet being small. Victor Poulin (whose channel you should visit if you LOVE boomerags...) called it "Mess" from the description of the early project... What will he think now? What do you think now? Is it a Monster? a Frankenstein? a Mess? Is it the Beauty or the Beast?? Comment, like and subscribe, and I'll post the whole video as soon as my video editor stops teasing me ¬¬ Os presento a Frankenstein, un boomerang casero de cartón ligero pero que supera los 15m de alcance en un tamaño compacto. Mi amigo Victor Poulin (cuyo canal recomiendo a todo el que adore los booms...) lo llamó "Mess" ("Lío") cuando le hablé del proyecto. ¿Qué opinará ahora? ¿Qué opinais vosotros? ¿Lo llamamos Frankenstein? Lío? Desastre? Monstruo? Comentadme abajo, dadle a me gusta (anima a subir más videos y hacer más booms...) y subscribíos, ¡que es gratis y hay crisis!