Tuesday, December 22, 2009
Monday, December 21, 2009
Thursday, December 3, 2009
Thursday, November 26, 2009
finished yet, but when the results come out, it will be published!
touch and go
Wednesday, November 25, 2009
Luc was made two foamies from a light Depron foam, he was enjoy like always to be creative. The electric motor plane is powered with 2s lipoly 700mAh at the weight of 150g, at wing span 800mm. For the sailplane he was take out the RC from Koaksial helicopter on 35Mhz. Sailplane is even lighter with good 110g.
He wish to proceed the Aerotow with booth creations. Last Saturday it was so far. I was invited to fly the towing plane, he was on glider controls. Well we was both a bit nervous but it works!
RC aerotow is one of the dificult steps on controling the models, booth pilots must to be simultan, precise and quick in case something go wrong!
Here it is the documentation ;-)
Thursday, November 19, 2009
Current world champion Bora Gulari come up with interesting and professional done video study of cavitation/ventilation on the foils.
Here it is http://www.youtube.com/watch?v=qDpnXsAB1oc
The discussion on the SailingAnarchy forums started,
http://forums.sailinganarchy.com/index.php?showtopic=98777 some good ideas and problems was discussed and here we have one answer to the foil
ventilation problem coming from the flaps gap!
Moth hydrofoil elastic flap
Elastic flap end or extension will close the gap we have now on some existing foils where the flap end before the tip of the foil! This gap is in any case the point where the vortex of water flow is presented. From this "mistake" on the flow we get then the ventilation and the cavity on the foils. Result NO foiling anymore, wet eyes and crash....
This small triangular shape with the flap section on one side and pointed as much the technology and materials give up, will be made out of day-cast elastomere in shore hardness A40-A55max, or even better made from two or three hardness. As I pointed the technology is open and here in Lab we are ready for this service on demand.
For any questions or information's
write a mail on primoz/at/seajump.com
Tuesday, November 17, 2009
In all we have three systems the Powder, Foam and the CO2. On the first page they are all three together and then one by one, with all technical characteristics.
Again the power of Alibre systems was the right choice on the board. The best is to use the same 3D drawings of the parts for the renders too. All in one package and here are the results! The Flyers are done!
Sunday, November 15, 2009
the design process of the chosen "edgy" take a place. From the initial shape some parameters was changed, like the pistol can not to be placed outside in a gap like here,
Here it is the CO2 set up with 9 bottles of gas
So step by step to the final design, at some point the decision was made, we need compromise true design2 and design3! That's mean less edgy and more round shape will be the right one!
Again parallel the hard work was done on inside parts and renders to bring this pieces to the life. Here is one of the in between steps, the inside firebox pieces into the hangar! /no real photo just illusion and computer graphic//
The Box shape after close of the month work come to the final shape. The top is opening, the Z side cut remain, the corner holders was adapt to the best ergonomic shape and again we are in Hangar for presentation.
renders into the Hangar which was used for the flayers as well! More regarding Flyers later on!
From the beginning I was wondering how the corner holders will work in 1:1 measurement. Drawing on the screen is one side of the world and reality is sometimes different. To check the situation I was simply mill out of RDM plate the corner on the small cnc router in the studio lab. This works well true and we have for the first time the corner part into the real dimension!
At the last stage the final CAD drawings was done in AlibreCAD and the solids was send to CAM workshop to mill out of the Ciba Block materiel the pre-mold shape of the whole box! Two shots more from the screen, the wire-frame image of the box and the solid one!
More of this and closer look on the 1:1 box next time!
Friday, November 13, 2009
Thursday, November 12, 2009
Wednesday, November 11, 2009
Seajump - what is it?
It is all and nothing, but above all it is a deeply rooted stubbornness. Once it was a vision, and it remains a vision. It is our and your soul that drives us forward. Seajump is always one step ahead of time and never follows the herd instinct. We have an excitingly strong and well equipped laboratory for performing and studying brain flips, which are subsequently intravenously injected into the evolving products. The transfer of molecular vibrations is achieved using a development reactor, from which the spatial form is then created. We are also able to clone our products, but at the same time we aim to upgrade and further develop them. Obtained reflected frequencies at forums and spots are vital for our further research and development. After every successful project completion, we move to a secret home-spot and enjoy! Our laboratory staff consists also of the special group of psychoanalysts, who are dealing with too powerful brain waves of our selected specialists, whose brain vibrations must be adjusted to a normal level as prescribed by the national health service. Our research results are being used by several market leading sport companies in the world, located in various climates from cold Switzerland, hot Hawaii, to wet Britain. So much about the laboratory and the reactor.
Regards, Dr. James