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Hello, Just wondering if anyone could please explain how does the Honda variable geared steering (VGS) differ in operation from the the epicyclic drive like device BMW (active front steering AFS, which is quite simple) has on the new 5 series..? AFAIK the VGS was only offered on the S2000...

Ok thank you, that answer my question

Hello, Is it possible to mate a screw and corresponding nut in an assembly such that when a rotary motor is applied to the screw it will follow its thread and moves into the nut? (the nut is fixed in space) I drew the thread by sweeping the profile along a helix

Hello, What would be a good way to hold/clamp a thin razor blade in place, preferably without thru holes. I am trying to design a blade holder for a concept machine, the blade dimensions are 20mm cutting edge length, 13mm wide, and .88mm thick. Thanks in anticipation, Alex

This is fantastic! this actually sounds almost doable, thank you Flareman! I'll be sure to check out the book as well

Hi Is it somehow possible to create pressure pulses in the exhaust gas of a NG burner? We are running Maxon Kinemax burners firing through standard ICE cylinder heads for durability testing...Would like to better simulate the bottom end. Thanks in advance -AB

Thank you Don, that's exactley what I was looking for.

I see, thanks. Do you know how this type of manifold is manufactured?

Here are some videoscope shots of the insides. Only one of the three manifolds I looked at had a strange wire mesh sandwiched between the two skins http://i26.photobucket.com/albums/c135/moshimasu/clamshell/sandwich2.jpg http://i26.photobucket.com/albums/c135/moshimasu/clamshell/sandwich1.jpg...

So what exactley allows these manifolds to produce a faster light off than, say, a cast manifold with a ceramic heatshield around it, also close coupled to a cat. thanks for the input so far people. I will post up some videoscope shots to show you some interesting internal structure.

Hi, Does anyone know anything about this type of exhaust manifold, like manufacturing methods and construction techniques used to make it or the benefits of a dual-walled manifold (pictures dont reveal but it has a second 'skin' within, and an apparantley consistent air gap between the two)...