pavedwave longboarding

stridey · Joined: 11 Mar 2009 Posts: 48

Wow. Thats cutting edge stuff....

er.....literally!

Very Happy

pavedwave · Joined: 22 Oct 2007 Posts: 1120 Location: seattle wa usa

dustm · Joined: 18 Oct 2007 Posts: 37 Location: Raleigh, NC

Thanks you guys! Its not torture most of the time... I get a kick out of seeing it move on the screen.

Re: springs- Thats a good question, and good idea. I don't know if making the length of the linkage springy would help because that would allow motion that I'm trying to constrain. Instead, linking the springs from the deck to the blade assembly may reduce the force that the little ball links have to transfer to tilt the blades and of course improve rebound/return to center. I'm not sure exactry how the blade mechanism will affect the truck feel but it makes sense that some more rebound could be good. It would definitely be a good idea to at least include somewhere for springs to link before its built so I could experiment freely.

I don't know if all this is correct, its just how I think about it... Resolution of forces is very important and this is just an observational guess an what is going on. I could very well be missing something, or totally wrong altogether, so: Centrifugal force pushing sideways on the contact patch of your wheels in a turn adds leaning / turning force to the hangar if the axle has positive rake, like a bennett. Think how flipping the hangar on a Randal makes it more stable (more resistant to changing direction)... The rake goes from + to -. Wheels on a Bennett move towards the inside of the deck in a turn, however, the blades edge will move the opposite direction as the blade tilts in the same turn. That side force will also feed back up to the deck and fight the turn by torquing the blade axis and loading the linkages, the inside with buckling force and the outside with tension. It may turn out that to get the same bennett feel a more extreme + rake is needed. Who knows!

We don't get too much ice around here, but I don't like skating too much in the cold so I laze out for a few weeks in the winter. More time to build and draw! Ironically my motivation is to skate in the summer when we have all those nice 90F, 90% days. I have an aquaintance at a local rink who thought there would be enough empty ice time to help me out. I suppose I could make some friends at a regular roller rink but then I wouldn't have an excuse to make neat tilty ice blades...

kayakr · Joined: 19 Mar 2008 Posts: 35

Ice boats don't need to tip the blades do they? Seems a lot simpler just to have vertical blades.