PAddy Wrote:
-------------------------------------------------------
> The knee bar is debatable, but went in anyways. I
> sat in my seat today, and I have about 3.25"
> between my upper thigh and the bottom of the bar,
> but if I end up adjusting the seat to get a better
> view, I may end up moving the bar up if feasible.
> I like the idea of having a crossmember there, but
> the space is somewhat lacking with all the heater
> stuff sitting in there...
What the hell you have National health Insurance, don't worry.
>
> In terms of the gusseting, I would really like to
> see some sort of explanation for why plate gussets
> are more failure prone than a taco in a region
> like the main hoop's X brace. Not a 'everyone
> else does it' explanation, a real reason I can
> draw on paper and think about.
Fer fucks sake Paddy cut a piece of 1/8 plate place it ONCENTERLINE on your bicep and forarm, then have a freiend grab you hand and apply closing force.
The are not merely neutral things, they tranfer loads to a POINT, the end and can tend to collapse the tube there.
These are
> accessory braces in any case (originally it was
> only supposed to be the X in the diagonals), so I
> am not particularly concerned, since the whole
> extra X more than compensates for a small stress
> raiser (if it exists) in the rear stays. Keep in
> mind the number of sanctioning bodies which still
> require 1/8" plate gussets in all cage
> junctions...not that it's ideal, but I think it's
> still plenty good.
No it is demostrably and obviously a BAD THING waiting to cause damege The sactioin bodies that REQUIRE the things are dinosuar brained meat heads.
That's no reason to not chop the fuckin things out and weld in something along the sides.
LOOK AT STRESSED constructions like any motorcycle steering head in the last FORTY FUCKING YEARS. They did the "On center thing" in the mid 50s. Steering heads BROKE OFF in quick time.
Frames made with thinner but on both sides, what care guys call TACO style are vastlty LIGHTER and last for YEARS doing FAR CRAZIER shit.
Learn for fucks sake.
>
> In terms of the reinforcements of the door bars, I
> don't think either type of gusset (be it triangle
> or taco) does much good in that regard. A taco
> will just fold upon a side crush, and I don't
> think the triangles will spread the load well
> since they're in the middle of the tube. Really,
> to distribute the stress I'm considering just
> welding a big plate across the whole outside of
> the connection, which would actually give a
> reasonable spreader plate.
>
> We're all going to diiiiiiieeeeee.....
>
> Patrick McVeigh
> Toronto, On
> Ford Sierra - Gp 5
John Vanlandingham
Sleezattle, WA, USA
Vive le Prole-le-ralliat
www.rallyrace.net/jvab
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