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gbbwolf
09-17-2008, 07:28 AM
Ok looking into the plans seems simple enough to mod a few things to get steering done without a weird cut fishmouth.

But my question is this my wife looked at the plans with me and she doesn't like the steering out to each side.

Has anyone tried to drop a headtube through the frame with a steering arm on the front side and 1 on the backside and connect each side to one.

And then run handlebars up from that in the main boom tube.

Wish I had knowledge of cad then I could show ya what I am thinking of trying.

Nelson

trikeman
09-17-2008, 07:38 AM
You don't need knowledge of cad to draw a sketch in MS Paint, or use a pencil and paper and take snapshot of it (that is the easiest if you have a camera).

ggriffin924
09-17-2008, 10:20 AM
I would like to see what you are thinking about also maybe take a picture and mark it up with a sharpie, the outside steering is a bit odd looking. I've yet to ride a Tadpole design, but I don't see a lot of variance on the steering for them,, all look about the same from what I have seen. Maybe a car steering wheel could work? I have a picture from somewhere that showed that... if I can find it.

-Griffin-

AtomicZombie
09-17-2008, 11:43 AM
http://onohiroki.cycling.jp/image/DSCN1499gtx_steering_detail.jpg

http://www.ihpva.org/people/tstrike/steer1.gif

http://www.velomobile.de/3R22.gif

http://www.chinawheelie.com/the-trike/images/img_6784.jpg

Brad

TheKid
09-17-2008, 01:29 PM
I originally had the type of steering you're referring to on the tadpole, but I don't have the pics anymore. It wasn't the same as the DW USS mod, but it was similar, and the DW mod is easier.
Build the Fox according to the plans, but leave out the handlebars. Instead of cutting the holes for the head tube at an angle, cut them vertically straight. The steering tube will be the same as the DW. The tab points to the rear and left. On the left steering knuckle, extend the arm back and add a tab pointing to the inside. Then make a tie rod that connects the tabs. You now have two tie rods, one between the wheels, and one from the steering to the left wheel. You'll almost positively need tilt steering. After several attempts, I abandoned this idea, because it was too hard to get on and off the trike, even with tilt steering. I opted for USS instead, which puts the bars on the sides, about even with the middle of my pants pockets, and about the same height as my gut.

gbbwolf
09-17-2008, 02:06 PM
I originally had the type of steering you're referring to on the tadpole, but I don't have the pics anymore. It wasn't the same as the DW USS mod, but it was similar, and the DW mod is easier.
Build the Fox according to the plans, but leave out the handlebars. Instead of cutting the holes for the head tube at an angle, cut them vertically straight. The steering tube will be the same as the DW. The tab points to the rear and left. On the left steering knuckle, extend the arm back and add a tab pointing to the inside. Then make a tie rod that connects the tabs. You now have two tie rods, one between the wheels, and one from the steering to the left wheel. You'll almost positively need tilt steering. After several attempts, I abandoned this idea, because it was too hard to get on and off the trike, even with tilt steering. I opted for USS instead, which puts the bars on the sides, about even with the middle of my pants pockets, and about the same height as my gut.
I think kid has the idea I am thinking of I can't draw worth a darn, or I would show ya.
I will build it then take a picture LOL.
Maybe this evening after I get mikes wolf reassembled I will try and do some paint drawings.

Thanks for the pictures brad, Not quite what I had in mind but more idea's to ponder.

Wife is 110 pounds, don't think she will have any trouble getting up off the bike shes very agile.

Nelson

TheKid
09-17-2008, 05:50 PM
Actually, I'm mistaken. The head tube for the steering would be at the same caster angle of the kingpins. I think I can make a decent "doodle" and take a pic.

TheKid
09-17-2008, 08:41 PM
I made some rough drawings, but you should be able to decipher them. I prefer to use one single tie rod connecting both wheels, as Brad has in the plans, then adding a second tie rod for OSS or USS. I find it's easier to align the wheels, then align the handlebars separately. It allows you to mess with the bar adjustment without altering toe-in or Ackerman. The alternate method is to have a tie rod from each wheel to the center steering arm. It's just a matter of preference.

http://i192.photobucket.com/albums/z66/edpol_photos/OSS%20for%20Fox/000_0506Small.jpg

http://i192.photobucket.com/albums/z66/edpol_photos/OSS%20for%20Fox/000_0505Small.jpg

http://i192.photobucket.com/albums/z66/edpol_photos/OSS%20for%20Fox/000_0504Small.jpg

http://i192.photobucket.com/albums/z66/edpol_photos/OSS%20for%20Fox/000_0503Small.jpg

AtomicZombie
09-17-2008, 10:02 PM
Yest that would work perfectly. In an earlier drawing, that was the way I was going to do the steering, but kept it as simple as possible.

Just watch that chainline and heels.

Brad

TheKid
09-17-2008, 10:26 PM
That's the system I originally had on the tadpole in the old forum. I inadvetently deleted the pics I had on photobucket, and I can't find the originals buried somewhere in one of my computers. I found it difficult to mount and dismount, especially when my condition worsened, so I went to USS instead. It's so much easier. The direct steering method in the plans makes the build easier than both USS and OSS, and it's more responsive. I went with USS because building a fairing is easier for me with that method.

gbbwolf
09-17-2008, 11:05 PM
Almost exactly as I had pictured it in my mind.

Thanks a bunch.

And I figured 15 degree angle like headtubes.

Still in thought stage may have to tack some things up and try a few idea's through trial and error.

Nelson

jeromio
09-24-2008, 05:13 PM
BTW, instead of creating the compound ovular ends on the cross-bar, I am only creating the "camber" angles, which should be easy to do. Then I plan on connecting the cross-bar to the frame at the 15* caster angle by cutting a notch out of the cross bar. I think this will have the added benefit of creating a slightly stronger joint at this junction.

locolarry
09-24-2008, 09:11 PM
I built my StreetFox steering exactly per plans....it steers perfectly. Pictures coming when paint is dry!:)
LL