Popshot
Thanks , that's a big difference to the inner wheel !
So got all excited though I had a plan ?
post #130 I looked at using 2 x BMX frames for a
quick and dirty quad however they were 38" w/b that would have made the quad to big to fit in the car and @ 25' raise the radius of the turning circle from 64" to 81" possible to much.
However Wednesday and wrestled from the clutches of the scrap metal men a 20" front suspension MTB almost identical to the one Dale Rider gave me , would they be better ?
Certainly @ 34" w/b I stood more of a chance getting it into the car and the turning radius @ 25' went from 64" to 73" maybe livable ?
So here they are @ 28" track and 34" w/b not so square now !
Now as luck would have it the one piece BB when removed yielded a 50mm[ish] hole in both frames that I happen to have some pipe that was a great fit.
So blue lines represent new tubing 3 lines show 50mm through BB holes , could pick up front seat mount and main spar out towards BB and pedals.
Blue line near axle another tube connecting rear end together upper seat mount could probably go down to where they are welded to frame chain stays, no triangulation shown probably needs some.
Front very messy I think my knees pass the head tubes so no simple straight across coupler , blue line shows it going forward before crossing front of quad.
3 x blue lines again 50mm[ish] tube connecting BB holes and short main spar off to pedals and a joining piece main spar to front extension.
Green shows connection between forks for steering [ Ackerman place ] and possible position of a steering control , this would make all the cables very long !!!
Easy you say , make it tank steering , very short cables , however it is hard enough to get in it as shown ?
You cannot back into it like a tadpole and seat post in frame makes it already hard to climb over without having some control levers in way.
Also not shown is any chain routing/jackshaft etc etc.
It seems to have all the bad points of a mono boom combined with all the bad points of a peripheral frame and apart from not needing kingpins and having perfect centre point steering it is a shed load of work and will be very heavy.
So disappointed I go to lay my weary head.......
maybe tomorrow will bring some bright ideas ?
Paul