#1
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I have plans
Thanks to the people who helped with contact details for James Robinson
and his wooden bent. The msn address works, I paid my $25 last night by Paypal and this morning I have the plans in my hot little inbox. I feel a project coming on! -- Tony "I did make a mistake once - I thought I'd made a mistake but I hadn't" Anon |
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#2
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I have plans
Tony Raven wrote: Thanks to the people who helped with contact details for James Robinson and his wooden bent. The msn address works, I paid my $25 last night by Paypal and this morning I have the plans in my hot little inbox. I feel a project coming on! Unfortunately so do I. I spent some time last night researching Ackerman steering for a potential bent trike.. ...d |
#3
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I have plans
David Martin wrote:
Unfortunately so do I. I spent some time last night researching Ackerman steering for a potential bent trike.. clickety google Interesting, but is it worth it? Won't it 'ackerise' only at one particular radius of turn? -- Wally www.artbywally.com www.wally.myby.co.uk |
#4
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I have plans
In message , Wally
writes David Martin wrote: Unfortunately so do I. I spent some time last night researching Ackerman steering for a potential bent trike.. clickety google Interesting, but is it worth it? Won't it 'ackerise' only at one particular radius of turn? No. As the radius of the turn gets smaller, and hence the angle of turn of the wheels larger the difference in angle between the inner and outer wheels increases - it's not constant difference -- Chris French |
#5
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I have plans
Wally wrote:
clickety google Interesting, but is it worth it? Won't it 'ackerise' only at one particular radius of turn? It should 'Ackerise' at all radii (IIRC) since it is to do with ratios of turning between the wheels. More details can be found at Peter Eland's excellent site: http://www.eland.org.uk/steering.html Jon |
#6
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I have plans
Tony
Have you been here ? http://spin.xntrick.co.uk/ this guy has built a 2 * 4 from those plans. paul "Jon Senior" jon_AT_restlesslemon_DOT_co_DOT_uk wrote in message ... Wally wrote: clickety google Interesting, but is it worth it? Won't it 'ackerise' only at one particular radius of turn? It should 'Ackerise' at all radii (IIRC) since it is to do with ratios of turning between the wheels. More details can be found at Peter Eland's excellent site: http://www.eland.org.uk/steering.html Jon |
#7
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I have plans
paul needham wrote:
Tony Have you been here ? http://spin.xntrick.co.uk/ this guy has built a 2 * 4 from those plans. It was Wobbly John's wooden bent at Mildenhall that got me started! The link to the link he has on his site though is a dead end hence the questions here. -- Tony "I did make a mistake once - I thought I'd made a mistake but I hadn't" Anon |
#8
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I have plans
On Fri, 23 Sep 2005 01:40:32 +0100, Jon Senior wrote:
Wally wrote: clickety google Interesting, but is it worth it? Won't it 'ackerise' only at one particular radius of turn? It should 'Ackerise' at all radii (IIRC) since it is to do with ratios of turning between the wheels. More details can be found at Peter Eland's excellent site: http://www.eland.org.uk/steering.html Up to a point Lord Acker. Ackerman (actually it was Lankenspurger (sp?) who came up with the theory) was thinking of solid-tyred wheels. With pneumatic tyres the turning forces are generated because the tyre treads are at an angle to the wheel, known as "slip-angle". This applies to the back as well, so the nice neat diagram has to be greatly modified. In practice most implementations (eg every production car),use less compensation. How much less depends on |
#9
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I have plans
Tony
Did you get to ride it ? having got over halfway on the wood bits I think Wobbly John has under sold his wood working skills mine may have to be hidden under black wood stain to leave the garage ! Without the rear forks [ the pair weigh 5 pounds before the rear slope is cut into them ] the frame weighs 11 pounds it is almost impossible to even turn it on my workmate on your own [ which is much to small to build this on and can barely grip it ] and no way can I hold it in on my drill press to drill a hole. I have had to add a piece under the steering hole to make the 4.5 inches I needed to reach the threaded portion of the front forks , maybe I chose the wrong forks ? they came from a £5 kids bike with 20" wheels bought from the local dump. Just got a better bike [ there goes another £5 ! ] with 20" alloy wheels which weighs 250 grams less than the steel one I had , evey little helps ! Paul "Tony Raven" wrote in message ... paul needham wrote: Tony Have you been here ? http://spin.xntrick.co.uk/ this guy has built a 2 * 4 from those plans. It was Wobbly John's wooden bent at Mildenhall that got me started! The link to the link he has on his site though is a dead end hence the questions here. -- Tony "I did make a mistake once - I thought I'd made a mistake but I hadn't" Anon |
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