How does that manifest itself ?What's not well is the handling. The battery is creating a pendulum effect. I hoped to not get this as the trike leans so was wishing for it to behave like a two wheeler.
I assume this also manifest's itself as some steering input , so it weaves a little ?It literally pendulums back and forth several times before you can stop it. Leaning down is fine but when you come back up you overshoot and then do so again for several goes.
I would have though proportion wise it is a small part of the overall moving mass ?It doesn't do it every time but it's worse at speed. Slower corners seem to be ok. Moving the battery will, I hope correct that tendency.
This line of though would imply that there is a fixed weight limit for the stability of the trike ?Under the boom will get that mass close to the tilt axis. It's a fair old mass that's not part of me.
Could the battery not go under the boom ?Battery now moved and replaced with a Hailong cased version and I moved the controller to an under seat bag which is bolted to the seat and also holds a few tools. Space was tight as I never envisaged using that space. With the benefit of hindsight a bit more space would have been useful. This has improved the pendulum effect enormously. It's gone from dangerous to a bit wobbly. I hope I can fine tune the rest out by improving my techinque.
It is noticable trike riders tend to swing their body from side to side when pedaling hard , maybe that is the effect causing the unwanted slaloming ?I've noticed that hard pedalling wants to rock the trike which in turn wants to slalom it.
TrueAgain I suspect much is down to me needing to improve rather than a technical solution.
Noticeable as a noise on the 1st Python trike as you were sat inside the rear wheels and it had a 30" track , not sure I could feel it ?One other thing I've noticed is the tyre scrub. Without Ackerman this is both heard and felt and is the reason for choosiing the fairly skinny front Marathons which have as low a rolling resistance as there is whilst having good puncture protection. I suspect some extra air in them will help but I always knew this was a design issue with little chance of resolving.
I suspect that leaning is a to ' stop it tipping over ' reaction ?I'm still having the tendency to over lean into a corner especially to tighten the line when in fact pulling on the bars is the better option.
I expect a practice/confidence thing , the rider tilting/leaning looks great on paper however in reality it is most unnerving when it happens unexpectedly.Again more learning needed but I am tightening the turning circle with practise.
Battery under boom ? this would allow no return chain to be moved out of it's path easier than dealing with drive side ?I also need a wider BB as the chain now clears the battery by 2mm on the big front ring. The smaller one is currently unusable until that change is made.
Don't put ideas into his head ....Enough of issues though as the smile is wide on watching other's faces as you slalom a bit just because you can. My current view is that this is capable of being in regular use rather than just a Sunday machine and I see no reason why anyone who wants to shouldn't build something similar. If anyone wants better pictures of any area or measurements I will happily oblige.
Sometimes these things are not as strange as we think ?I'm sure that this trike is a lot less forgiving of sloppy techniques than a Warrior or Streetfox type trike and the whole action and foibles thing are going to take some adaption from me. I'm equally sure that mastering those improvements will be well worth it as the smiles per mile are way in excess of anything-else I've built (so far). Anyone with ideas in their head should get them out of there and into steel.
I am quite impressed with the way the twin batteries are mounted on my tadpole (not my doing, I assure you).I tried the battery under the boom with the triangle battery and just wasn't happy with it hanging there. It really needed to be more firmly fixed than a triangle type would allow. The Hailong is much better fixed being bolted down but I wouldn't want to hang the weight of the battery off it's mount. To undersling it I'd want to make a cradle similar to the one on my PRST so it sat on it's mount rather than hung off it. It's also much more vulnerable under the boom if I run into anything and it's a big ticket item to use as a crumple zone. The big advantage of it on top is the ease of removing it for charging. Above or below it would take the same central space so would still require a wider BB. I want to keep it central to avoid leaning the other way to counterbalance it but mainly it would upset my sense of aesthetics to have it offset.
I'm sure that this trike is a lot less forgiving of sloppy techniques than a Warrior or Streetfox type trike and the whole action and foibles thing are going to take some adaption from me. I'm equally sure that mastering those improvements will be well worth it as the smiles per mile are way in excess of anything-else I've built (so far). Anyone with ideas in their head should get them out of there and into steel.