Drypod 2

Joined
Oct 19, 2012
Messages
1,019
Location
Wakefield, UK
The suspension works well. It's limited in travel to about 1.4" as it was designed to be to avoid excessive rolling in corners. I expect it'll soak up the worst of the bumps which it'll need to do with those ultra skinny tyres. The rod vs tube thing was at the front of my mind. I've always gone with tubes in the past and male rod ends for that very reason. I didn't think for one moment mild or stainless rod would cope so I've used M8 8.8 high tensile rod to help with it's resistance to bend and a carbon sleeve will also add further resistance. If it fails it's not a massive job to remake them, involving nothing but the rods themselves. I've noticed others going this way but I've also noted many people not being overly forthcoming about failings. If these fail I'll certainly report that back. The A frames are M10 8.8 threaded rod and have withstood me testing the suspension. I know that's not remotely the same as being in use but it's as much testing as I can achieve right now.
 
Joined
Oct 19, 2012
Messages
1,019
Location
Wakefield, UK
Chain management in. Simple enough on this trike - just one pair of pulleys.



I've largely finished the main mechanicals now. Sure there's the tidying up and small tasks here and there but the main engineering is done. With the seat on this is now tipping the scales at 42.2kg though that does include 2.5kg of Nuvinci hub. With a more conventional set of rear gears you could loose 1.5kg off that. Even discounting the hub I'll be straining to come in sub 50kg now before electrification :(. I expect the body and canopy to weigh a minimum of 10kg not to mention all the chain, cables, levers etc. The only way to have any chance of the 50kg target from here is to switch the canopy from the design to a blown dome but then it won't open and it'll look like the Jetsons.
If there were to be a Drypod3 I'd revert to using a steel chassis from the off and use unstressed Thermhex for the jobs the wood is currently doing. I think I could shave off a minimum of 5kg that way and perhaps as much as 8kg. You live and learn.

 
Joined
Jan 16, 2011
Messages
302
Location
Vilvoorde / Flanders / Belgium
Maybe recycling an old glider for the cockpit/canopy?

I myself go for a more angular style, based on the glorious 60-70 Bertone desings, like the Alfa Romeo Carabo and Lancia Stratos Zero.
 
Joined
Oct 19, 2012
Messages
1,019
Location
Wakefield, UK
Aircraft parts are almost always a ridiculous price and an aircraft canopy would need to be strong (heavy) enough to withstand a bird strike. I could get a custom blown dome in a rectangular form for easy mounting for around £100 or just over but I'm almost certain I don't want to go that way. I think I'll just have to accept that I'm going to be over the target weight and live with it.
 
Joined
Feb 20, 2013
Messages
781
Location
Axedale, Victoria, Australia
Website
axerail.coffeecup.com
Popshot: I know it's a bit late now but I recently saw a couple of videos of an electric Changli (see Jalopnick YouTube channel) car that can be ordered via AliBaba. It has a front beam, simple stub axle kingpins at the outer ends, and trailing arms for front/rear locating. Coil-over suspension is used, along with what I would think is a Panhard rod for sideways location.

It occurred to me that it might suit your Drypod design, being easier to construct. If I had been able to see it a couple of years ago, I would have played around with it instead of something else I idled my time with. Hmm, I may even resurrect it. Oh dear, the list just got bigger.
 
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