smart51
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| posted on 7/8/10 at 01:19 PM |
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exo 3 wheeler chassis
Here are a couple of pictures of my new chassis. Still plenty to do but I thought I'd share the progress with you all.
 
chassis front
[img][/img]
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interestedparty
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| posted on 7/8/10 at 01:26 PM |
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There is certainly a lot of work gone into that.
Can you remind me what the overall aims of the project are, I expect there are certain targets you have to meet?
As some day it may happen that a victim must be found,
I've got a little list-- I've got a little list
Of society offenders who might well be underground,
And who never would be missed-- who never would be missed!
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smart51
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| posted on 7/8/10 at 01:32 PM |
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My aims are 80 MPG and fun. I reckon it do be both. 22 BHP in 230kg will give acceptable acceleration and plenty of grins. I bought a MCC Smart in
2001 and people would look at it as if an alien had just driven past. I'm aiming for the same kind of reaction.
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PSpirine
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| posted on 7/8/10 at 01:38 PM |
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That looks superb, sir!
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Miks15
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| posted on 7/8/10 at 06:11 PM |
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not sure you have enough triangulation there?
Looks pretty decent to me!
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kipper
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| posted on 7/8/10 at 07:17 PM |
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Hi smart51.
I like the work you are doing there .Are you still using the Piaggio engine? if so you might be interested in the 500cc unit I will be taking out of
my three wheeler.
It may give you more fun than the 250.
I am replacing it with a Kawasaki zx9.
The piaggio engine has only done 112 miles so is brand new.I have all the wiring and instuments etc.
Regards Denis.
Where did that go?
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speedyxjs
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| posted on 7/8/10 at 08:36 PM |
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Looks great! Is it just a single seater?
How long can i resist the temptation to drop a V8 in?
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smart51
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| posted on 7/8/10 at 09:31 PM |
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One seat for simplicity. The front suspension has to handle all the roll and due to the super light weight, the driver is about 1/4 of the running
mass being sat on one side would make the car lean all the time. A central driving position gives balance.
Thanks for the offer Kipper. I did toy with the idea of the Master engine but the idea is high MPG. The 500 offers 51 MPG and the 250 gives 82 MPG
(official figures). Your 42 BHP trumps my 22 though. I estimate around 10 seconds 0-60 depending on the scooter's gearing. Almost double the
horsepower would be fun.
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smart51
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| posted on 8/8/10 at 08:07 PM |
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With a little more added to the front, it's starting to take shape.
[img][/img]
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Triton
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| posted on 9/8/10 at 12:52 PM |
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CooooooooooooooooooooooooooL at last someone with the gumption to "dare to be different" my hat is off to you matey that is wicked and
totally agree on the small engine as I reckon big bhp is just for those who can't use it anyway.
Love to know how you get on getting it on the road as I really do think that's the muttz doodahs
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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smart51
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| posted on 19/8/10 at 08:56 PM |
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Here's a pic of the front lights. The trouble with the phone's screen is that the pictures look sharp until you upload them onto a PC.
 
front lights
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Benzine
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| posted on 19/8/10 at 09:04 PM |
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Awesome! missed this thread first time around. Looking forward to seeing it progress  . I'm planning on making a 3 wheeled single seater when
I have the time (diesel)
The mental gymnastics a landlord will employ to justify immoral actions is clinically fascinating. Just because something is legal doesn't make
it moral.
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ceebmoj
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| posted on 20/8/10 at 08:22 AM |
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I did not notice the curve to the side rail first time round looks very nice.
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fuoriserie1
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| posted on 11/9/10 at 06:05 PM |
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quote:
Originally posted by smart51
Here are a couple of pictures of my new chassis. Still plenty to do but I thought I'd share the progress with you all.
chassis front
 
chassis side
Looking real good, I like your new chassis design....
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smart51
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| posted on 13/9/10 at 09:02 PM |
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I've made a little more progress and the sides are finished, save for the last 2 welds. I've run out of gas.
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MikeRJ
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| posted on 30/10/10 at 04:26 PM |
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I know it's a light car, but the welds at the pivot of upper wishbones are going to see a lot of stress; have you done any calculations to make
sure this is going to be ok?
Chassis looks like a labour of love though, you must be getting fed up of fishmouthing small tubes by now!
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smart51
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| posted on 30/10/10 at 04:54 PM |
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The sprung weight on each side is about 55kg laden or 120 kg laden with the rear wheel in the air  . There is about 400 mm2 of weld on each top
wishbone mount. I'm happy enough that it is up to the job.
I am glad the fishmouth cutting is done though. There are a lot of little tubes on that thing.
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kipper
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| posted on 30/10/10 at 09:52 PM |
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three wheeler
Hi there Smart51.
It would seem our builds are running in parrallel, really nice work you are turning out.
What are you using to cover the framework?
I am just going to cover the main chassis with alloy and do some grp moulding for the front nose section and rear after the roll bar.
Regards Denis.
Where did that go?
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smart51
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| posted on 31/10/10 at 07:29 AM |
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It's going to be covered in some sort of fabric just to keep fingers and the worst of the weather out. I'm not sure what yet. Perhaps
spandex so that it can be stretched over the frame with minimal sewing.
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iank
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| posted on 31/10/10 at 09:31 AM |
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I might be wrong but I thought MikeRJ was talking about the wishbones themselves.
The ones I've seen of that design have a tube from the shock mount to the hub mount to spaceframe the whole thing.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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smart51
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| posted on 31/10/10 at 05:51 PM |
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Right, I get it now. I was also going to put a tube across the length of the wishbones so I calculated the bend in the arms under shock load. It was
less than 0.1mm, if memory serves, in a several g drop onto the front wheels. My only concern is the short length of tube that the bushes push into.
I don't mind if the wishbones fail in a crash (better for your legs than pulling the frame out of shape). I'll be keeping an eye on them
to make sure they don't pull out of shape in use.
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Triton
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| posted on 15/1/11 at 06:03 PM |
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Anymore progress on this wee beast?
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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smart51
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| posted on 15/1/11 at 06:07 PM |
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lots of little bits. Nothing much that will show up on a photo. I'm in the process of making some cycle wings. I've got hold of a tyre
2 sizes bigger than the ones I plan to use and covered it in parcel tape, than laid fibre glass over the top to make the carcasses of them. Once
I've trimmed, filled and painted, I'll post a pic.
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Triton
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| posted on 4/2/11 at 09:21 AM |
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How's it going with the exo trike?
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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smart51
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| posted on 5/2/11 at 02:21 PM |
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OK, black is officially the hardest colour to photograph and the reflector means I can't use the flash (or all you see is red glow!)
 
cycle wing with reflector
Compound curves are really hard to apply filler to and keep them "flat". A lot of sanding was needed. Thankfully I discovered spray filler
which is a life saver.
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