nasty-bob
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| posted on 27/8/07 at 07:51 PM |
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Build Diary- Mid-engined Project
I've started a bit of a build diary for my project.
If anyones interested, please take a look NBR Beast Mk2
The link should take you straight there, but if not, hit view in the middle of the page.
Cheers
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Geoff011
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| posted on 27/8/07 at 10:17 PM |
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Very nice Bob!
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Doug68
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| posted on 28/8/07 at 03:39 AM |
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Bob,
Looking excellent!
Ready access to CNC laser and water cutters would be a beautiful thing to have!
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Ivan
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| posted on 28/8/07 at 07:45 AM |
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Nice one - I particularly like the laser cut front end - it would make building a 7 chassis so much easier - anyone like to redesign the book chassis
to suit 
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nasty-bob
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| posted on 25/10/07 at 09:04 PM |
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Bit of an Update
I've got my adapter plate for mounting Mazda 13b rotary to audi gearbox this week so I chucked the engine in to see if everthing fits right.
Need to get the brackets welded on now for the front of the engine and to mount the adapter plate to the chassis.
Steering rack mount also came so I chucked that in as well.
Column mounts and brake reservoir mount also now on.
Before anyone notices the MDF bulkheads, these are just dummies to be replaced by ally honeycomb when everything else in done.
 
Rescued attachment Front End.JPG
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nasty-bob
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| posted on 25/10/07 at 09:05 PM |
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pic attached
 
Rescued attachment Engine from Rear.JPG
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nasty-bob
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| posted on 25/10/07 at 09:06 PM |
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pic attached
 
Rescued attachment Chassis From Front.JPG
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nasty-bob
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| posted on 25/10/07 at 09:07 PM |
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pic attached
 
Rescued attachment Rear End.JPG
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Doug68
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| posted on 26/10/07 at 03:02 AM |
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Nasty-Bob,
Love your work!
Out of curiosity there's one question I have to ask though at the X brace in the frame side, to me its just begging to have another tube across
the top (see picture below).
Obviously you must have thought about this and decided to go without it so what was the reasoning behind that decision?
Oh and take down the noose, the project will never get on top of you that much!
[Edited on 26/10/07 by Doug68]
 
Rescued attachment Chassis.jpg
Doug. 1TG
Sports Car Builders WA
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nasty-bob
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| posted on 26/10/07 at 05:36 AM |
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I didn't notice the noose till I saw the pics- I think I'll keep it just in case
Yeah I have thought about those braces and still might put them on. They will add a fair amount of extra rigidity but make the car a bitch to get in
and out of, and also interfere with ergomonics. The chassis is plenty stiff enough without them though.
My other thought, as a compromise, was this (below) and then gusset in between.
 
Rescued attachment Chassis.jpg
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Doug68
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| posted on 26/10/07 at 06:18 AM |
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I quite like the idea of the car being a bit hard to get in and out of I think it demands a bit more commitment from the person getting in, it lets
them know that this is not a time for mucking about and that they need to pay attention as serious sh t is about to happen.
It should be easy enough to test the practicalities of it I'd think clamp on a bit of MDF and see what your right arm thinks about it.
Doug. 1TG
Sports Car Builders WA
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nasty-bob
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| posted on 3/12/07 at 10:45 PM |
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I've been doing a bit of thinking about the body lately.
Here are some pics of the basic thing i'm going for.
This is by no means the final design, just an iteration.
Let me know what you think, good as well as bad. But nothing too insulting please
And before you ask,, no thats not me driving.
Cheers
 
Rescued attachment side 2.jpg
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nasty-bob
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| posted on 3/12/07 at 10:46 PM |
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and another
 
Rescued attachment front.jpg
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nasty-bob
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| posted on 3/12/07 at 10:47 PM |
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and another
 
Rescued attachment rear iso.jpg
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Ivan
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| posted on 4/12/07 at 05:26 AM |
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 Big thumbs up from me - would like to see what windscreen would look like on it as that could completely spoil the proportions.
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Ivan
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| posted on 4/12/07 at 05:47 AM |
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re the cockpit area and access discussed earlier in the thread - wouldn't this be another ideal place for some of those laser cut steel bits
rather than tubing?
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nasty-bob
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| posted on 4/12/07 at 06:01 AM |
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quote:
wouldn't this be another ideal place for some of those laser cut steel bits rather than tubing?
aahh yes that would work. Nice one, I'll get it modelled.
Cheers
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ettore bugatti
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| posted on 5/12/07 at 08:39 AM |
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Could you post it in a different colour? Since details are lost in the black.
Looks promising
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nasty-bob
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| posted on 16/9/08 at 09:30 PM |
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Just another bit of an update on my project.
Since last time, I've had the chassis powder coated in graphite gey.
And I've panelled the interior. The ally panels have been laminated with carbon/kevlar.
 
Rescued attachment P1020024-1.JPG
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nasty-bob
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| posted on 16/9/08 at 09:34 PM |
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and I've fitted the honeycomb floor.
This is bolted into the chassis using threaded inserts that are bonded into the panel.
Theres a few more detail on my blog
Cheers
 
Rescued attachment P1020027-1.JPG
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nasty-bob
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| posted on 16/9/08 at 09:39 PM |
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(3 of 3, see page 2)
oh and here's the latest bodywork design. Have got another iteration under way though.
Any comments are more than welcome, good or bad.
Cheers
[Edited on 17/9/08 by nasty-bob]
 
Rescued attachment 08-May-08 7-1.jpg
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Doug68
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| posted on 17/9/08 at 12:02 AM |
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The bodywork is the hardest thing to get 'right' IMHO.
I've come to the conclusion that the the solid modeling tools such as Solid Edge - Solid Works, basically suck at surface modeling. I've
yet to decide what to use instead, I think Rhino may be the way to go but I'm yet to be totally convinced of that.
Doug. 1TG
Sports Car Builders WA
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nasty-bob
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| posted on 17/9/08 at 04:57 AM |
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I use Catia V5 which is very good at surfacing. It's also made by Dassualt so if you can use Solidworks (judging by your avatar you've got
that bit sorted) it shouldn't be difficult to pick up. Solidworks/solid edge aren't really man enough when it comes to complex models and
large assemblies. Catia is built for modelling aircraft- its basically a more industrial tool.
The hardest bit is getting whats in your head, onto the CAD screen. I'm still working on that!
Cheers
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Delinquent
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| posted on 17/9/08 at 11:04 AM |
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quote:
Originally posted by nasty-bob
I use Catia V5 which is very good at surfacing. It's also made by Dassualt so if you can use Solidworks (judging by your avatar you've got
that bit sorted) it shouldn't be difficult to pick up. Solidworks/solid edge aren't really man enough when it comes to complex models and
large assemblies. Catia is built for modelling aircraft- its basically a more industrial tool.
The hardest bit is getting whats in your head, onto the CAD screen. I'm still working on that!
Cheers
knowing the horrific price tag of Solidworks, I can only imagine Catia having the sort of price tag that would make me faint into my cornflakes -
would I be correct in that assumption?
Solidworks is, I agree, not great at modelling surfaces, complex curved surfaces seem to fail left right and centre when I'm using it though I
put that mostly down to being self taught and being a crap teacher
as to getting what's in your head onto the screen - easiest way I have found is not to try and build it up, but to cut it away - just start with
rough blocks of approximate shapes, cut away at it with random surfaces and the like till you achieve what was in your head, then recreate in an
additional part a "proper" structure that you can do the relevant tasks too.
[Edited on 17/9/08 by Delinquent]
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ceebmoj
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| posted on 17/9/08 at 11:27 AM |
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hi there,
just read through the thread and would like say how simple an eligent the fount and rear suspentoion / gearbox mounting looks.
is there any reason why the fount did not end up more like the back i.e. rather than using the diagonal tubes using a plate with diagonal bracing left
in?
also how long did it take you to learn TIG? and what type of set do you have?
blake
[Edited on 17/9/08 by ceebmoj]
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