LocostUSA.com

Learning how to build Lotus Seven replicas...together!
It is currently March 28, 2024, 4:27 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 36 posts ]  Go to page Previous  1, 2, 3  Next
Author Message
 Post subject:
PostPosted: July 15, 2008, 11:06 pm 
Offline
User avatar

Joined: January 23, 2008, 1:33 pm
Posts: 558
Location: Indiana
It could be worse... :P

Image

Made of carbon fiber rods... bare frame weight 2.7 lbs.

http://www.bmeres.com/c-thruframe.htm
.

_________________
http://www.SportsCarDesigner.com .... You want to design your own car... so go ahead. Sports Car Designer is the answer.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: July 16, 2008, 3:04 pm 
Offline
Man of Constant Hazard
User avatar

Joined: February 20, 2006, 11:18 am
Posts: 3186
Location: Lexington, KY
That's just goofy.

Is saving what...5 pounds?...worth all that drag? No way.

-dave

_________________
...nowadays people are so intellectually lazy and lethargic that they can't build ANYTHING with their hands. They'll spend hours watching whiny people marooned on an island, but won't spend a second adding anything to the world. -weconway
Visit my [Locost 7 build log]


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: July 16, 2008, 3:40 pm 
Offline

Joined: August 15, 2005, 10:13 pm
Posts: 7043
Location: Charleston, WV
I had a 3 lb. aluminum frame mountain bike way back in the day about 7 years ago. It was a KHS Alite Team. An awesome hardtail. That thing is just silly. A good hard crash and the rider will look like they got hit by one of those Isreali flachette grenades.

_________________
He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: July 29, 2008, 1:24 pm 
Offline
User avatar

Joined: July 15, 2008, 8:47 am
Posts: 28
Location: Ponchatoula, LA
If you are using a miter saw with a metal cutting blade then all you should have to do is set the saw angle at 14 degrees and the base angle for 14 degrees and all should be good for the LA part right?

_________________
06 Lotus Elise (track pack, LSD)


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: July 29, 2008, 2:06 pm 
Offline

Joined: December 17, 2007, 1:17 pm
Posts: 558
Harponian wrote:
If you are using a miter saw with a metal cutting blade then all you should have to do is set the saw angle at 14 degrees and the base angle for 14 degrees and all should be good for the LA part right?


Basically a compound mitre saw seems to be the cheap saw of choice. Certainly helps. I still had issues with the W pieces, mostly because for too long I thought 52º plus 48º equalled 90º :roll:


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: August 16, 2008, 9:05 am 
Offline

Joined: August 16, 2008, 8:28 am
Posts: 6
Not used this actual model, but I've got the circular saw I use for cutting steel plate and the cut off saw, and I like them.

I've been cutting 3/16" wall 1 7/8" OD tube on my cut off saw with no problems.

The circular saw has a depth of cut of 2" and will cut on the bevel. An angle guide for the other plane and it ought to be possible to cut compund mitres with that.

This is the miter saw, which does box section..

http://www.evolutionpowertools.co.uk/us ... rage3.html

Here in the UK they're not dear, they cut better than the abrasive variety, and are quick.

Bit on the noisy side though so the nieghbours might not like it.


Top
 Profile  
Reply with quote  
PostPosted: March 12, 2009, 8:50 pm 
Offline
User avatar

Joined: June 1, 2008, 10:25 pm
Posts: 6
I done it the easy way and made it out of round tube this requires only one angle
Image
cheers Greg

_________________
Birkin road car
Martin racing locost


Top
 Profile  
Reply with quote  
PostPosted: March 26, 2009, 6:36 pm 
Offline
-the man.
User avatar

Joined: April 7, 2008, 11:21 am
Posts: 841
Location: Tulsa, OK
By yimminy thats one way around it!!!!!

_________________
RacerDan
+442 Chevy 2.8
Never be afraid to try something new. Remember, amateurs built the
Ark, professionals built the Titanic.


Top
 Profile  
Reply with quote  
PostPosted: March 27, 2009, 12:57 am 
Offline

Joined: August 6, 2008, 9:40 am
Posts: 532
Location: Greenville/Charlotte NC
I used the scribe and hacksaw method, I drew all the angles and then cut them. I stared at the CAD for a good 5 minutes making sure the angles were just right on the tubes with the right length, then took another 5 minutes to cut everything. It worked so well I didn't even have to grind it at all!

_________________
+442E, SR20det, Thunderbird/Markviii IRS with clutch lsd, R1 suspension all around, Mustang II 2" drop spindles, Woodward steering rack


Top
 Profile  
Reply with quote  
PostPosted: August 3, 2009, 12:31 pm 
Offline

Joined: July 21, 2009, 1:29 pm
Posts: 18
Location: Outside Omaha
This is a good little thread. It crosses off the list something I would otherwise buy. Hopefully by staying on the powered end of a hacksaw I'll be skinny enough to fit in it when it's done!


Top
 Profile  
Reply with quote  
PostPosted: August 3, 2009, 12:41 pm 
Offline
Mid-Engined Maniac

Joined: April 23, 2006, 8:26 pm
Posts: 6410
Location: SoCal
Please reconsider those suspension brackets. They will see an offset torque and will fail due to them having little to no support. Welding a flat bracket to a round tube won't be reliable. If you choose to leave them as-is, please box them in with bracking to the sides of the tubes. Here's what's going to happen otherwise - note the crack:
Image

_________________
Midlana book: Build this mid-engine Locost!, http://midlana.com/stuff/book/
Kimini book: Designing mid-engine cars using FWD drivetrains
Both available from https://www.lulu.com/


Top
 Profile  
Reply with quote  
PostPosted: August 3, 2009, 6:04 pm 
Offline

Joined: August 13, 2008, 10:36 am
Posts: 352
Location: Lynchburg, VA
Is that a stress-riser I see on the far end of the crack KB58? Looks like a 90 degree notch, :(


Top
 Profile  
Reply with quote  
PostPosted: August 3, 2009, 9:13 pm 
Offline
Mid-Engined Maniac

Joined: April 23, 2006, 8:26 pm
Posts: 6410
Location: SoCal
No, it's just the camera angle. The right side of the bracket is being pulled outboard by bracking force.

_________________
Midlana book: Build this mid-engine Locost!, http://midlana.com/stuff/book/
Kimini book: Designing mid-engine cars using FWD drivetrains
Both available from https://www.lulu.com/


Top
 Profile  
Reply with quote  
PostPosted: August 6, 2009, 10:59 pm 
Offline

Joined: August 15, 2005, 10:13 pm
Posts: 7043
Location: Charleston, WV
KB58 wrote:
No, it's just the camera angle. The right side of the bracket is being pulled outboard by bracking force.


Do you explain "bracking force" in your book? I've never heard of that one. I suspect it describes excessive force placed on a bracket... am I right? :wink:

_________________
He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.


Top
 Profile  
Reply with quote  
PostPosted: September 27, 2010, 11:01 pm 
Offline
User avatar

Joined: September 21, 2010, 8:43 pm
Posts: 158
Location: NORTH VANCOUVER, B.C.
has anyone thought of the bearing surface on those suspension brackets, since youe were talking about brackets???? i was wondering how long it would be before the holes elongated or the bolts failed???? I was also wondering if anyone ever checked those suspension bolts or the elongated holes after a few years of driving down the road with your loved one in the other seat beside you???? Any production car has substansial bushings and bobust brackets with oversized bolts going thru them. These are very important areas of concern.......................


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 36 posts ]  Go to page Previous  1, 2, 3  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 9 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
POWERED_BY