Ognibs mini kart

[Ognib]

Ognibs buggy build

The beginning of the story is here.

http://www.diygokarts.com/vb/showthread.php?t=34460

Today I'm mocking some material for layout of the main front & rear crossmembers. Design elements will be like the panels for the side rails for visual continuity.

I'm working with aluminum rather than steel, for a couple of reasons:

I know the guy who owns a large metal recycling business & he has a half acre of aluminum piled around, at least. Industrial off cuts etc. He lets me in to dig around & sells to me for, depending on the market, about $1.00 lb.

Secondly, I've become a fan of the construction techniques used on the WW2 heavy bombers. Light weight materials, gussets, spars & lots of rivets. Capable of heavy loads & stresses.
Thought it'd be different to try it on this project & see what I can do with it.

 

[ironman]

different should be very neat.so im guessing same for the wheels and seat

 

[Ognib]

Appreciate the comments.
Different is what I'm looking for. Hadn't thought much about a seat. Steel wheels for now that I have laying around. Spend my money first on getting it running in a very basic format. Then add refinements ongoing.

Couple of vids that I've been studying the building styles.

https://www.youtube.com/watch?v=FfbfDjqc4-4

https://www.youtube.com/watch?v=fsIvawjGAsA

 

[Ognib]

 

[Ognib]

It's the weekend.
I've located 2 motorcycle salvage operations within reasonable driving distance.
Going shopping for a drive train for this thing.

 

[Ognib]

Hi Randy, thanks for looking...appreciate the comments.

I'm adding an inner set of rails to manage the engine, driveline weight & torque.
Will be lightened to match the sides of the cage.

What I have shown here is 14 lbs. Not sure what driveline weight will be.
I'd like to see a total vehicle weight of around 100 lbs, with at least 20 hp in power...cause it's all about power to weight & I want it to jump up & down & spin around when I nail it!!
But I'm just semi-informed guessing at this point.

I've noticed in a few threads, request for thumbnail pics. If my stuff is too large, please say so & I'll figure out how to reduce their size.

http://www.diygokarts.com/vb/attachment.php?attachmentid=77793&stc=1&d=1477070747

http://www.diygokarts.com/vb/attachment.php?attachmentid=77793&stc=1&d=1477070747

 

[Hellion]

Photobucket is not loading the photos on my end (what pics!?) and no one likes PB. Reconsider uploading them to DIYGK so they will always be here.

I've noticed in a few threads, request for thumbnail pics. If my stuff is too large, please say so & I'll figure out how to reduce their size.

 

[Ognib]

From the manage attachments feature, below the reply box?
Will it size them properly?

 

[Hellion]

It will size them in thumbnail size for previewing, but will expand once clicked upon. Give it a go!

 

[Ognib]

I reloaded my previous post. Is that ok? If so, I'll go back & change the others as well.

 

[Ognib]

Yep, lowering weight has the same performance effect as does adding power.
It reaches a tipping point where traction...getting it to the ground effectively...becomes a key factor in the equation.

Case in point: any AA fuel dragster or funny car.

What I'm planning will be more like the old short wheelbase fuel altereds. Fast & squirrelly as all get out. But with a sprint kart look.

LOL, yesterday, I looked at an overhead cam, inline 750cc 4 cyl honda with 5 speed for a very attractive price. It is way to large physically for my chassis package. Otherwise, I was seriously attracted to that engine.

Wild Willie Borsch!

https://www.youtube.com/watch?v=wqU95SZ6H-o

 

[Ognib]

ItSid, you mentioned window regulators for steering on this thing.
Any particular models that You could suggest as a starting point in my research?
Thanks.

 

[Ognib]

Haven't been around much.
In the process of moving.
New shop space will be 5x what I've been working in. !!

 

[ezcome-ezgo]

Don't quit posting, I want to see the end result.

 

[Ognib]

As Arnold says, "ahll be bakk".
The move will be finished this weekend...get the shop set up after I take care of all the wife's honey do's & then back at it.

 

[Ognib]

Getting settled in to the new house & finally a bit of time for getting my shop set up.
Still a bit cluttered & not quite organized.

8' of new bench space, a build table for the project in the center with accessibility on all 4 sides & a bench for my mill with roller slide drawers for tooling.

Also, my buddy & administrative assistant, Lou thu dawg.

 

[Ognib]

A little more shop development.

Boxed in around the mill to help with chip containment.
I broke down all of my benches & shelves when I moved & I've still got some odd sized pieces for stuff like this.
I build with screws rather than nails, so it all came apart very cleanly & easily.

Plus, the light colored sides help with light saturation on the work area.

My collection of tooling is growing slowly but constantly.

 

[Ognib]

Being an old guy with a young mans mind trapped inside, I didn't get my first computer until I was in my 50's.
So I'm kinda excited that I figured out how to set up an account with utoob without any help from the kids.
I've got one vid uploaded...this is a test just to see how it works.

https://www.youtube.com/watch?v=a-MDNDVUtSI

---------- Post added at 05:56 PM ---------- Previous post was at 05:54 PM ----------

Well, all righty now!

 

[Ognib]

Researching ackerman & bump steer for my project.
Found this home built rack & pinion steering. Thought it was interesting.

What say ye? Viable concept?

https://www.youtube.com/watch?v=_YwCUSIA2mE

 

[Ognib]

A quick update on what's happening on the project.

I'm actively shopping for the right engine at the right price for this thing.

The plan is for independent suspension front & rear. Set up to run on asphalt & to turn both right & left.

Been reviewing this book, shown in attachments below, which I've owned for 20 yrs, at least. Carroll Smith prepared cars have won LeMans & the manufacturers world championship, piloted by notable drivers such as Andretti, Foyt, Gurney & others.

The principles contained therein apply just as well scaled down as in 1:1.

Also found this physics forum which has this large thread on the science & engineering of race suspensions.

https://www.physicsforums.com/threads/race-car-suspension-class.326355/

Got the last of my benchwork built. Still have shelves to build but not until I've got good insulation in the walls.
Here's a vid of the current shop configuration.

https://www.youtube.com/watch?v=Gt36_5R4iuo