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Soap box kart progress
nick205 - 27/6/13 at 03:50 PM

More progress last night, got the steering uprights finished and attached to the chassis. All seems to work OK, with tonight's task to fabricate the steering column and supports. Rod ends are on order along with threaded rod to make up the track rod arms. Race day is Sunday 30th @ 2pm

Steering geometry has roughly 2 degrees negative camber and 6 degrees caster. Steering arms have been set with Ackerman geometry aligned with the centre of the rear axle line.

My welding is improving all the time too, with better metal prep and setup I'm getting the right penetration.










doobrychat - 27/6/13 at 04:39 PM

looks good... radius a few edges and chuck it through the iVA after...

TimEllershaw - 27/6/13 at 04:57 PM

Looking Good !

Our attempt is a little more "rustick"

Team DuctTape
Team DuctTape
"Team DuctTape"

Heading for the Hinckley Soap Box Derby in 2 weeks time.

richard - 27/6/13 at 06:12 PM

Look good, would love to have a crack at one but run out of kids young enough.
Rich.

nick205 - 27/6/13 at 06:22 PM

quote:
Originally posted by richard
Look good, would love to have a crack at one but run out of kids young enough.
Rich.


Don't be fooled, I'm building this for me (but don't tell my son). My neighbour won last year and needs beating this year

nick205 - 27/6/13 at 06:24 PM

quote:
Originally posted by TimEllershaw
Looking Good !

Our attempt is a little more "rustick"

Team DuctTape
Team DuctTape
"Team DuctTape"

Heading for the Hinckley Soap Box Derby in 2 weeks time.


Nice, like the body shape!

Not sure I'll get as far as bodywork in time for Sunday.

Barkalarr - 27/6/13 at 07:29 PM

Those wheels certainly look a little different than when they left here last week !

I wondered what you were going to do with a set of wheel chair wheels..... and now I know.
and it also looks like you have 1 less chair in the meeting room at work now... brilliant !

nick205 - 27/6/13 at 07:44 PM

quote:
Originally posted by Barkalarr
Those wheels certainly look a little different than when they left here last week !

I wondered what you were going to do with a set of wheel chair wheels..... and now I know.
and it also looks like you have 1 less chair in the meeting room at work now... brilliant !



LOL, yup, now you know what you were helping with!

The chair was a find at the local tip and cost me £2. I think I'm in for £150 so far in materials and consumables

Aaron_n_Sim - 28/6/13 at 08:37 AM

quote:
Originally posted by richard
Look good, would love to have a crack at one but run out of kids young enough.
Rich.



I've got half a dozen you can borrow

Volvorsport - 28/6/13 at 09:11 AM

why arent you sitting lower.....

ive got a couple of heavy flywheels that would suit....

scimjim - 28/6/13 at 09:33 AM

looks great fun - I'd definitely gusset those uprights top & bottom though? For the amount of time & work it would take, they'd share out a lot of the bending stresses on that point?

nick205 - 28/6/13 at 12:02 PM

quote:
Originally posted by Volvorsport
why arent you sitting lower.....

ive got a couple of heavy flywheels that would suit....


May well lower the seat in the chassis, but it's a case of time to get it finished right now. It's also been made with conversion to petrol power in mind after the push kart race. Then it'll be on much smaller diam wheels.

nick205 - 28/6/13 at 12:03 PM

quote:
Originally posted by scimjim
looks great fun - I'd definitely gusset those uprights top & bottom though? For the amount of time & work it would take, they'd share out a lot of the bending stresses on that point?



I think they'll hold for the race, but may well add gussets to be safe.

loggyboy - 28/6/13 at 12:34 PM

Where is this race? sounds like great fun!

[Edited on 28-6-13 by loggyboy]

Fred W B - 28/6/13 at 12:43 PM

Looking good! What wall thickness material is the front "axle" made from? If its only 1.6mm I'd be worried about it bending

Cheers

Fred W B

nick205 - 30/6/13 at 08:22 PM

quote:
Originally posted by loggyboy
Where is this race? sounds like great fun!

[Edited on 28-6-13 by loggyboy]


Kings Worthy, just outside Winchester, last weekend in June every year

nick205 - 30/6/13 at 08:24 PM

quote:
Originally posted by Fred W B
Looking good! What wall thickness material is the front "axle" made from? If its only 1.6mm I'd be worried about it bending

Cheers

Fred W B


25x25x3mm box section, easily takes my 75kg bouncing in the middle.

loggyboy - 30/6/13 at 10:13 PM

How did you get on? Pics of the built car too plz!