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Author Topic: CK 1 (ERA) build  (Read 396 times)

ChrisS

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Re: CK 1 (ERA) build
« Reply #15 on: 14 April 2019, 08:12:38 am »
Well it's now just 3 weeks till Stretton and I'm determined to bring something that can propel, steer and stop itself, on the shale or in the car park at least.  I guess that means some long days in the workshop, but I have most of the key components, so now all I have to do is make all the bits that hold them together!

Progress pics will follow (I hope)!


ChrisS

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Re: CK 1 (ERA) build
« Reply #16 on: 14 April 2019, 06:55:49 pm »
Current progress - Engine mount and caliper mount done and tacked in. Turning my attention to the front end next - springs and hangers.

ChrisS

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Re: CK 1 (ERA) build
« Reply #17 on: 20 April 2019, 10:19:03 pm »
Well now it's just two weeks to Stretton! The good news is that I am now on 4 wheels, but it took me much longer than I anticipated.  Just got to sort out steering, braking, throttle, glue up the tub and fix it in, -  easy.

Graham Hill

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Re: CK 1 (ERA) build
« Reply #18 on: 21 April 2019, 06:42:17 am »
There's nothing like a deadline Chris. That's good progress since Coventry!

Steve Cole

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Re: CK 1 (ERA) build
« Reply #19 on: 21 April 2019, 08:34:13 pm »
Looking great, 14 days to go  8)

StefanN

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Re: CK 1 (ERA) build - how's it going?
« Reply #20 on: 16 May 2019, 01:59:43 pm »
How's your build going Chris?

ChrisS

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Re: CK 1 (ERA) build
« Reply #21 on: 17 May 2019, 04:34:35 pm »
OK, well I pushed so hard to get it running for Stretton, that I've had to step back and catch up with a few other things, so progress has been slow.  Stretton went well and the only issue I had was with the axle keys becoming loose and working along the keyway.  I just taped them in place on the day, but I'll look at that in due course.

I've started on the bodywork at the front, using MDF for the nose and some left over 0.9mm ali sheeting. I need to fill and sand the nose to it's final shape and then figure out the grille. For the main panels with simple curves, bonnet etc. I've bought some 1.2mm sheet, and I'll put off anything with compound curves until I feel inspired!

RhysN

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Re: CK 1 (ERA) build
« Reply #22 on: 18 May 2019, 10:52:46 am »
Common cure for moving keys is a hose clamp, or many karters tape the entire axle with insulation tape.
I have some grille material here I can donate to the cause.

ChrisS

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Re: CK 1 (ERA) build
« Reply #23 on: 18 May 2019, 01:27:22 pm »
Thanks for your offer Rhys, I was going to use some left over eml, what do you have?

RhysN

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Re: CK 1 (ERA) build
« Reply #24 on: 18 May 2019, 02:05:44 pm »
Expanded mesh which I got for my ERA after looking closely at the real thing.

ChrisS

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Re: CK 1 (ERA) build
« Reply #25 on: 08 June 2019, 10:16:03 am »
I've been making my steering wheel, hoping to finish it over the weekend.  I've borrowed the boss design posted by our French friends. Here is an exploded diagram I did on Sketch Up,
[ Guests cannot view attachments ]
Some pics of the rim, I'm using 2 layers of 12mm ply which will be glued and then I'm planning to string wrap it. [ Guests cannot view attachments ]

ChrisS

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Re: CK 1 (ERA) build
« Reply #26 on: 15 June 2019, 08:01:14 pm »
The steering wheel is almost finished and there are a few things I would do differently next time, more slender spokes for starters.  I naively thought the stringwrap would be a doddle and that I would go right round the wheel in one piece of string and just have one join.  After 3 attempts I gave that up and started again accepting that there would need to be a number of joins.  It is a 13 inch wheel and it took over 50 mtrs of string!  I plan to give the string a coat of varnish to help stabilise it and tone it down.

StefanN

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Re: CK 1 (ERA) build
« Reply #27 on: 15 June 2019, 09:38:05 pm »
That’s a lot of string!  Nice result - I like the way you’ve worked around the spokes with the string.

Chris Brown

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Re: CK 1 (ERA) build
« Reply #28 on: 16 June 2019, 08:42:33 am »
Looks great Chris, I'll have to pinch that method for dealing with the spokes for my next kart. The wheel I'll be using has tapered spokes so it'll be slightly easier to cope with.

TheGiantTribble

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Re: CK 1 (ERA) build
« Reply #29 on: 16 June 2019, 09:02:05 am »
Yikes.... there's a hell of a lot of work just in the string
Looks great and well worth the effort.