Cooks Cranks refurb with logo etching

stevet1

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Probably one of the first bits of proper pimpy anodised kit I bought BITD was this set of cooks 'E' cranks, I spent a good deal of my student loan on them :). Originally purple they were de-anodised and polished up a long time ago, and have graced many of my bikes. I wanted to use them on my latest build so decided to treat them to a refurb with fresh anodising. But I also wanted to bring back the cooks logo, I considered using decals but thought they might rub off in use. So I experimeted with using reverse decals and caustic soda. Heres the results.

I spent a bit of time polishing them up with 800 wet and dry followed by plenty of buffing with brasso
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sent them off to mansfield anodisers and got them back yesterday. Cost me around 44 quid with a ringle seat collar done at the same time.
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I'd describe the finish as satin rather than glossy but thats fine as it suits the rest of the parts I have.

Now the tricky bit as I take a brand spanky looking set of cranks and apply a reversed decal (from gil, who else) as centrally as my cack-handedness will allow. This took me 4 frustrating goes. I then masked all around it with duct tape to catch any drips from the caustic.
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I was planning to leave the cranks like this for a day to allow the decal adhesive to cure properly to reduce the chance of the caustic seeping over and giving blurred edges.
Who was I kidding, 2 hours later I am ready to go, bucket of water ready to dunk the cranks in, and caustic solution in small container.
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Right no going back I’ve mixed up a fairly strong solution of caustic and using a cotton bud I applied a small amount of it to the exposed part of the crank arm. First I made a quick pass to cover the logo with caustic followed by a slower pass working it into the edges etc but obviously not enough to lift them. Left the solution on for about 20 seconds then dipped the whole crank arm into a bucket of cold water and rinsed. It took about 2 cycles before you could see the ano coming off, and about 5 before the logo looked sharp.
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I then soaked the crank arm in warm water to soften the adhesive and removed the duct tape and the reverse decal.
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Some TA chainrings and black bolts and they're ready to mount on the bike :D .
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JeRkY

Retrobike Rider
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nicely done, I fancy doing that on atleast one of my pair ive just posted up.

How much was the annodising?
 

stevet1

BoTM Winner
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Cheers fenton, I think Jerly just looked at the pictures :)
Cost breakdown was £30 plus £8 return carriage plus VAT = 44.65.
 

slimjoe

Old School Grand Master
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Superb

Superb job Steve, and very,very brave after outlaying the money on the ano job ;)

It payed off they look superb :D
 

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