engineering question

[squirdan]

afternoon all

I bought one of the Wevo "SL Superlight" gearknobs for my hotrod mainly because I love the look of it

as seen here: http://wevo.com/Products/ShifterProduct ... SLKnob.htm

what Wevo describe as "tactile" i'd describe as like changing gear holding a cheese grater

before I consign it to use as a paperweight, can anyone recommend a process that would smooth off the harsh edges and leave it lovely and rounded and nicer to hold?

some kind of surface treatment / shot blasting / machine polishing?

cheers

[scalino65]

could you use a handheld sander and if that doesnt work hit it with a grinder and flapwheel?

[haasad]

By a hand held rotary de burrer from an engineers supplier and use it to cut a nice chamfer on each hole. I'd bet its anodised so it will need stripping and re anodising after or have the anodise stripped then de-burr it then bead blast or polish. If you polish it you will get problems with a mop cutting away leading edges of any hole it goes over though........Buy a wooden one !!

[mycar]

Looks nice, I presume it's the edges of the holes that are left sharp from machining ?

I'd get a small half round diamond file and spend an evening just easing the edges, then give it a tickle with a roll of 400 wet and dry, licking frequently.

Mike.

[Nige]

Fill it with expanding foam filler and smooth off.

[Ralph]

I would try a hard rubbing with scotch brite pads such as these: http://www.3mdirect.co.uk/scotch-brite- ... tAodyBoAIg

[neilmcd]

Hi,

Have you thought about tumble polishing/de-burring? If you google "tumble deburring" suppliers are listed.

When I was an apprentice we used machines like this to finish compressor blades that were machined from solid - if you've ever looked in a gas turbine you wouldn't want to do them by hand!! (lots and lots of them!) Quite a gentle process, I think.

No idea how much a 1 off would cost to do though...

Neil

[Jonny Hart]

[jury]

^

'' The string-back just gives you a bit of extra purchase ''

[Winston Teague]

A gentle deburring with a NOGA deburrer on each hole should do the trick. They have an S shaped blade that swivels in the handle. Very efective and easy. If you have a blackened knob, so to speak, you will go through the colour. Type NOGA into ebay. Plenty there. W

[sladey]

I've got the wevo on my G50 box but wasn't wild about the shift stick or knob - looked a bit Star Wars for me. I got my original stick and welded a lump of metal onto the bottom so it would fit into the wevo shifter, then stuck a 917 knob on. Original looking stick and knob but interesting wevo gubbins underneath.

I've got a smooth wevo knob that I'll be selling at some stage

[haasad]

"I've got a smooth wevo knob that I'll be selling at some stage" crikey I know the cars been hard on the finances but selling your knob........

[squirdan]

cant say I fancy fondling someone else knob on a daily basis

but have fitted the smooth one for now that came with the shifter kit

gloves is an aumsing suggestion...string back or "the equaliser" style black leather ??

[Nige]

Full lace gauntlets for me, there is no substitute for superior grip and the open material design puts a stop to any sweaty palm moments.

[911hillclimber]

Best solution:

Fen Lane, £40 or so.