stroker crank anyone

[SuperJETT]

I'd recommend using Hickory, should be pretty strong if you have the grain going the right way.

Oh, you said prototype....

I think it'd be awesome to have a crank built of wood, stained and polyurethaned, and sit it on my desk at work.

 

[eel]

And you could true it up with a spokeshave!:biggrin:

 

[waxhead]

thanks eel and superjett
i am making it out of mdf at the moment

i am not sure about the properties of the wood under the load
but i will let you know

yeah its going to end up on the shelf
as to the questions about rapid prototyping i am using an mdx20 roland mill

 

[waxhead]

this is my wooden crank web i have made to make sure my drawing was ok before it goes to the machinest

 

[douglee25]

Looks good wax!:Banane01:

Doug

 

[onesojourner]

watch out wax is going to TAKE OVER THE WORLD!! this is so awesome that you are doing this.

 

[Powder]

Not to be a downer but what about copyright infringement? It looks to me like you are basing/copying your part off someone else’s product. If the copyright has expired then more power to you, if not well… just my .02

 

[waxhead]

its a crank for a superjet how much difference can there be on it

by the time you balance it there its going to be the same as every one elses anyway
there is not much you can do about it

 

[Mile9c1]

Not to be a downer but what about copyright infringement? It looks to me like you are basing/copying your part off someone else’s product.

Dude, he's got nothing to worry about. There's no laws protecting a crankshaft, even if he makes a dead nuts RAD copy.

 

[Cane700]

Wax, are you going to make any 8mm stroker cranks?

 

[waxhead]

at the moment yes i am
but i al just going to a new company now to cnc mill them out and will make sure that the pricing is all ok and then i will make some

 

[LBE]

watch out wax is going to TAKE OVER THE WORLD!! this is so awesome that you are doing this.

HAHA, thats what I was thinking. What other cool products do you have comming out?

 

[Cane700]

at the moment yes i am
but i al just going to a new company now to cnc mill them out and will make sure that the pricing is all ok and then i will make some

I need to get a reasonably priced 8mm crank so please keep me posted.

 

[waxhead]

sure i am just checking all the programing and making sure it all ok before it hits the market
I found one small error but i have a week off from my normal job in a couple of weeks

So i will be talking with my mill company then and making sure its all ok
it has to be nitrated for strength afterwards as well as the journels have to be ground as i cant mill them round enough to run a bearing correctly
so there is a few things to check out

So far i have made about 5 cranks out of wood just checking stuff out

 

[waxhead]

I have a few other products on the computer i am looking at as well
There was an issue with my milling company and thats why things have taken longer than i expected
i am onto a new company and i will be hopefully better off with this one
it will cost me more in the initial start up
but i will end up owning all the drawings

 

[Cane700]

Is one of those few other products a b-pipe manifold that clears clears powervalves on a lamey cylinder?:thinkerg: :saevilw:

man I'd love to see that

 

[waxhead]

no its not
but how cool would that be
i have two b-pipes here at the moment i am thinking about sending one to paul to get him to modify it

 

[waxhead]

just as a teaser here is some drawings i have been working on
not saying its going to happen as soon as i would want
and i have yet to cut the ports in the cylinder as well as the water jackets

but you get the idea

 

[RMBC Freeride]

Wax, make sure you have a nice radius on the stout of the crank where it meets the web. Whether it be a fillet machined in or just a good nose radius on your cutting tool. i have heard of some early stroker cranks that failed here due to the stress riser caused by the sharp corner.

Just what I have heard... but thought it was worth mentioning!

 

[waxhead]

yeah you mean the 650 cranks
i will do a radius on there to stop that

thanks for the info
the drawing i posted before are just the very early ones they have changed a bit since the