i would say its the transfer port right around the cylinder witch will be made of core materal and removed to make the portsOriginally Posted by FastFred
i'm a wanker
i would say its the transfer port right around the cylinder witch will be made of core materal and removed to make the ports
Forum whore
This pattern making has really got me interested, guess whats next after I have conquered EFI.
No8 Wire Extraordinaire
A sit down with a nice cup of tea & a book?
Don't you look at my accountant.
He's the only one I've got.
Anorak
Nah some liver with some fava beans, and a nice Chianti
ps Dave i thought the same re the Penton.till i went looking for the pic.
Kinky is using a feather. Perverted is using the whole chicken
Forum whore
Right, water core is done.
And poured a cylinder resin core copy
copies of the transfer port
Next I will be building the actual pattern, with these parts inside. Core prints will stick out of the final pattern ( thats all the tapered bits you can see on the ends of everything. It will become clear.
And all together
Forum whore
That is very very clever.
Forum whore
If it's not the continuously variable transmission, then these pictures may be of some use to you:
Forum whore
By using this framework of cores, made in the same boxes that will be producing the sand cores for the moulding, you will get the cores within the mould in the right place. Cores are held in place, in the sand mould, by core prints ( the tapered bits ) seen here on an earlier pattern. The next step is to add " thickness " to the core copies and build the pattern up. I'm not sure I'm explaining the process well, you will see in the next step. You start from the inside first, make the cores, then core boxes, then copies of the cores from these boxes, ( all my original cores are on the shelf now, never used again unless there is a major catastrophe), glues all the cores in place, relative to each other, then add " thickness" to the outside. All these white bits will eventully be hard sand, where you don't want aluminium you need sand.
Forum whore
Thanks for the pictures of the cores.
Looks like the first Team ESE adventure with CVT is going to be Chambers center steer sidecar.
No8 Wire Extraordinaire
Centre steer? Is that where you have a slightly bigger wheel in the middle of the rig & turn that? Radical!
Don't you look at my accountant.
He's the only one I've got.
Forum whore
Looks light it will weigh a ton or two.Thanks for the pictures of the cores.
Looks like the first Team ESE adventure with CVT is going to be Chambers center steer sidecar.
Forum whore
Starting to build the outside shape, beads and bondi fill. Beads are stuck on with a hot glue gun, real pattern makers don't use a hot glue gun, apparently. Or for that matter, plastic beads.
No8 Wire Extraordinaire
Well not at work they probably don't. but at home when making an above the knee, slash front, summer dress they probably do.
Don't you look at my accountant.
He's the only one I've got.
Fair weather rider
Frits are those casting core pictures the RSA or Francis Pyarts FPE ?
Forum whore
Good question, RAW. The pictures stem from Francis Payart who produces exact copies of the RSA parts. The only difference is that the small cooling channels inside the inner curvatures of the RSA's transfer ducts are absent in the FPE cylinders. Understandably so, because they are not easy to cast.
PS: the picture below is from a FOS cylinder; I didn't fancy cutting an RSA cylinder in half. But you'll get the idea.
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