ESE's works engine tuner

[TZ350]

More interesting bikes

[TZ350]

BOB Start



F5Dave Leads



Diesel Pig going around the outside.



The mighty GN



The Carousel in the background then the drop into the sweeper.



The entry to the sweeper was really scary fast. In fact I had my eyes shut most of the time I was riding around.

[TZ350]

Spent Sunday afternoon at the CHCH Air Force Museum. Free entry and they have a great Cafe with power points and free WiFi and realy good coffee.

[timg]

Glad to see you got a shot of me beating that pie eating poofta on the GN Pesky bugga was there ready to pounce every time I tried to have a nanna nap. Had a good battle with Kick for the entire BOB.....the mighty FXR triumphed over the GN in the end

[Yow Ling]

.....the mighty FXR triumphed over the GN in the end

they always do

[Drew]

That number 34 GL is awesome. I spent Saturday working on mine to make it look like a flat tracker.

Wonder if that one has after market ignition though. Mine runs fine without a battery.

[Flettner]

[IMG][/IMG]

First there was this

[Flettner]

[IMG][/IMG]

And then this

[Flettner]

[IMG][/IMG]

Then after pouring a mould I cut and changed the shape to the curve I wanted

[Flettner]

[IMG][/IMG]

Then a female mould made to make more replicas

[Flettner]

[IMG][/IMG]
[IMG][/IMG]
[IMG][/IMG]

The exhaust core is taking shape.

[F5 Dave]

BOB Start



F5Dave Leads

. . .

Sorry I let the side down. Team 'old fat man on a 2 stroke' 0, Young skinny kid on an FXR 1.

[TZ350]

Then after pouring a mould I cut and changed the shape to the curve I wanted

Then a female mould made to make more replicas

Pattern making, this is very interesting and getting me interested in having a go myself.

What is the white material you used for the male part and the green material that the female mold was made from?

[Flettner]

[IMG][/IMG]

This mould will be the sand core eventually, so this shape will be replicated in hard sand.
Where you don't want metal, you need sand ( a core ). This is what's called a core box.
To build a pattern like this you start with the cores first.

[IMG][/IMG]


Green stuff is bondi fill, just mix it up and press the part you want to copy into it. MUST wax the male part first.
White stuff is casting resin, two pot mix. Sets with a faithful size, no shrinkage or expansion.

[F5 Dave]

Looks pretty cool.