Identify the mystery object

[evildrome]

Hi All,

I have been busy recently (see attachment).

The first person to correctly identify the object will win a prize related to the object itself.

Cheers,

Wilson.

[metiz]

cast mould for valves

[Mark]

Something to light your hat on fire.

[tufty]

6-gang banana straightening jig.

[metiz]

At least tell us if we're right or not :p

[PyroJoe]

I've seen these before. They are used as a lever to pry money from your wallet. AKA bank account floor drain.

[evildrome]

Nice Mr. Metiz!

Almost absolutely correct. Its a pattern, not a mould. But I'll accept that that's what you meant.

Your prize is the first set of valves to come from this pattern.

Its actually a master pattern. An RTV daughter is cast and then a resin copy & that is what is used to make the sand mould.

The wax would wear out very rapidly if used to make sand moulds directly.

Cheers,

Wilson.

[metiz]

Ha cool!

What kind of metal alloy will you be using for the casting? Looks like it's for a pretty big engine!

[Mark]

Something to light your hat on fire.

I remembered your hat post/flame by frame from long ago Wilson, for those who weren't around from days gone by.
http://www.pgoffline.com/flamer01.htm

[evildrome]

Hi Mark,

Thanks, I had forgotten about that.

Mr. Metiz, the metal will be aluminium. The length is about 100mm (4 inches).

I'm aiming for a jet big enough to power a bike or cart, say 50 - 75lbs thrust.

The idea is very much along the lines of a Solarjet.

I will be making a valve holder to hold the valves in place as a casting also.

It will be easier to design once I have made the actual valves.

Cheers,

Wilson.