today's work

[Rick Teskey]

Why did you decide way back when (skip jack?) and presently on making stern sections out of cast resin you may have said in the past and I have forgotten or nobody listens to you anyway..?
Could same tool be used ,not the inner displacement plug just the outer skin for grp layup or would cross section be too thin too retain shape?
just kidding about not listening....Zzzzzzzzz

[Albacore 569]

So you insert the prop shafts before molding and I assume they are coated with a separator, so they twist free and turn when the casting is taken out of the mold? Or the shafts just rod as part of the casting process with slightly larger diameter & removed after to repeat on other castings - the channel is slightly larger for the actual prop shafts?

[He Who Shall Not Be Named]

Damn, that's a lot of BJB!!!

Yeah. Imagine if I had not put those displacing hunks into the flasks beforehand!

[Davjacva]

Damn, that's a lot of BJB!!!

[He Who Shall Not Be Named]

[He Who Shall Not Be Named]

incorporate prop tubes in the horizontal stabs during final casting?

Stay tuned... same bat-time, same bat-channel.

[redboat219]

incorporate prop tubes in the horizontal stabs during final casting?

[He Who Shall Not Be Named]

Still go into the pot for pressure curing?

Yup. Details on that process to follow...

[redboat219]

Still go into the pot for pressure curing?

[RCSubGuy]

Masterclass on molding and casting complex parts. I love it!

[He Who Shall Not Be Named]

Slush casting?

No. Though without a core -- as the tools appear to be at this point of construction -- slush casting or GRP layup would be the only way to achieve a hollow part. But I'm not finished with the tools yet, the next operation is to form a core that will produce hollow parts. That process should be completed today. Casting of the first parts tomorrow.

Here are some examples of RTV rubber tools that employ a core:

[redboat219]

Slush casting?

[He Who Shall Not Be Named]

[He Who Shall Not Be Named]

Are you using the foam to reduce the amount of rubber required for the tool, or as a means to increase stiffness in the mould?

Both. The displacing foam helps to ensure proper registration of the rubber elements within the flask when preparing for a pour. This will become apparent come the next couple of installments.

[Subculture]

Are you using the foam to reduce the amount of rubber required for the tool, or as a means to increase stiffness in the mould?