The Bucket Foundry

[F5 Dave]

Every kiwi will have a BBQ outside.
Teflon fry pans need replacement every few years. Go look at yourself. Old ones make perfect vessels.

[husaberg]

Absolutely fine by me. Paypal should make that sort of thing much easier, I guess.
I've just had the Mike Sinclair book shipped to me from NZ, so I should return the favour.
Unfortunately, the company I am dealing with for my composite stuff don't do Vinamold, so no trade discount, but I'm interested to try it, myself, as I've only used bath sealant and "mould rubber" from Vosschemie in Belgium (although they are a german company, I think).

Is the stuff you use reusable?

[guyhockley]

No, two part material - main component plus a catalyst. Vinamold sounds much better, I've ordered some!

[guyhockley]

Google.co.uk came up with:

Vinamold - Best Value - - Direct from the manufacturer‎

Adwww.extruflexonline.co.uk/vinamold‎
Large UK Vinamold Stocks, 24 Hr Delivery

4 hardness types?

I thought Vinamold was american.

[F5 Dave]

I used the beige/grey sort of one, maybe natural. Seemed to work well. Clran bore and duct tape transfers. Squirt of silicon spray in ducts. Pour and cure. Can even top up. Then it will wiggle out with some jiggering. Leaving something at the top gives you a bit to grab onto and keeps the transfer pairs together.

[ken seeber]

OK you blokes chasing Vinamould, here’s the stuff we use. For you kiwi types, it’s “cheap as chups” () around $100 for the 3 kg.



Looked up your local contact:

Barnes NZ - Henderson, Auckland
B92-94 Railside Ave, Henderson, 0612 Auckland.
T: 09 973 1816
E: glen@barnesnz.co.nz


Isn’t anyone casting anything? It’s getting quiet here.

[Flettner]

There is a little family of spiders living in my furnace
Would hate to evict them, with the housing crisis and all.

[guyhockley]

OK you blokes chasing Vinamould, here’s the stuff we use. For you kiwi types, it’s “cheap as chups” () around $100 for the 3 kg.

Looked up your local contact:

Barnes NZ - Henderson, Auckland
B92-94 Railside Ave, Henderson, 0612 Auckland.
T: 09 973 1816
E: glen@barnesnz.co.nz

Thought the OP wanted to try Vinamold (red?) because Frits said it was the best stuff he'd used?
I actually ordered 2 x 1kg lots - 1 definitely for me, the other possibly for shipping to NZ. Then I got annoyed that delivery charges doubled the cost, so I cancelled the order. Can't find a local supplier but we're off to babysit the grandkids, next weekend, and the supplier my daughter used when she was doing theatre props is kind of on the way, so planning to stop off and pick some up.
http://www.tiranti.co.uk/EdgeImpactS...ntent=Vinamold

[WilDun]

There is a little family of spiders living in my furnace
Would hate to evict them, with the housing crisis and all.

Try to coax them out for the day (with a vacuum cleaner) do your casting and then empty the bag into the furnace, ...... a nice warm home to return to - is there a housing crisis down there too?

[ken seeber]

Slider update.

Well, spent a lot of time getting the actual dyno outputs &B software to do even anything. Think the new encoder is ok, but no signal from strain gauge as yet.
The Grand Plan Sam is at least initially to do an unloaded run to see what falls off.
Then hopefully get the load cell to output and do some sort of constant speed run with varying cylinder heights, even at a relatively low rpm, say 6k.
Gotta do this before the 23rd as off for a bit.



As to the spiders Willy, dunno about what sort you gize have in kiwiland, but I haven't seen any over here that even seem to like anything around 750 deg C or even deg F.

[marsheng]

Busy rebuilding the calipers for my dyno. I'm adding a "bit" more grunt to the inertia drum I have. Hopefully I can then tune 2s a bit better.

[husaberg]

Busy rebuilding the calipers for my dyno. I'm adding a "bit" more grunt to the inertia drum I have. Hopefully I can then tune 2s a bit better.

Holden HQ? or Ford Falcon?

[marsheng]

Holden HQ? or Ford Falcon?

Holden I think. 2 disks are from BMW. Same diameter better price.

[Grumph]

Holden HQ? or Ford Falcon?

Well the two rusty ones are HQ - ex me.

For the record I still think that's overkill - the guy here whose car rolling road I was basically copying reckoned two HQ discs would easily absorb 160hp plus...

And he was SAE and AMIMechE qualified. He regularly ran rally and circuit cars on his rolling road.

[Frits Overmars]

Busy rebuilding the calipers for my dyno. I'm adding a "bit" more grunt to the inertia drum I have. Hopefully I can then tune 2s a bit better.

For the record I still think that's overkill - the guy here whose car rolling road I was basically copying reckoned two HQ discs would easily absorb 160hp plus...

Also for the record: I think it's not only overkill; it can also be dangerous. Too much braking may result in the whole dyno stand somersaulting.

I assume you are adding those brake discs in order to increase the total inertia. It will work, but it will do more than just that.
Those discs act as ventilators which will absorb an unknown amount of power. It's the same with retarder discs: you can calculate their inertia but you will need to make a coast-down run in order to measure the total absorbed power (friction + ventilation).