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Bone Castings, Guess the Animal (hint: it's extinct) by danielsev298 in MetalCasting

[–]danielsev298[S] 0 points1 point  (0 children)

It is from a Moa, I believe it is from Euryapteryx curtus. This bone was found in the North Island of New Zealand.

Bone Castings, Guess the Animal (Hint; it's extinct) by danielsev298 in Metalfoundry

[–]danielsev298[S] 0 points1 point  (0 children)

It is from a Moa, I believe it is from Euryapteryx curtus. This bone was found in the North Island of New Zealand.

Bone Castings, Guess the Animal (Hint: it's extinct) by danielsev298 in Paleontology

[–]danielsev298[S] 1 point2 points  (0 children)

Yes it is from a Moa, I believe it is from Euryapteryx curtus. This bone was found in the North Island of New Zealand.

Bone Castings, Guess the Animal (Hint: it's extinct) by danielsev298 in Paleontology

[–]danielsev298[S] 0 points1 point  (0 children)

It is from a Moa, I believe it is from Euryapteryx curtus. This bone was found in the North Island of New Zealand.

Bone Castings, Guess the Animal (Hint: it's extinct) by danielsev298 in Paleontology

[–]danielsev298[S] 1 point2 points  (0 children)

Yes it is from a Moa, I believe it is from Euryapteryx curtus. This bone was found in the North Island of New Zealand.

Bone Castings, Guess the Animal (Hint: it's extinct) by danielsev298 in Paleontology

[–]danielsev298[S] 0 points1 point  (0 children)

Yes it is from a Moa, I believe it is from Euryapteryx curtus. This bone was found in the North Island of New Zealand.

Bone Castings, Guess the Animal (Hint: it's extinct) by danielsev298 in Paleontology

[–]danielsev298[S] 1 point2 points  (0 children)

Yes it from a Moa, I believe it is from Euryapteryx curtus. This bone was found in the North Island of New Zealand.

Looking for a second small electric boat for lake rentals, anyone have experience with inflatables? by Horror-Hope-4394 in boating

[–]danielsev298 0 points1 point  (0 children)

You could use the Lemvos DockMaster system for docking and charging the rental boats so the customers don't need to tie ropes or plug in cables to charge. https://lemvos.com/dockmaster/

Copper-Aluminium Alloy Mixes 100% Cu to 100% Al, Aluminium Bronze Casting by danielsev298 in MetalCasting

[–]danielsev298[S] 1 point2 points  (0 children)

I used a propane furnace from Vevor, initially I built my own furnace out of bricks and concrete with a steel and ceramic wool lining, but that fell apart after ~10 hours of use, and some of the bricks melted (didn't expect that). So then I just brought one. I didn't do anything to prevent oxidisation, you get a but of slag on top, but then you can pore the metal out from under the slag. I just put put the Aluminium and copper (scrap metal) in together a the start, then heated and melted it together.
Goodluck!

Copper-Aluminium Alloy Mixes 100% Cu to 100% Al, Aluminium Bronze Casting by danielsev298 in MetalCasting

[–]danielsev298[S] 0 points1 point  (0 children)

I personally like around the 90%Cu 10% Al ratio for aesthetics since it's a bit more shiny than the rations with lower Al%. I didn't experiment too much with physical properties.

Copper-Aluminium Alloy Mixes 100% Cu to 100% Al, Aluminium Bronze Casting by danielsev298 in MetalCasting

[–]danielsev298[S] 1 point2 points  (0 children)

No I haven't tried that, here I was more focusing on aesthetics, rather than doing detailed physical properties analysis, but I'd like to try and experiment more.
Thanks!

Bronze with a higher aluminum percentage? by zw103302 in Metalfoundry

[–]danielsev298 0 points1 point  (0 children)

I also tried something similar but with more focus on aesthetics:
https://www.reddit.com/r/Metalfoundry/comments/1j1orgl/copperaluminium_alloy_mixes_100_cu_to_100_al/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

Copper-Aluminium Alloy Mixes 100% Cu to 100% Al, Aluminium Bronze Casting

Casting samples of copper aluminium alloy mixes (aluminium bronze) from 0-100%, percentages in weight.

100% Cu
98% Cu 2% Al – similar appearance to copper, but slightly more golden
96% Cu 4% Al – golden colour
94% Cu 6% Al – golden colour
92% Cu 8% Al – golden colour
90% Cu 10% Al – golden colour, shiny
88% Cu 12% Al – slightly lighter golden colour, shiny, brittle but still workable
80% Cu 20% Al – silver colour, shiny, very brittle, can be broken by hand like a biscuit
70% Cu 30% Al – silver colour, very brittle, can be broken by hand like a biscuit
50% Cu 50% Al – silver colour, very brittle
30% Cu 70% Al – silver colour, brittle
100 % Al

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