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my first home aluminum casting attempt (lost wax)


my first home aluminum casting attempt (lost wax)

Casting Brass: My first attempts!

Hey guys! Today I wanted to try and see just how difficult it is to construct a forge, crucible and torch assembly and melt some brass down for a beginner! These are my first attempts and failures! hopefully I can get a better forge up and running soon and melt some other metals such as aluminum (which probably would have been easier)

I'm by no means an expert and this is well outside my wheelhouse of knowledge, so feel free to leave a comment with some tips or criticism!

Also be sure to check out Grant's video on his torch and furnace for a more laid out instructional on creating your own forge, mine is a bit different, but the same principals apply.

Amazon affiliate links (these help grow the channel, every purchase gets me a small percentage of the sale, it costs you nothing though!)

Main camera:

orange camera:


cheap shotgun mic:

bendy tripod:

gopros used:


instagram user: PeterSripol
Noir by S Strong

LAMOTHERMIC - Lost Wax Castings

This video was shot in 1996 at the Lamothermic factory in Brewster New York. Produced by Paul M. Levine, the video depicts a process called lost wax casting.

Cut to industrial music, the video portrays a bygone age of manufacturing in the United States. It also depicts the end of a time when these type of manufacturing jobs existed in our country.

This ageless process begins by making a part in wax, then assembling these parts on a tree, that is then covered by layers of hard material that makes a mold. Once hardened, the wax is melted out of the mold and various types of molten metals, i.e. steel, copper, aluminum, etc. are now poured into the void that was left AFTER the wax was melted out.

Once the metal cools off, the piece is cut off the tree and the flash is removed. The part is then machined into a final finished product. This process is used even today in the making of car parts, golf clubs, guns, model train engines and any thing that requires metal to be molded into an object.

Lost PLA aluminium casting. First attempt.

This is my first attempt at lost PLA aluminium casting. The results are far from perfect, but It looks very encouraging. Post burnout the mould looked clean, so I think the problem is my casting technique. Anyone know what went wrong ?

Investment Casting (lost wax/solid mold): General Foundry Service

General Foundry Service
Cast & Machined Aluminum Components Since 1946

Aluminium Lost Foam Casting Experiments and Tips

Lost foam is about as easy as metal casting can get! It takes minutes to make and set up a mold for casting. I experiment with different sprue lengths and different types of foam in this video. More casting videos coming soon!
Thank you for watching!

Dave Stephens bladesmith: 1st attempt lost wax casting.

model engine block casting

Working on a lost pla casting of a model engine block.
This will be a very difficult cast. In this video i try to explain the difficult areas and how I hope to address them...

Lost Wax Casting Tutorial

In this video, Dave takes you from start to finish as he demonstrates the technique of Lost Wax Casting to make a sterling silver belt buckle.

Items used in this tutorial:
sterling silver
rubber cement
dremel tool
modelers sheet wax
sprue wax
carving wax
casting investment powder
oxy acetylene torch
burn out furnace
angle grinder
polishing wheel
sodium bisulfate
liver of sulfur

DIY Cast Aluminum Butt Plug

This is my first attempt at this process. Turned the threaded adapter on a real lathe which I do not own. Made my own ghetto lathe from a big brushed DC motor I happen to have and a plastic storage tote.

So: make a wax part,

cover wax part in heat resistant plaster/ceramic whatever (BUT NOT CONCRETE).

melt out the wax

Melt aluminum as per

pour in the metal

break off the mold.

clean up the part.

This process is called investment casting, or lost wax and very good parts can come from it, but I haven't quite figured it out.

Maybe I need to use some other ceramic mold instead of plaster, because it seems the plaster soaks up some wax and that wax vaporizes in extreme heat, which prevents the mold from filling properly. Or maybe soy wax isn't the best kind to use, idk.

Investment Casting or lost wax casting demonstrated

This video on Investment or lost wax casting covers making a mold of a pattern , wax injection, treeing the waxes, investing the waxes, pouring the metal,and removing the castings from the tree.
Inlay techniques for the woodworkers, jewelers or hobbyist are discussed

By Paul Hamler

Sreetips Chess Set Lost Wax Casting Silicone Mold

To contribute:

I made a silicone rubber mold and inject hot wax to make a wax replica of the queen for my SOLID silver chess set - lost wax casting

Brass casting worm gear

After damaging some cast iron worm gears, I decided to try to remake them in brass. Here's the process I used, which entails creating the mold for the gears, casting them from brass, machining them to fit roughly, and wearing them in.

The result is a gutsy little gearbox I can use in one of my future projects.

Music credits:
Emancipator - Old Devil
Airdance - Tamlin/Devil in the Haystack
CAKE - Arco Arena
The Black Keys - Gold on the Ceiling

Investment Casting using 3D printed model

A demonstration of Investment Casting using a 3D printed model. The printer was a Wanhao D7 using Senertek Castable Resin. This demonstration was done at The MakerBarn in Magnolia, Texas.

Professional Lost Wax Casting From Start To Finish

In this video, Professor John Ahr of the Online Jewelry Academy takes viewers on a field trip to Monte Christo Trade Corp. in Los Angeles, CA. Alice, our guide, takes us on a tour through the factory to see how a wax model is transformed into a wearable jewelry item.
Viewers will get to see every step taken in a professional manufacturing environment to cast a piece of jewelry. Plus, they'll see how a ring is expertly finished by an experienced craftsman.

If you like this video there are many more like it included in the Online Jewelry Academy's playlist. You can find the OJA's videos organized by category on our website at:

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Aluminum Casting - Lost PLA Process on Plaster Mold

Support @ Patreon:
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The video don't have any comment, but all the steps are here described:
-PLA 3D printed part
-Wax risers and gating
-50%wt Sand + 50%wt Plaster
-Oven 100ºC 2h to dry the plaster (not enough)
-Oven 240ºC 2h to remove residual water (not enough)
-Burn PLA (Direct flame damaged the mold...)
-Mold assembling
-Aluminum Casting and pouring

Casting Result:
The part has some defects due mold damaging and water vapor.
The mold was not completely fulfilled, the last part of the movie show that the mold was not completely dried.

Next Steps:
-Improve mold drying process
-Apply heat instead of direct flame to remove PLA.

Lost wax casting with zinc

Making a zinc figurine using the lost wax casting method

Casting Brass at Home

This is a video in which I make a brass house sign. It’s based on earlier casting videos, with refinements to the process shown as the video progresses. Needless to say, the video makes the process look far slicker than real life. I’ve not shown the enormous pile of failed 3D prints, the innumerable goes at making the sand mold before giving up and increasing the draft on the playing card symbols and reprinting again (7° and 2 mm deep seemed to work) , the ensuing sulk on my part when my wife said the corners should be round (she was right – reprinting again!), the cast that didn't flow, and lastly we won’t even mention the multiple attempts at painting and then stripping it off again (gloss looked awful, B&Q silk peeled straight off because I didn’t use an undercoat, and the disastrous B&Q all in one primer and top coat that sprayed huge globs of paint all over it!). Still, got there in the end!

The usual warnings apply. If you have a go at this then it’s probably best to get the refractory wool that isn’t carcinogenic, don’t breathe the zinc fumes, don’t spill molten metal all over yourself, don’t blow yourself up with propane, don’t set fire to yourself, and above all stay safe, do your research, and use common sense!



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