Alchemy Cast

Untitled project

Parts None loaded

No model loaded. Open several STL files, or add parts one by one, to cast a multi-piece project in one pour.

Metal & price

Buy grain Alloy recipe

Spot price

Flask & casting

Flask Buy flasks

Flask type

Casting method

Pattern

Sprue base

Dome Ø (mm) Height Side height Hole Ø Stick depth

Tree results

Weigh the wax tree

Weigh the finished tree on its rubber base, then the empty base. The difference is the pattern weight, which gives the metal to melt.

Tree on base (g) Empty base (g)

Pattern density (g/cm³)

Reused metal in the melt (g)

Shrinkage & ring size

Metal shrinks as it cools, so a casting comes out a little smaller than its pattern. Scale the exported model up to make up for it.

Shrinkage for this metal (%)

Scale the exported model up by 0%

Display

Smooth normals Wireframe

Wax colour

Mouse & keys

Left-drag: rotate
Right-drag or Shift+drag: pan
Scroll: zoom
F: frame model
Edit Sprue Tree: click a piece to adjust it (E rotate, W move, S scale, Esc done)
The dashed amber cylinder is the safe zone inside the flask; the grey dome is the rubber sprue base.

3D print sprue tree:

Manually create sprue tree:

Drag STL, OBJ or 3MF files here
or click “Open model…”
Several files make a multi-piece casting in one pour

Show/hide flask 8 mm recommended wall clearance 6 mm hard minimum, risky

Show wall thickness

Your setup

Pattern material

Investment Where to buy

Units

°F + °C °F °C

Casting day, step by step

Casting day plan

Plan from

Bench set (min)

1 · Measure powder and water

Flask

Flask type

How many flasks

Water : powder

Extra for waste

2 · Mix, vacuum and pour

Method

Tips from the maker

Stones set in the pattern

Casting with stones set in the wax or resin? Pick them here.

Rules for casting with stones in place

Sources

3 · Burnout chart

Cycle

Flask temp at casting

°F

Oven start time

Suggested temperatures for your metal

4 · Kiln program

Program sheet for your controller

Your kiln controller

5 · After the pour

Safety checklist

Sources for these steps:

Burnout notes

Sources for this investment and cycle

Mixing, vacuum and burnout data are transcribed from the manufacturers' published instructions; a yellow note marks any cycle we had to read off a graph. Always check the data sheet printed on your own bag or box, since formulations and recommendations change. Flask temperature at casting depends on your metal and piece; the value above is the source's example or typical range.

Casting day plan

Castable resin Where to buy

Pattern calculator

Printing and post-processing

Investments the maker recommends

Tips from the maker

Resin sources

1 · Measure powder and water

2 · Mix, vacuum and pour

Tips from the maker

Stones set in the pattern

Sources

3 · Burnout chart

4 · Kiln program

Program sheet for your controller

5 · After the pour

Safety checklist

Burnout notes

Sources for this investment and cycle

Creating tree diagram

Rubber mold planner

Packing

Master size for shrinkage

Wax injection

Injecting and mold-making tips

Alloy calculator

Casting log

Troubleshoot a casting

Job cost and quote

Job

Materials

Amounts and prices

Your rates

Resources

Casting day plan

Castable resin Where to buy

Pattern calculator

Printing and post-processing

Investments the maker recommends

Tips from the maker

Resin sources

1 · Measure powder and water

2 · Mix, vacuum and pour

Tips from the maker

Stones set in the pattern

Sources

3 · Burnout chart

4 · Kiln program

Program sheet for your controller

5 · After the pour

Safety checklist

Burnout notes

Sources for this investment and cycle

Creating tree diagram

Rubber mold planner

Packing

Master size for shrinkage

Wax injection

Injecting and mold-making tips

Alloy calculator

Casting log

Log a cast

Troubleshoot a casting

Job cost and quote

Job

Materials

Amounts and prices

Your rates

Resources