Carve or Build Wax Model
1 dayCalculate casting weight with sprue allowance.
Field context
This workflow is part of 4 niche fields
Complete guide for lost wax casting — step-by-step workflow, tools, checklist, and expert tips to get started.
Calculate casting weight with sprue allowance.
Mix investment at correct powder-to-water ratio.
Calculate metal weight with 20% button allowance.
Remove sprue and finish surfaces.
Metal needed.
| Component | Allowance | Notes |
|---|---|---|
| Wax model | × density factor | From calculator |
| Sprue/button | +20% | Minimum |
| Loss | +5–10% | File/polish |
Verify all calculator inputs against physical measurements before cutting or mixing.
Compare results to known good references in lost before final assembly.
Pause immediately if tools malfunction, ventilation fails, or materials react unexpectedly.