Calculate Thrown Clay Dimensions to Hit Target Fired Sizes
Clay shrinks from wet wheel to final glaze firing, and dividing by one minus shrinkage is not the same as adding that percentage back. Compute the exact wet throwing dimension and check that it fits inside your kiln shelf clearance.
1 · vessel piece | target fired size mm | clay body shrinkage percent
FIRST-LOAD
Input is processed locally and a draft is saved automatically in this browser profile when storage is available. Reset to sample clears that draft; Pro history has its own clear button. A state link encodes your inputs in its URL: share only non-sensitive rows. Browser history, clipboard and anyone receiving the link may retain it. Optional AI use below leaves this device; it is not required.
Data note: Everything runs in this browser tab on the kiln firing docket: your vessel piece | target fired size mm | clay body shrinkage percent stays on this device, nothing is uploaded, and the reading is rebuilt only when you press run.
Perspective: Before: Multiplying 102 mm by 1.15 gives 117.3 mm, which shrinks to 99.7 mm and misses the target fit. After: the kiln firing docket shows the working beside each named row so the reader can change the assumption and inspect the consequence.
2 · Read the kiln firing docket
Dimensional shrinkage arithmetic from user-supplied test percentages. Not ceramic engineering or kiln-safety advice; shrinkage varies with water content, throwing compression and firing schedule.
Paid layer: kiln firing docket print and history
one-time step · the free reading above stays complete
Free tier
- one complete kiln firing docket run in the app
- three samples plus unlimited article-demo runs
- unwatermarked result text and an explicit, user-triggered state link
What $4 one-time adds
- print the kiln firing docket with its row workings
- CSV of wet thrown mm required and row explanations
- last five reading summaries saved in this browser profile
$4 once for repeated filing of the kiln firing docket, not for a better answer. Illustrative time basis: avoiding one five-minute manual reformat per saved reading; no market-price or guaranteed-savings claim.
Local history (this device)
- No saved runs yet — your first run files here.
Checkout is unavailable until a payment link is configured. The optional unlock is browser-local, profile-scoped and best-effort, not server-verified access. Clearing browser data can remove it; there is no account or cross-device recovery.
Boundary and sources
Dimensional shrinkage arithmetic from user-supplied test percentages. Not ceramic engineering or kiln-safety advice; shrinkage varies with water content, throwing compression and firing schedule.
- Method: Enter the maximum height or diameter your kiln furniture setup accommodates.
- All sample records are invented examples. The app does not fetch measurements, policies, files or personal records.
- Google’s official pricing page, fetched 2026-09-29, lists free-tier access including AI Studio. Optional formatting only; limits and availability can change. Free-tier content may be used to improve products. Never paste private records there.
Mechanism: competence-autonomy-loop
Optional AI formatting, not calculation
For this kiln firing docket, use the free AI Studio interface only if available to you, with no paid API key. Manual entry completes the same workflow for free. Supply only fictional or non-sensitive notes. Review its output against the source; never paste unresolved questions into the numeric rows.
Format my non-sensitive notes for a kiln firing docket. Return plain rows only: vessel piece | target fired size mm | clay body shrinkage percent. Preserve supplied quantities exactly. Do not guess missing values; list questions separately. Do not calculate or add advice. I will check every row before pasting into the local tool.
Accepted schema: vessel piece | target fired size mm | clay body shrinkage percent. No AI response is executed as code.