# Blocksmith Simplified V1 Release

## Release intent

V1 is an intentionally narrow public test. It helps a hat maker create a crown
block and download the matching stand without exposing the unproven brim-block
and permanent-tool experiments. Feedback from real makers will determine what
belongs in V2.

## Included

1. A full-screen welcome that hides the workshop until the user enters.
2. Round, oval, and long-oval bases derived from the selected circumference.
3. Four approved crown families at one exact selected overall height.
4. A live representative complete-block preview.
5. Local binary STL creation with five BS-1.0 blind stand sockets.
6. A separately downloadable stand.
7. An optional low-filament fit-check for troubleshooting.
8. Local profile save/open, help, community links, and an optional tip jar.

## Not included

- Brim-block or flange creation.
- The advanced Tool Cabinet and dedicated tooling workflow.
- Mandatory printer calibration.
- Opening, bridge, or pin-slack controls.
- Accounts, uploads, analytics, or cloud geometry processing.

## Crown profile contract

| Profile | Name | Intent |
|---|---|---|
| 1 | Full dome | Broad inward curvature begins low on the wall. |
| 2 | Rounded open | A balanced dome with a generous rounded shoulder. |
| 3 | Classic open | Straighter lower walls with a traditional rounded top. |
| 4 | Shallow dome | The straightest wall and latest shoulder transition. |

Every profile uses the same selected base circumference and the same overall
base-to-top-center height. No profile has a flat cutoff cap.

## BS-1.0 stand interface

- Crown sockets: five, Ø25.4 mm, nominal depth 25.4 mm.
- Socket centers: `(0,0)`, `(±40,0)`, `(0,±40)` millimeters.
- Stand pegs: Ø24.606 mm with 23.813 mm working length.
- Recommended order: print the stand first, then the crown.

The small optional coupon includes 25.0, 25.4, and 25.8 mm openings plus a
Ø24.606 mm test pin. It is for troubleshooting a printer/material combination,
not a gate that every user must pass.

## Verification evidence

The four default review crowns export as watertight binary STL meshes with zero
degenerate triangles and zero boundary/non-manifold edges. Each is exactly
139.7 mm high in the default 5½-inch configuration. The fit-check also passes
the same mesh checks.

## Release boundary

All output is a printable engineering prototype. Actual behavior depends on
printer, material, slicer, settings, and use. V1 makes no steam, heat,
load-bearing, or production qualification claim.
