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Add cost/time estimate card to job detail page

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app/estimation.py:
  - 20% infill → material volume → weight (density per material)
  - print time at 20 g/h (conservative FDM average)
  - filament cost at FILAMENT_PRICE_PER_KG EUR/kg (env, default 15)
  - +20% misprint buffer, +30% gross profit margin
  - net price (ex. VAT) and gross price (VAT_RATE %, env, default 19)

Card shows three columns: Material & Time / Production cost / Suggested price.
Only rendered when STL volume is available. Assumptions shown in card header.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Martin Hohenberg
2026-06-18 22:40:52 +02:00
parent 4a3c370317
commit bc6e06a2e2
4 changed files with 120 additions and 0 deletions
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60
app/templates/job_detail.html
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@@ -111,6 +111,66 @@
</div>
{# ── Estimate ── #}
{% if estimation %}
<div class="card mb-4">
<div class="card-header text-secondary small text-uppercase fw-normal" style="border-color:#21262d">
Estimate
<span class="text-secondary fw-normal ms-2" style="font-size:.7rem">
20 % infill · {{ estimation.price_per_kg }} €/kg · {{ estimation.vat_rate }}% VAT
</span>
</div>
<div class="card-body">
<div class="row g-3">
<div class="col-md-4">
<div class="text-secondary small mb-2">Material &amp; Time</div>
<table class="table table-dark table-sm mb-0" style="font-size:.875rem">
<tbody>
<tr><td class="text-secondary border-0">Volume used</td>
<td class="border-0">{{ estimation.material_ccm }} cm³</td></tr>
<tr><td class="text-secondary">Weight</td>
<td>{{ estimation.weight_g }} g</td></tr>
<tr><td class="text-secondary">Print time</td>
<td>
{% set h = (estimation.print_minutes // 60) %}
{% set m = (estimation.print_minutes % 60) %}
{% if h %}{{ h }}h {% endif %}{{ m }}min
<span class="text-secondary" style="font-size:.75rem">(est.)</span>
</td></tr>
</tbody>
</table>
</div>
<div class="col-md-4">
<div class="text-secondary small mb-2">Production cost</div>
<table class="table table-dark table-sm mb-0" style="font-size:.875rem">
<tbody>
<tr><td class="text-secondary border-0">Filament</td>
<td class="border-0">{{ "%.2f"|format(estimation.filament_cost) }} €</td></tr>
<tr><td class="text-secondary">+ 20 % misprint</td>
<td>{{ "%.2f"|format(estimation.filament_cost * 1.2) }} €</td></tr>
</tbody>
</table>
</div>
<div class="col-md-4">
<div class="text-secondary small mb-2">Suggested price</div>
<table class="table table-dark table-sm mb-0" style="font-size:.875rem">
<tbody>
<tr><td class="text-secondary border-0">Net (ex. VAT)</td>
<td class="border-0 fw-medium text-white">{{ "%.2f"|format(estimation.net_price) }} €</td></tr>
<tr><td class="text-secondary">Gross ({{ estimation.vat_rate }}% VAT)</td>
<td class="fw-medium text-white">{{ "%.2f"|format(estimation.gross_price) }} €</td></tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
{% endif %}
{# ── Log ── #}
<div class="d-flex align-items-center justify-content-between mb-3">
<h6 class="text-white mb-0">Log</h6>