Redesign logo & storefront, light subtle admin theme, and 3D print cost calculator
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@@ -653,19 +653,14 @@ class MakerWorldService
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$dimensions = is_array($design['dimensions']) ? implode(' x ', $design['dimensions']) : (string) $design['dimensions'];
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}
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// Calculate a smart suggested retail price
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// Base starting price of 9.95, + ~0.08 per gram + 1.25 per print hour
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$suggestedPrice = 14.95;
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if ($weightGrams || $printTimeHours) {
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$cost = 5.0;
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if ($weightGrams) {
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$cost += ($weightGrams * 0.07);
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}
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if ($printTimeHours) {
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$cost += ($printTimeHours * 1.50);
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}
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$suggestedPrice = round(max(9.95, $cost * 1.6), 2);
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// Calculate a smart suggested retail price using the 3D Printing Cost Calculator
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$colorCount = 1;
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if (! empty($profile['filaments']) && is_array($profile['filaments'])) {
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$colorCount = max(1, min(4, count($profile['filaments'])));
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}
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$calculator = app(PriceCalculatorService::class);
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$calcResult = $calculator->calculate($weightGrams ?: 85, $printTimeHours ?: 4.0, $colorCount);
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$suggestedPrice = $calcResult['suggested_price'];
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// Creator and MakerWorld URL
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$authorName = $design['designCreator']['name'] ?? $design['designCreator']['handle'] ?? 'MakerWorld Creator';
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@@ -0,0 +1,160 @@
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<?php
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namespace App\Services;
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use App\Models\Setting;
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class PriceCalculatorService
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{
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/**
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* Purge/waste multipliers depending on the number of AMS/filament colors.
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*/
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public const COLOR_WASTE_MULTIPLIERS = [
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1 => 1.00, // 0% extra waste for single-color
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2 => 1.15, // +15% purge tower & poop waste
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3 => 1.25, // +25% purge tower & poop waste
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4 => 1.35, // +35% purge tower & poop waste
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];
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/**
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* Material base multipliers relative to standard PLA.
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*/
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public const MATERIAL_MULTIPLIERS = [
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'pla' => 1.00,
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'petg' => 1.20,
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'silk' => 1.30,
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'tpu' => 1.40,
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];
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/**
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* Calculate comprehensive 3D printing costs and suggested retail price.
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*
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* @param float|int|null $weightGrams Model weight in grams
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* @param float|int|null $printTimeHours Printing duration in hours
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* @param int $colorCount Number of filament colors (1 to 4)
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* @param string $material Material code ('pla', 'petg', 'silk', 'tpu')
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* @param float|null $customMarkupPercent Optional override for markup percentage (e.g. 60%)
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* @return array<string, mixed> Detailed calculation breakdown
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*/
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public function calculate(
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float|int|null $weightGrams = 80,
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float|int|null $printTimeHours = 4.0,
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int $colorCount = 1,
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string $material = 'pla',
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?float $customMarkupPercent = null
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): array {
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$weight = max(1.0, (float) ($weightGrams ?: 80));
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$hours = max(0.2, (float) ($printTimeHours ?: 4.0));
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$colors = max(1, min(4, $colorCount));
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$matCode = strtolower(trim($material)) ?: 'pla';
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// 1. Settings / Rates configuration
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$filamentPriceKg = (float) Setting::get('calc_filament_price_kg', 20.00); // € 20 / kg
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$electricityPriceKwh = (float) Setting::get('calc_electricity_kwh', 0.35); // € 0.35 / kWh
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$printerWattage = (int) Setting::get('calc_printer_wattage', 150); // 150 W average Bambu Lab
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$machineHourlyRate = (float) Setting::get('calc_machine_hourly_rate', 0.50); // € 0.50 / uur afschrijving & nozzle/bed slijtage
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$handlingFlat = (float) Setting::get('calc_handling_flat', 1.50); // € 1.50 voorbereiding, supports & verpakking
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$failureRate = (float) Setting::get('calc_failure_rate', 5.0); // 5% faalkans opslag
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$markupPercent = $customMarkupPercent !== null ? $customMarkupPercent : (float) Setting::get('calc_default_markup', 65.0); // 65% winstmarge
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$vatPercent = 21.0; // 21% btw
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// 2. Multipliers
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$colorWasteMult = self::COLOR_WASTE_MULTIPLIERS[$colors] ?? 1.00;
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$matMult = self::MATERIAL_MULTIPLIERS[$matCode] ?? 1.00;
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// 3. Material cost (includes multi-color purge tower waste)
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$effectiveWeight = round($weight * $colorWasteMult, 1);
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$materialCost = ($effectiveWeight / 1000.0) * ($filamentPriceKg * $matMult);
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// 4. Electricity cost
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$kw = $printerWattage / 1000.0;
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$kwhUsed = $hours * $kw;
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$electricityCost = $kwhUsed * $electricityPriceKwh;
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// 5. Machine wear & depreciation
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$machineCost = $hours * $machineHourlyRate;
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// 6. Multi-color handling fee (extra setup for loading AMS spools)
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$colorHandlingCost = max(0, $colors - 1) * 0.50;
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// 7. Handling / labor
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$handlingCost = $handlingFlat + $colorHandlingCost;
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// 8. Direct production cost
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$subtotalCost = $materialCost + $electricityCost + $machineCost + $handlingCost;
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// 9. Failure rate risk buffer
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$failureCost = $subtotalCost * ($failureRate / 100.0);
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// 10. Net cost price (direct production cost + risk)
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$totalCostPrice = $subtotalCost + $failureCost;
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// 11. Margin & Retail price excl. VAT
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$profitAmount = $totalCostPrice * ($markupPercent / 100.0);
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$priceExclVat = $totalCostPrice + $profitAmount;
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// 12. VAT (21%) & Consumer price
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$vatAmount = $priceExclVat * ($vatPercent / 100.0);
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$consumerPriceExact = $priceExclVat + $vatAmount;
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// 13. Smart commercial rounding (.95 / .50)
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$suggestedRetailPrice = $this->smartRound($consumerPriceExact);
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return [
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'inputs' => [
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'weight_grams' => $weight,
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'print_time_hours' => $hours,
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'color_count' => $colors,
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'material' => $matCode,
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'markup_percent' => $markupPercent,
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],
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'rates' => [
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'filament_price_kg' => $filamentPriceKg,
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'electricity_price_kwh' => $electricityPriceKwh,
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'machine_hourly_rate' => $machineHourlyRate,
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'handling_flat' => $handlingFlat,
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'failure_rate_percent' => $failureRate,
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],
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'breakdown' => [
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'effective_weight_grams' => $effectiveWeight,
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'purge_waste_grams' => round($effectiveWeight - $weight, 1),
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'material_cost' => round($materialCost, 2),
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'electricity_cost' => round($electricityCost, 2),
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'machine_cost' => round($machineCost, 2),
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'handling_cost' => round($handlingCost, 2),
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'failure_cost' => round($failureCost, 2),
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'total_cost_price' => round($totalCostPrice, 2),
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'profit_amount' => round($profitAmount, 2),
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'price_excl_vat' => round($priceExclVat, 2),
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'vat_amount' => round($vatAmount, 2),
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'price_incl_vat_exact' => round($consumerPriceExact, 2),
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],
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'suggested_price' => $suggestedRetailPrice,
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'suggested_price_formatted' => '€ '.number_format($suggestedRetailPrice, 2, ',', '.'),
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];
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}
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/**
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* Smart commercial rounding to appealing .95 or .50 price points.
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*/
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protected function smartRound(float $rawPrice): float
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{
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// Enforce minimum price of 6.95
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if ($rawPrice <= 7.00) {
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return 6.95;
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}
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$floor = floor($rawPrice);
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$fraction = $rawPrice - $floor;
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if ($fraction <= 0.25) {
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$rounded = $floor - 0.05; // e.g. 14.10 -> 13.95 or 14.00 -> 13.95, but keep at least floor
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return max(6.95, $floor < $rawPrice ? $floor + 0.50 : $floor - 0.05);
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} elseif ($fraction <= 0.70) {
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return $floor + 0.50; // e.g. 14.40 -> 14.50
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} else {
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return $floor + 0.95; // e.g. 14.80 -> 14.95
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}
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}
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}
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