A

MakerMargin True Cost Calculator

3.85

Derivation Chain

Step 1 From Scratch (DIY/self-build) trend expansion
→
Step 2 Increase in small-batch DIY product sales

Problem

Solo makers selling handcrafted, electronics, and 3D-printed products From Scratch repeatedly sell at a loss because they cannot accurately calculate true costs. Beyond material costs, they overlook tool depreciation, electricity, 3D printer consumables, packaging and shipping, Platform fees, and labor (hourly rate equivalent) — unknowingly continuing to sell negative-margin products with implicit monthly losses of 300,000-800,000 KRW (~$225-$600).

Solution

Enter a product BOM to automatically calculate hidden costs beyond materials (tool depreciation, electricity, printer consumables, packaging/shipping, Platform fees, hourly labor costs) and receive true cost figures with recommended selling prices. Also provides break-even point analysis and margin simulations by order volume.

Target: Handcraft, electronics, and 3D printing makers ages 20-40; sellers on Smart Store/Idus
Revenue Model: Premium SaaS at 19,000 KRW (~$14)/month per account (unlimited product registrations), Free Plan limited to 3 products.
Ecosystem Role: Infrastructure
MVP Estimate: 2_weeks

NUMR-V Scores

N Novelty
2.0/5
U Urgency
4.0/5
M Market
3.0/5
R Realizability
5.0/5
V Validation
4.0/5
NUMR-V Scoring System
N Novelty1-5How uncommon the service is in market context.
U Urgency1-5How urgently users need this problem solved now.
M Market1-5Market size and growth potential from proxy indicators.
R Realizability1-5Buildability for a small team with realistic constraints.
V Validation1-5Validation signal quality from competition and demand data.
Each dimension is scored 1-5 and weighted into grade S/A/B/C/D.
SaaS N=.15 U=.20 M=.15 R=.30 V=.20 Senior N=.25 U=.25 M=.05 R=.30 V=.15

Feasibility (75%)

Tech Complexity
32.0/40
Data Availability
23.1/25
MVP Timeline
20.0/20
API Bonus
0.0/15
Feasibility Breakdown
Tech Complexity/ 40Difficulty of core implementation stack.
Data Availability/ 25Practical availability and cost of required data.
MVP Timeline/ 20Expected time to ship a usable MVP.
API Bonus/ 15Bonus for viable public API leverage.
Total 100 points; below 50% is filtered out.

Market Validation (56/100)

Competition
8.0/20
Market Demand
6.2/20
Timing
14.0/20
Revenue Signals
7.5/15
Pick-Axe Fit
10.5/15
Solo Buildability
10.0/10
Validation Breakdown
Competition/ 20Signal quality from competitor landscape.
Market Demand/ 20Demand proxies from search and mention patterns.
Timing/ 20Fit with current shifts in tech, behavior, and regulation.
Revenue Signals/ 15Reference evidence for monetization viability.
Pick-Axe Fit/ 15How well the concept serves participants in a trend.
Solo Buildability/ 10Practicality for lean-team implementation.
Total 100 points; below 50 is filtered out.

Technical Requirements

Frontend [medium] Backend [low]
Dashboard