Rapid Prototyping Service Break-Even Analysis: Month 26 Target

Break-Even Metric Cards

Fixed costs $110.9K/mo Year 3 base

Contribution margin 70.5% After variable cost

Break-even revenue $157.3K/mo Cover fixed burn

Break-even timing Month 26 Model break-even

Break-Even Calculator

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against the break-even point for a rapid prototyping shop.

Lean Base Full

Monthly revenue Revenue is the pool that covers direct costs and overhead. $ Low revenue High revenue Variable expenses These are direct costs that rise as each prototype order grows. $ Low direct cost High direct cost

Money available to cover fixed costs $214,121 $248,500 revenue - $34,379 variable expenses

Margin ratio

86%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the business has to cover before profit starts. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which rapid prototyping expenses stay fixed, and which move with job volume?

Cost classification

Break-even in Month 26 only holds if shop overhead stays separate from job-level materials, machine use, and inspection work. Misclassifying variable work as fixed makes rush-job quotes look safer than they are.

Expense	Cost	Break-Even Treatment	Common Mistake
Manufacturing Facility Rent	Fixed	Use $10,000 per month as shop overhead across the planning range.	Spreading rent across too few jobs and overpricing early quotes.
Property Insurance	Fixed	Use $1,500 per month as recurring overhead, not a per-part charge.	Loading insurance into each job as if it rises with units.
Software Subscriptions	Fixed	Use $1,000 per month unless license counts change with scale.	Treating baseline design and quoting software as job-specific spend.
Resin, Filament, Titanium Powder, Steel Block, Packaging, and Shipping Supplies	Variable	Apply these to each job because material and pack-out spend moves with parts shipped.	Using one blended material rate across brackets, housings, implants, cases, and valve bodies.
Direct Operator Wages, Technician Time, CNC Operations, and Inspection QA	Variable	Treat as variable when hours are tied to specific jobs, rework, or rush production.	Calling machinists and inspection fixed when rush jobs consume real labor hours.
Utilities Electricity	Semi-variable	Start with the $3,000 monthly base, then add machine-use sensitivity as jobs increase.	Assuming power is fully fixed while printers and mills run longer shifts.
Equipment Maintenance Fixed	Semi-fixed	Use $1,500 per month until more machines or heavier utilization force a step-up.	Keeping maintenance flat after adding capacity or pushing extended production runs.
CNC Tooling Wear	Variable	Charge tooling wear to the jobs that use cutters, especially metal and rush machining work.	Hiding tool wear in overhead and underquoting small CNC batches.

How does break-even shift from a lean launch to a base ramp and then higher utilization?

Scenario table

Break-even moves fast because revenue scales faster than payroll and facility costs. The lean case still loses money, the base case lands near Month 26, and the higher-utilization case builds a clear cushion.

Planning assumptions only; actual results will move with mix, scrap, and staffing timing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch	$62,167	$8,585	$60,908	86.2%	-$233,000	Still below break-even, with fixed payroll outrunning contribution.
Base ramp	$124,250	$16,302	$94,242	86.9%	-$139,000	Month 26 is the crossover point, so losses are narrowing but not gone.
Higher-utilization case	$248,500	$30,606	$100,908	87.7%	$772,000	Above break-even, with enough contribution to absorb the fixed load.

What breaks the break-even plan for this rapid prototyping shop?

Stress test

This plan is close to break-even, but quote delays, rework, rush buys, downtime, or hiring ahead of booked work can flip it fast. A 10% revenue miss or higher overhead adds about $5k to $6k of monthly pressure, and the combined hit is worse.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$69,400	$7,400 gap	Quote flow stays tight enough to hold the base plan.
Revenue shortfall	Monthly revenue runs 10% lower, to about $55,900.	$68,600	$12,700 gap	Slower quote conversion pushes the shop further below break-even.
Fixed-cost pressure	Fixed overhead rises 10% to about $67,000 per month.	$75,500	$13,500 gap	Rent, utilities, or staffing creep makes the model less forgiving.
Margin pressure	Variable expense load rises 5 points, cutting contribution to about $50,400.	$72,500	$10,500 gap	Scrap, rework, and rush material buys eat the spread.
Combined pressure	Revenue drops 10%, fixed costs rise 10%, and contribution falls to about $50,400.	$77,500	$21,600 gap	Quote delays plus downtime and early hiring can drain cash fast.

Can you prove the order book clears break-even before you sign the lease and buy the first machines?

Founder checklist

Yes, but only if quoted demand can hold above about $71,000 a month. That means pricing, volume, staffing, and machine timing all need to work together before you lock the $10,000 rent or the core equipment spend.

1Quoted pipeline$71K/mo

Verify quoted work by part type can clear this monthly level, from $650 electronics cases to $2,500 implant prototypes, before you sign the lease.

2Fixed load$60.9K/mo

Verify rent, utilities, insurance, software, maintenance, admin, and base wages really total about $60.9K a month before materials and ad spend.

3Blend margin86.2% CM

Verify the blended contribution margin stays near 86.2% after direct costs, ads, and commissions, because a heavier CNC or titanium mix will raise break-even.

4Year 1 volume600 units

Verify the first-year plan of 600 units across five product families is realistic for machine time and labor, not just a forecast on paper.

5Capex stage$980K core

Verify the SLA printer, SLS printer, 5-axis CNC mill, and CNC lathe only come online as utilization rises, so idle capacity does not eat cash.

6Cash trough-$1.151M

Verify you can fund the Month 25 low point, because breakeven lands in Month 26 and payback stretches to 56 months.