Analysis
What a product costs to print, what the channel takes, and what is left — for a niche you pick or a file you upload.
The marketplace connector is only partly current
Marketplace listings: 523 of 1,059 (49%) refreshed within 7 days. The middle record is 13 days old.
42 h old · 1,059 rows · 343 ms
What are you making?
Upload the model for measured figures, or describe it and edit as you learn.
Drop an STL, 3MF or OBJ, or
The file stays in your browser. Nothing is uploaded or stored.
Scenario
Product & price
Your time
The constraint most operators actually hit.
19.0 min of hands-on work per unit. At 60 hours a month that is 189 units.
Demand
9
P50 of the Monte Carlo forecast (6–14), taking 5% of ~191 units/mo.
Summed across 20 etsy listings from 0 shops matching "Adjustable Monitor Riser". These are the vendor's monthly unit ESTIMATES, not sales records, and they cover only the listings we hold — activity in the sample, never the size of the market. Captured 2026-09-14.
Contribution / unit
$119.48
79% of revenue
Monthly operating profit
$1,048
9 units/mo · $1,070 cash
Cash payback
Month 1
on $269 of hardware
Demand-bound: you have spare capacity
You could fulfil 59 units a month and expect to sell 9. More equipment changes nothing until demand grows — the work is marketing, pricing, or a second product.
Machines could make
59
386 h available · 15% used
Hands could finish
189
60 h available · 5% used
You expect to sell
9
all of it fulfillable
binding constraint
Cumulative cash
24 months, hardware paid up frontCash, not profit. The printer left the account on day one rather than in equal monthly slices, so this starts in a hole that operating profit never shows.
Unit economics
Where each $151 of revenue goes. Gross margin is what is left after making it; contribution margin is what is left after selling it too.
Cost to make
Cost to sell
Includes $2.49 of hardware, written off over 9 units a month — the units this scenario actually makes, not the ones it hopes to sell.
Return on what is scarce
Profit per unit tells you whether a product works. Profit per constrained hour tells you which product to run when you cannot run both.
per machine-hour
$17.99
per labour-hour
$367.70
per printer / mo
$1,048
break-even
1 units/mo
At this volume the break-even list price is $16.85 — you are pricing $131.48 above it.
If it goes worse than planned
The two things that actually slip: prints failing more often than hoped, and finishing taking longer than it did on the first one.
Downside
$1,034
Failures and finishing time both half again as bad
9 units/mo · demand-bound
Base
$1,048
Your assumptions as entered
9 units/mo · demand-bound
Upside
$1,054
Failures a third lower, finishing a fifth faster
9 units/mo · demand-bound
Does another printer earn its keep?
| Printers | Units/mo | Operating profit | Change | Verdict |
|---|---|---|---|---|
| 9 | $1,048 | — | The first machine is the business. | |
| 9 | $1,021 | -$27 | You already make more than you can sell. Another printer adds cost and no revenue. | |
| 9 | $993 | -$27 | You already make more than you can sell. Another printer adds cost and no revenue. | |
| 9 | $966 | -$27 | You already make more than you can sell. Another printer adds cost and no revenue. | |
| 9 | $938 | -$27 | You already make more than you can sell. Another printer adds cost and no revenue. | |
| 9 | $911 | -$27 | You already make more than you can sell. Another printer adds cost and no revenue. |
Fleet sizing
1
Printer to fulfill expected demand (9 units/mo, P50)
1
recommended — expected demand already includes headroom for downtime at this size
6–14
forecast demand range, units/mo (P10–P90)
Monte Carlo · 10,000 draws · lognormal demand (σ 35%) · seeded. Same inputs always produce the same result.
What each additional printer adds
P50 marginal monthly netBars flatten once capacity passes demand — extra machines past that point add cost, not revenue.
Fleet scenarios
click a row for the full distribution| Printers | Capacity/mo | Service level | Monthly net (P10–P90) | Marginal payback | Verdict |
|---|---|---|---|---|---|
| 1rec | 53 | 100% | $1,069($672.4–$1.7K) | — | recommended |
| 2 | 106 | 100% | $1,064($667.4–$1.7K) | never | diminishing returns |
| 3 | 159 | 100% | $1,059($662.4–$1.7K) | never | diminishing returns |
| 4 | 189 | 100% | $1,054($657.4–$1.7K) | never | diminishing returns |
Drop an STL, 3MF or OBJ file here, or
STL, 3MF and OBJ. A 3MF project exported straight from Bambu Studio, Orca or PrusaSlicer works as-is.
Your file is analyzed entirely in your browser — it is never uploaded to us or stored anywhere.
What this does
- • Measures real volume, bounding box, and surface area from the mesh itself.
- • Generates print settings tuned to your machine and what you are optimizing for.
- • Estimates grams, print time, and cost per part — then runs the full business forecast.
- • Exports a profile you can import into Bambu Studio or OrcaSlicer.