3D Print Farm Profit Breakdown: What a 4–6 Printer Farm Actually Earns
This breakdown looks at a small farm of 4–6 FDM printers running at ~70% utilisation. We'll stack fixed and variable costs, then build a realistic monthly P&L — and show where LayerMath Pro makes the depreciation and multi-machine math painless.
Farm Snapshot (4–6 Printers)
Printers: 4–6 mid-range FDM
Utilisation: ~70% of waking hours
Target net margin: 40–55% after everything
Electricity rate (UK): £0.28/kWh
Depreciation: ~£50/month per printer
Operator labour: owner-operator at £15–£20/hr effective
Worked Monthly P&L (Example)
Numbers below assume 5 printers averaging 10 productive hours/day, 26 days/month, at an average realised revenue of ~£10/hour per machine.
| Line Item | Amount / Month | Notes |
|---|---|---|
| Gross revenue | £13,000 | 5 printers × 10h/day × 26 days × ~£10/hr |
| Filament | -£2,600 | ~20% of revenue at farm-scale pricing |
| Electricity | -£650 | 5 printers × 260h × ~250W × £0.28/kWh |
| Depreciation | -£250 | £50/month per printer (hardware spread over 3 years) |
| Maintenance/consumables | -£200 | Nozzles, beds, misc. upkeep |
| Labour | -£3,500 | Owner-operator + part-time help at effective ~£15–£18/hr |
| Overheads (rent, tools, software) | -£700 | Portion allocated to the farm |
| Net profit | ~£5,100 | ~39% net margin (low end of 40–55% target) |
Fixed vs Variable Costs
A farm's profitability hinges on treating printers like assets, not sunk costs. Depreciation (£50/month per printer in this example) plus electricity and maintenance form your fixed base. Filament and labour scale more directly with volume.
The bigger mistake most farms make is ignoring operator time. If you're running 5–6 printers and doing everything yourself, your real cost per hour is far above £0 — you just haven't put a number on it yet.
Utilisation & Realistic Revenue
70% utilisation doesn't mean 70% of the day the nozzles are hot — it means 70% of the time you intended them to be printing, useful parts are actually being made. Failed prints, setup time, and job changes erode the theoretical "24/7" fantasy quickly.
Reality for a small farm is often somewhere between £8–£12/hr realised revenue per printer. That's why tight cost control and disciplined pricing are essential if you're targeting 40–55% net margins.
Common Profit Killers
- Underpricing labour or not paying yourself at all.
- Ignoring failure rate and reprints in your cost stack.
- Running too many SKUs that require unique setups and slicer profiles.
- Carrying filament SKUs that don't move, tying up cash.
The farms that make it to year three and beyond tend to have boring, repeatable product lines and brutally honest cost accounting.
Using Tools to Keep Margins Honest
Once you're past 3–4 printers, spreadsheets start to creak. You're tracking life left on each machine, allocating overhead, and pricing batches rather than one-offs. That's exactly the point where LayerMath Pro helps keep the numbers straight.
Model Your 3D Print Farm in LayerMath Pro
Add each printer once, set depreciation and wattage, then let Pro calculate your per-hour machine cost and real margins per SKU — across the whole farm.
Try Pro Calculator →