Buy a 3D Printer vs Print Service: Break-Even Calculator

Buying a 3D printer is cheaper once the total grams you print pass the break-even point: the printer price divided by the per-gram cost difference between the service and printing yourself. Example: a Rp5 million printer, Rp300 thousand/kg filament, and a Rp5 thousand/gram service → break-even around 1,064 grams. If you print 1,000 grams per month, the investment pays back in a matter of weeks. The calculator above computes the exact figure from your own data.

The basic formula: BEP (grams) = fixed cost ÷ (service cost per gram − own cost per gram). Fixed cost = printer price + accessories. Own cost per gram = filament (including waste) + electricity + maintenance + the value of your time. Service cost per gram = the service rate + shipping divided by grams per order. This calculator uses the same formula, then converts it to a month estimate based on your print volume.

The five most commonly forgotten: (1) electricity — a 150-watt printer running 8 hours a day adds to your PLN bill; (2) failed prints and support/waste — a normal 10–20% of filament; (3) maintenance — nozzles, PTFE tubes, and bed sheets are consumables; (4) your time for setup, troubleshooting, and post-processing; (5) initial accessories like a filament dryer or enclosure. All of these are inputs in the calculator so the result isn't overly optimistic.

Outsourcing still wins when: you print rarely (break-even only reached after 2–3 years or never), you need exotic materials like PEEK, PEI, or metal that require an industrial printer, you need high-precision SLA/resin quality without maintaining a resin printer, you lack adequate space or ventilation, or you need fast results without learning troubleshooting. The calculator warns you automatically when your scenario falls into these conditions.

The typical range for standard FDM PLA services on Indonesian marketplaces is around Rp3 thousand–Rp8 thousand per gram, depending on part size, complexity, and layer height. Resin/SLA and engineering materials (ABS, nylon, PETG-CF) can run into the tens of thousands per gram. Always get a quote for your specific model, then enter the exact figure into the calculator — the service rate is the variable that most determines the outcome.

Check the power class on your electricity bill. Non-subsidized rate ranges: R-1 900 VA around Rp1,352/kWh, R-1 1,300–2,200 VA around Rp1,444.70/kWh, and R-2/R-3 around Rp1,699.53/kWh. Enter the figure matching your bill; the calculator's sensitivity table shows how much the electricity rate affects the break-even point.

Yes, significantly: a secondhand printer lowers the fixed cost (printer price), so break-even is reached sooner. Enter the secondhand purchase price in the printer price field, but raise the maintenance-per-100-hours estimate slightly since components wear out faster. Conversely, a new printer under warranty can use a lower maintenance estimate.

At that volume, outsourcing almost always wins: a Rp5 million break-even with Rp4,700/gram in savings needs 1,064 grams, which at 100 grams/month means almost 11 months — and that's before counting electricity, maintenance, and troubleshooting time. The exception is if you genuinely want to learn 3D printing as a hobby; treat the cost difference as tuition.

Yes, through the “time value per hour” and “labor minutes per 100 grams” inputs. The first weeks usually need bed leveling, calibration, and reprints of failed prints. If your time is worth Rp50 thousand/hour and each 100 grams needs 30 minutes of setup plus post-processing, that adds Rp250/gram — enough to shift the break-even point. Enter zero if you treat it as a hobby with no time cost.

Yes, and it's a commonly used strategy: a cheap FDM printer (Rp2–3 million) for fast design iterations and everyday functional parts, then a print service for exotic materials, large sizes, or SLA-quality finishes. To evaluate a hybrid approach, run the calculator twice — once with the cheap printer and prototyping volume, once with the specialty-material service rate — then add up the totals.