Pricing a 3D printed cosplay prop isn't just filament weight times a per-gram rate — it's print time, failed attempts, sanding and painting hours, and the risk of a client who wants three revisions on a Baldur's Gate helmet. Get the formula right once and you stop trading your weekends for less than minimum wage. TL;DR Price cosplay props by stacking material, machine time, post-processing labor, and a real markup — not just filament weight. A typical helmet piece running 14 print hours at $0.15/hour electricity plus 80g of PLA costs under $5 in raw materials but hours in labor. Post-processing (sanding, priming, painting) usually eats more time than the print itself — bill for it separately. Commission work needs a rush fee (20-30%) and a revision cap built into the quote before you send it. Skip flat per-inch pricing for anything with supports, multi-part assembly, or custom sculpting. Why this matters Most makers price 3D printed props by guessing at a number that "feels fair," then wonder why a 40-hour build only nets $60. Filament is cheap. A kilogram of PLA runs roughly $18 to $25, so the plastic in a prop rarely costs more than a few dollars. The real cost is time: your printer's time, your sanding and priming time, and your design time if the commission is custom. The resin 3D printing cost calculator exists because sellers kept asking the same question in different words: "why am I broke after selling a full armor set?" The answer is almost always labor and post-processing going uncounted. Fix that and the quote stops being a guess. What you'll need A scale to weigh filament or resin per print (grams, not "about half a spool") Your printer's wattage and local electricity rate per kWh A stopwatch or slicer time estimate for print duration A log of your actual post-processing time (sanding, priming, gluing, painting) for at least 3 past props A hourly rate you're willing to defend to a client A spreadsheet or calculator that separates material, machine time, and labor instead of blending them into one number The steps 1. Weigh and cost your material Weigh the exact filament or resin used per print in grams, not the whole spool. Multiply grams used by your cost per gram — a $20/kg spool works out to about $0.02/gram, so an 80g helmet visor costs roughly $1.60 in plastic. Resin runs higher, often $35-$50 per liter, which changes the math fast on large chest pieces. Common mistake: pricing off the spool price instead of grams actually consumed, which hides failed prints from the total. 2. Calculate machine time and electricity Multiply your printer's wattage (check the nameplate, typically 120-350W for FDM) by hours printed and your local electricity rate to get true power cost — usually pennies, but not zero. The bigger cost here is opportunity: a 14-hour print ties up a printer that could be running another job. Charge a per-hour machine rate ($0.50-$2/hour is common among small shops) to cover wear, nozzle replacement, and downtime. Skipping this step means a $300 printer eventually needs replacing on your dime, not the client's. 3. Log post-processing labor separately Sanding layer lines, priming, filling gaps, and painting a cosplay prop usually take 2-4x longer than the print itself. A helmet that prints in 14 hours can easily need 6-8 hours of finishing before it looks convention-ready. Track this time on your last 3 props and use the average, not a guess. The mistake here is bundling finishing time into "the print" and quoting a flat number that quietly pays you $4/hour once the paint booth hours are counted. 4. Price design and modeling time for custom commissions If a client wants a prop that doesn't exist as a file yet, modeling in something like Blender or Fusion 360 adds real hours before the printer even starts. Charge a flat design fee or an hourly modeling rate ($25-$50/hour is typical for intermediate CAD skill) separate from the print itself. Common mistake: quoting a custom design the same as a prop you already have a file for, which trains clients to expect custom work at off-the-shelf prices. 5. Add packaging and shipping into the quote Large cosplay props (helmets, chest armor, gauntlets) need custom boxing, foam, and sometimes multiple boxes for a full set — budget $8-$20 per prop depending on size, more for anything requiring a crush-proof box. Weigh the packed box, not just the prop, when calculating shipping. The packaging cost guide breaks down how to fold this into the sale price instead of eating it as an unpriced expense. 6. Set your markup and target hourly rate Add material, machine time, labor, and packaging, then apply a markup of at least 2-2.5x on materials plus a real hourly wage on labor — $20-$35/hour is a reasonable floor for skilled finishing work. If the math lands under $15/hour after every cost is counted, the price is too low, full stop. Verdict: never quote below a $20/hour effective rate on cosplay commissions — the market supports more than that for detailed painted props. 7. Build commission-specific fees into every quote Rush orders (under 3 weeks for a full set) justify a 20-30% surcharge because they bump other clients in your queue. Cap revisions at 1-2 rounds in writing before printing starts — unlimited "just one more tweak" requests are the single biggest margin killer in cosplay commission work. Common mistake: agreeing to "just a quick color change" after paint is already applied, which turns a profitable job into a loss. Pricing tools that pair with this guide Craft Calculators Lifetime Spreadsheet Vault – 140+ Pricing Tools, One Price 140+ editable pricing spreadsheets covering material, labor, and markup in one purchase. $59 Craft Price Spreadsheet Calculator - Accurate Costs for Materials & Labor Calculates cost to make, wholesale price, and retail price for general craft products. $9 Etsy & Website List Price Spreadsheet Sets your Etsy or website list price from cost inputs so nothing gets left out. $3 Troubleshooting Client balks at the price — Show the breakdown (material, machine hours, finishing labor) instead of one lump number. A line-item quote defends itself; a flat number invites haggling. A print fails halfway through — Build a failure buffer of 10-15% into material cost for anything over 10 hours, since long prints fail more often than short ones. You underestimated finishing time — Track hours on your next 3 props with a timer, not memory, then adjust your labor rate for future quotes. No clear rush fee policy — Set a standard 25% rush surcharge for turnaround under 3 weeks and state it upfront, before the client asks. Endless revision requests — Cap revisions at 2 rounds in your commission terms and charge separately for anything past that. Quoting off gut feeling — Run every prop through the same formula (material + machine time + labor + markup) so pricing stays consistent between a small visor and a full chest piece. Tools and resources The resin 3D printing cost calculator for props printed in resin rather than FDM filament A lifetime spreadsheet vault covering material, labor, and markup across 140+ pricing tools, useful once you're pricing props alongside other craft products A kitchen or postal scale accurate to 1 gram for weighing filament and resin A shared spreadsheet log of past commission hours so labor estimates stop being guesses What to do next Once the per-prop math is dialed in, the next problem is scaling it across a full commission queue without losing track of margins. The how to price 3D prints for profit guide extends this formula to general 3D printed products beyond cosplay, including bulk orders and wholesale requests. “If the math lands under $15 an hour after every cost is counted, the price is too low, full stop.”FAQ How much should I charge for a 3D printed cosplay prop? Price covers material (often $2-$10 in filament), machine time, and post-processing labor billed at $20-$35/hour, then a 2-2.5x markup on materials. A detailed helmet with paint work commonly lands between $80 and $250 depending on size and finish level. How to price cosplay props for commission work specifically? Add a design fee if the file doesn't already exist, a rush surcharge of 20-30% for turnaround under 3 weeks, and a written cap of 1-2 revision rounds. Commission pricing needs these on top of standard material and labor costs. Is resin or FDM cheaper for cosplay props? FDM filament costs less per gram (roughly $18-$25/kg versus $35-$50/liter for resin) but resin often finishes smoother, cutting sanding time. Factor both material cost and finishing labor before choosing. How much does electricity cost to print a cosplay prop? A typical FDM printer draws 120-350 watts; a 14-hour print usually costs under a dollar in electricity at average residential rates. The real cost is machine time and labor, not power. Should I charge by print time or by finished piece? Charge by the full job: material plus machine hours plus finishing labor plus markup, not print time alone. Print time is only one input and usually the smallest cost driver. What's a fair hourly rate for cosplay prop commissions? $20-$35/hour for finishing labor is a reasonable floor once material and machine time are already covered separately. Below $15/hour effective rate means the quote needs revising. How do I handle failed prints in my pricing? Build a 10-15% material buffer into quotes for prints over 10 hours, since long prints fail more often. This keeps one bad print from wiping out the margin on the whole job. Do I need a separate fee for painting cosplay props? Yes — priming, painting, and weathering usually take longer than the print and should be billed as labor hours, not folded into the base price. Track actual hours on a few props to set a realistic rate. One last thing The single biggest margin leak in cosplay commission pricing isn't filament — it's unpaid revision rounds. A prop that took 6 hours to finish and gets "just one more adjustment" three times has quietly turned a $30/hour job into an $8/hour one. Cap revisions in writing before the printer starts, every time. Related guides Craft Calculators lifetime spreadsheet vault Resin 3D printing cost calculator for miniatures 3D printing cost calculator for Etsy sellers