Guide · Beginner · 3D Printing
3D Printing Business Basics — From Hobby to Side Hustle
This is the spine of the side-hustle maker track. Pair with 3D Printing Mastery books when you want depth on production habits. Cost model (minimum columns) LineHow to estimate Filament / resingrams used × co…
Project template
- Goal & materials
- Steps / firmware
- Troubleshooting
- AI assist notes
- Related gear & books
This is the spine of the side-hustle maker track. Pair with 3D Printing Mastery books when you want depth on production habits.
Cost model (minimum columns)
| Line | How to estimate |
|---|---|
| Filament / resin | grams used × cost/gram × (1 + waste%) |
| Machine time | hours × (electricity + amortization you choose) |
| Labor | design + finish + packing × hourly you can live with |
| Overhead | tools, failed prints, marketplace fees, shipping materials |
| Margin | not optional if this is a business |
Pricing formula (starting point)
Price = (materials + waste) + labor + overhead share + margin
If price < materials + labor, you are donating. Be honest about that.
First ten customers (practical)
- One product you can reprint without redesign each time.
- Photo that is not a lie (real part, clean background) — photo stack.
- Local: makerspace, school club, small shop fixture request.
- Online: one channel only until fulfillment is boring.
- Write a one-page runbook for reprint + pack.
When to buy another printer
- Queue regularly exceeds reliable weekly hours.
- You have measured demand, not vibes.
- Maintenance log exists — see print farm ops.
Verdict
Side hustles die from unpaid labor and untracked failures, not from lacking a fifth color of PLA. Instrument cost, then market.