The numbers
| Sells for | $8 to $18 |
|---|---|
| Print time | 0.4 to 1 h |
| Filament | 8 to 18 g |
| Cost per item | $3.97 |
| Marketplace fees | $1.69 |
| Left per sale | $7.34 |
| Per print hour | $10.49 |
| Demand (niche) | Medium |
| Competition | High |
| Legal and licence risk | Low |
| Evidence | Idea to test |
Estimates for one item at the middle of the price range, after filament, power, machine wear, marketplace fees and your time at $15 an hour. Shipping not included. Not sales data.
How the score adds up
Demand and legal risk come from the niche Bike computer and light mounts. An idea to test can score 69 at most until someone has seen it for sale.
Why it can work
- Estimated $10.49 profit per print hour
- Low brand or licence risk if the design is your own
- Seasonal demand: Spring and summer, my estimate
Why it might fail
- Crowded market, so prices can fall fast
- Thin public evidence, so treat these numbers with care
Be aware before you sell
Many cycling mount files are free for personal use only, so check commercial terms. Say 'Garmin compatible' and avoid logos; bike makers can protect their own bar and stem shapes. Etsy asks for your own original design, so a licensed file may not qualify.
Check your versionRun your own numbers
What Etsy shows for this
Etsy tags that match this product, with how many listings in our sample use them, their median price and views. Many listings means crowded; high views at a low price means a busy but cheap market.
| Etsy tag | Listings using it | Median price | Views / month |
|---|---|---|---|
| night light | 15 | $74 | 834 |
| ambient light | 7 | $66 | 1,263 |
| book nook light | 6 | $47 | 696 |
| light | 6 | $55 | 47 |
| epoxy night light | 5 | $118 | 1,205 |
| light and portable | 4 | $64 | 475 |
From a sample of 3,213 Etsy listings tagged as 3D printed, exported 10 and 11 November 2026 with a third-party Etsy research tool. Medians from that sample, so estimates, not sales data. All tags