The numbers
| Sells for | $10 to $16 |
|---|---|
| Print time | 1.5 to 2.2 h |
| Filament | 30 to 45 g |
| Cost per item | $4.74 |
| Marketplace fees | $1.69 |
| Left per sale | $6.58 |
| Per print hour | $3.56 |
| Demand (niche) | Medium |
| Competition | Medium |
| 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 Shop vac and dust collection adapters. An idea to test can score 69 at most until someone has seen it for sale.
Why it can work
- Low brand or licence risk if the design is your own
Why it might fail
- Thin public evidence, so treat these numbers with care
Be aware before you sell
Designing your own adapter from measured port sizes avoids file licence questions, otherwise check the terms of each MakerWorld or STL finder file. Tool brands such as Ridgid, DeWalt and Festool should appear only as compatibility statements, not as product branding. 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 |
|---|---|---|---|
| diamond art tools | 10 | $162 | 578 |
| paper tool | 6 | $31 | 1,264 |
| pottery tools | 6 | $62 | 211 |
| hatters tools | 5 | $99 | 92 |
| tool organizer | 5 | $49 | 356 |
| dust collection | 4 | $120 | 225 |
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