Fund a hardware gadget dream in Madrid without equity

Many people think the only way to raise money is to sell part of what they build or to borrow. On cohero, backings are gifts. You keep full ownership of your hardware gadget dream and everything it becomes.

A hardware gadget moves from a promising prototype to parts that fit, assemble and survive testing. Make tooling and production decisions depend on documented design checks, not renders alone.

  1. 01

    Gifts, not investments

    A backing is a voluntary gift towards a goal. Nothing is sold, no ownership changes hands and no return is promised. Backers support a person; you keep control.

  2. 02

    Why milestones still matter

    Without contracts, Backers rely on transparency. Money is held per milestone and released only when you prove progress, so they can give with confidence.

  3. 03

    What you owe Backers

    Honesty: a true story, proof for each milestone and updates in chat. Not profits or repayment. If you cannot finish, unreleased money goes back to Backers.

How Backers are protected

14-day review per milestone

When proof is posted, each Backer has 14 days to release their share or ask for more. Money not released in time goes back to the Backer.

15% fee, deducted — never added

Backers pay exactly what they choose. The 15% fee comes out of each backing: €100 gives the Dreamer €85. The fee is kept if money is returned.

Gifts, not shares

Backings are gifts. No shares, equity, interest or repayment, and Dreamers keep full ownership. Nothing on cohero is an investment or a loan.

Example milestone plan

An example plan for a hardware gadget dream with a goal of €45,000. Backers fund the whole goal, but each milestone's money stays held until you post the proof and Backers release it.

  1. Milestone 1

    €9,000 · 20%

    Prove the key function

    Post a bench demonstration, a component shortlist and measured results showing the gadget’s main function in a basic prototype.

  2. Milestone 2

    €11,250 · 25%

    Refine the physical design

    Share enclosure drawings, revised circuit photos and assembly notes showing fit checks and changes from the first prototype.

  3. Milestone 3

    €18,000 · 40%

    Build the pilot batch

    Upload pilot unit photos, supplier invoices and a build record tracking assembly issues and component substitutions.

  4. Milestone 4

    €6,750 · 15%

    Complete reliability checks

    Post test logs, inspection photos and final assembly instructions with a summary of unresolved limits and planned support.

Budget example

A typical cost split for a hardware gadget dream in Madrid, shown in EUR. Backers are charged the equivalent in US dollars.

Example goal

€45,000

  • Design and prototype iterations€11,250 · 25%
  • Components tooling and pilot production€20,250 · 45%
  • Testing and design verification€9,000 · 20%
  • Packaging and support preparation€4,500 · 10%

What you receive

Backers give
€45,000
Platform fee (15%)
−€6,750
You receive
€38,250

Risks to plan for

  • R1

    Parts become unavailable

    A chosen component may disappear before the pilot build. Record suitable alternatives during design work and leave budget for checking substitutions before ordering a batch.

  • R2

    Enclosure fit problems

    A circuit that works on a bench may not fit its case or connectors. Use the second milestone for physical fit checks before committing the largest share to pilot production.

  • R3

    Pilot units fail testing

    Repeated use may expose faults absent from a single demonstration. Define reliability checks before the pilot build and retain testing budget for inspection and redesign work.

Questions and answers

Can I raise support before I know the final unit design?

Show the function you have demonstrated and the design questions still open. Separate prototype refinement from pilot production so Backers can review fit checks before the largest manufacturing commitment.

Is a pilot batch the same as being ready for mass production?

No. A pilot batch helps reveal assembly problems, component issues and testing needs at a limited scale. State its intended size and evidence clearly without presenting it as proof that larger production is ready.

Do I have to pay Backers back?

No. Money released for completed milestones is yours. Money still held for unfinished milestones can go back to Backers under the Backing Policy, minus the platform fee.

Ready when you are

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