The first prototype is designed based on the final sketch. This is an important step and also one of the most rewarding moments for an inventor, because this object will prove to them and others that their invention actually works and solves the problem they set out to address. At this stage, you don't need to worry about the design of your device, its size, or the price you originally set. The only thing that matters is that the object truly meets the need for which it was designed.

Since it's a very rudimentary object, you can make it with whatever you have on hand, so you spend as little money as possible. Don't buy any tools. Simply rent the ones you need. Investing in tools is completely unnecessary, and the time when you'll need all your money will come soon enough.

When you begin building your prototype, you'll quickly find that it's sometimes very easy to reproduce your design, even if you're not particularly handy. If, however, you encounter too much difficulty or if the technical aspects are beyond your skill level, don't hesitate to ask a more skilled friend or relative, or someone with the appropriate training, for help. Most of them will be happy to assist you and flattered to help you bring your invention to life.

It's possible that your prototype won't meet your expectations and won't fulfill all your requirements. If that's the case, you'll have to go back to the drawing board to find the ideal solution. This can be very frustrating, but it's definitely preferable to rejection from potential manufacturers or a commercial failure. In the case of my bike rack, pressed for time, I acted too quickly and had to start all over again, which isn't much better. On the other hand, if you're happy with your prototype, it's time to continue your work.

However, before taking the next step, it's important to take stock and engage in some self-reflection. The aim here, by allowing a few moments of reflection and examining the specifics of this inventor's work, is not to discourage anyone, but rather to raise awareness of the magnitude of the task awaiting those who decide to develop and market their idea. If success is achieved, there's no doubt the inventor will experience moments of joy that will make them forget the hassles of developing and producing their invention.

However, before experiencing this euphoria, one must ensure they are well-prepared to face the challenges inherent in creating a product. Therefore, before embarking on costly endeavors, it's essential to ask oneself if one still truly believes in the product one intends to bring to market. It's also crucial to accurately interpret the reactions of those one has consulted. Were their initial reactions truly what motivated you to continue your research? And if they were negative, did you choose to ignore them?

And if this creates insecurity for your partner, would they be willing to see you invest so much money without any guarantee that those sums will ever be recouped? If your self-reflection confirms that you are ready to continue, let's explore the paths you will need to take. Otherwise, it's best to try to sell your invention now, but don't expect to make a fortune.