A machine that cooks anything with a press of a button – should I patent?

Sup HN, Two years ago I've made a decision - I wanted to created something that would last 50 years. After some rejected ideas, I've came up with: "A machine that would cook anything you want with a press of a button". I came up with a design, too. 10 months of full-time work later, I had produced: 1. A design that fit into 606030cm box (252512in), so easily fittable on virtually any kitchen table 2. The machine could easily cook any soup, stew, rice dish, meat. It could cut the food, peel food, fry and boil, and having cutting and peeling meant you could easily have thrown in raw potatoes, uncut meat, some vegs and it would cut and boil anything. 3. A patent, filed in one of EU states.

I thought that I would retail the machine for 1.5k

So after I did, I decided that... I want to work on something even better, and for the last year I've been working on another project. I was a SWE before, so it was software.

Anyhow, I'm now faced with a decision to pay for the full patent - 3.5k€. I'm 20, so for me that's substantial cash. I have been full-time on payless entrepreneurship for 3 years, so that's half of what I have.

So, lads and gentlemen, technically this is a project that can easily make hundreds of millions for anyone who holds it: the mass-manufacturing price was estimated to be €450 (I really tried to optimize it), so that's 2/3 net excl tax.

But then, I'm doubtful - I have never actually manufactured the device. Plus, the latest version that was actually small needs 1-2 months of polishing. And will anybody even purchase it? From companies. Of course I had a great feedback from potential users.

I'm thinking of going to electronics companies like Bosch or similar to license, though... I don't know. It will take time, and for me, I'm working on something else.

I'm attaching the text for the patent application above. What do you think? Note: I've since redesigned the machine to be 5x smaller by removing some unnecessary components, though the patent is still valid.

There is a competitor company, thermomix.com that makes $1.9bn annually selling a device that can do 3x less than mine (can only mix automatically) and they also sell it for 1.5k. chefee.com has similar functionality, but their stuff costs $30k and takes an entire kitchen. So I'm both better and cheaper.

Cheers.