An engineer from Canada showed off his newly created, working lightsaber in his YouTube video.

James Hobson, a qualified mechanical engineer and YouTuber known for his online platform “The Hacksmith”, posted an explainer video on Thursday and revealed how his team built the world’s first lightsaber.

His design of the iconic weapon in the fictional Star Wars universe is by far the closest model, with a retractable plasma “beam” of flame that burns at 4000 degrees that slices through thick pieces of metal easily.

The model weapon is powered by propane-filled portable bag pack, which is connected to a hilt designed similar to the ones used in films.

In the video, which has garnered more than 9 million views, Hobson explained the science behind his design.

“Well, theories say that plasma is best held in a beam by a magnetic field, which, scientifically, checks out,” he said.

“The issue is producing a strong enough electro-magnetic field to contain a blade, well the lightsaber would have to be quite literally built inside a box coated in electromagnets, which turns it into a kind of useless science project.”

For this reason, Hobson and his staff, Dave Bonhoff, Ian Hillier and Darryl Sherk, chose propane as an alternative fuel.

“We need a large array of laminar flow nozzles to create highly concentrated flow of gas to create a plasma beam,” explained Hobson.

Therefore, with planning, fine-tuning, and careful tests, they were able to produce plasma jet that has the same length and diameter as that of a lightsaber beam.

What really sets his model apart is its ability to cut through tough materials, including steel sheets.

The beam’s color can also be changed with the introduction of some salts, making it much more similar than that showcased on the movie franchise.

“They look like a lightsaber, they sound like a lightsaber and at temperatures of over 3000F, they actually cut stuff like a lightsaber.”