A Scots electrician has sparked international success with his 3D printable bagpipes.
Donald Lindsay has grabbed the attention of piping enthusiasts across the globe after designing a range of traditional Scottish instruments that can be printed anywhere in the world at a fraction of the cost.
The 38-year-old, from Glasgow, has spent the last two years immersed in his musical project after first trying out a 3D printer at the city's Lighthouse.
One successful crowdfunding campaign later and Donald is now set to reveal his second generation printed pipes this weekend.
Donald Lindsay and folk musician Alasdair Roberts showcase the 3D printed Scottish smallpipes.
Twenty piping professionals from as far as America and Australia have signed up to test the prototypes over the last year, including a piper from MIT, international composers and several Scottish piping veterans.
Donald explained: "I've been making them in my loft with a 3D printer in my spare time, but the business went properly live in the summer with people from all over the world getting in touch to find out more.
"As well as building my own bagpipes, I was interested in trying to extend the range of Scottish small pipes because you can only get a certain amount of notes from them.
"A lot of the professionals I have shown them to are fascinated to see what they can do with them."
The pipes Donald has created have a greater range and more innovative adjustments than their original ancestors.
Fans can now pay to print off the kit sets onto a 3D printer wherever they are, though the bag, reeds, chanter and accessories such as drone cords are not included.
As well as the small pipes, Donald has also successfully tried his hand at the full set of traditional Highland drones and a penny whistle called the qwistle.
On average, the 3D printed smallpipes will cost between £30-£60 to produce compared to £500 for a traditional wooden set.
Donald also recently launched a composition competition, offering composers the chance to write a score for the new 3D printed pipes - with the winner getting a pair for themselves and listen to their piece be performed.
"We've already had entries in and will be judging them soon," said Donald.
"At the moment I only do this outside of work but I'm hoping as things get bigger I may be able to do even more with it."