Here to help with build videos, downloads and any questions you may have




Spare Parts


Need some extra help building your kit? Our videos should help!

Telescope Instructions

Telescope Focusing

Plane Launcher Instructions

Microscope Instructions

Marble Run Instructions Part 1

Marble Run Instructions Part 2

Marble Run Tips & Tricks


Lost the original instruction sheet that came with your kit? Grab a new one here!

Telescope Instructions

Plane Launcher Instructions

Microscope Instructions

Marble Run Instructions


Wondering what ‘STEM Toys and STEAM toys for children’ means? Maybe this will help…

Q: What is a STEAM Toy? / What is a STEM Toy?
A: STEAM/STEM stands for Science Technology Engineering and Maths (the “A” is sometimes used to represent Arts). STEAM toys encourage open-ended play and trial-and-error exploration, teach problem-solving, and allow children to lead the play experience, among other attributes. If you’re interested you can read more here.

Q: I’m having some difficulties in building a kit, can you help?
A: While the kits are fairly simple to construct, there may be a couple of steps that you might struggle with. You could use this as a great opportunity for a bit of family time to share the experience and learn together. If you need extra help, click here to watch us build the kits step-by-step.

Q: I have a part that’s broken or missing, can I get a replacement?
A: You most certainly can! We hate it when that happens, so contact us directly by clicking here and we will sort out a replacement for you.

Q: Your products are made from cardboard?! Do they really work?
A: Yes they do! We use high quality card and cardboard, source the best lenses, mirrors, elastic bands and marbles, and combine with very clever cardboard mechanics to make products that really do work.

Q: In the ‘About Us’ you mentioned Bonzo the dog ate one of your telescopes. Is he okay?
A: No dogs were harmed in the making of our telescope. He also sometimes eats socks. It’s not a pleasant sight when it all comes back up!

Q: You say you’re doing your bit for the environment but I notice your kits are made in China.
A: They are made in China by our trusted printer partner who uses FSC and other sustainable/recycled cardboards. They send our finished telescopes to us on a container ship, along with other manufacturers’ products such as computers, washing machines and toys. This is more fuel efficient and better for the environment than flying them here.

Q: Do you have any other products coming?
A: Yes we do, but that would be telling! We have great plans for the future of Build Your Own, so follow us on social media to be the first to know.

If none of that has helped, click here to contact us.


We hate it when a part breaks, or your dog eats that all important locking tab! Fill in the form below and we’ll get you up and running again in no time.