The workshop

Gears, on purpose.

The Cog Box designs small machines you can print, build and play with. Print them yourself, or have the parts posted and build them.

Made
Printed and tested here
Designs
Original
Comes as
A file, or parts by post
Try one
MT-100, free

Process

How a design gets listed

Printed and tested first.

Proven first

Every machine here was printed, tested and fixed before its file went up: EX-66, MT-100.

New designs get listed once they have been printed, tested and fixed. More are on the way.

An orange snap-fit monster truck with oversized black tires and a yellow tiller on the hood
MT-100, assembled

Principles

How we work

Three rules every design has to pass.

Original

No remixes of other people's files, and no licensed characters. Each design should make you ask how it works, then tell you.

Printed first

We print a design, check that it moves, and only then list it. A listing here means the machine already came off our bed and worked.

Visible

Pins, clips, knuckles, a tiller. The engineering stays in sight. If a part is doing work, you should be able to see it.

Next

What comes next

Once each one is proven.

More machines, once they survive the same test.

Until then, try MT-100 below, or join the list for when the next design comes off the bed.

Try one free

Print MT-100 on us.

Snap-fit monster truck, free. Name and email, then unique links for the 3MF and the build guide.

An orange snap-fit monster truck with oversized black tires and a yellow tiller on the hood

Try one free

Print MT-100 on us.

Snap-fit monster truck, free. Name and email, then unique links for the 3MF and the build guide.