Make things worth keeping.
A solo design and fabrication studio based in the UK. Precision 3D printing, engineering consultation, and objects built to last.
Three ways to work together
Project management, mechanical design, and process advisory for makers, startups, and product teams.
Bring a file or an idea. I handle the rest — from prototypes to production-quality parts.
A curated range of 3D printed objects, designed and made in-house. Opening soon — join the list.
Built on process. Driven by craft.
I'm Rob — a mechanical and manufacturing process engineer turned full-time maker. RJ Design operates across design, fabrication, and consulting, with a focus on work that's made properly and built to outlast the trend cycle.
I design puzzles, mechanisms and kinetic sculptures. Everything I put out is worth keeping.
Get in touchConsulting
Design, engineering, and project advisory — drawing on a background in mechanical and manufacturing process engineering, and years of practical making experience.
Bringing structure to complex making and product development projects. Process design, milestone planning, and keeping things moving.
CAD review, design-for-manufacture feedback, and engineering sanity checks for teams building physical products.
Custom design and fabrication work. If you have something specific in mind, get in touch and we'll figure out if it's a fit.
Currently taking enquiries
Every project starts with a conversation. Whether you have a detailed brief or just an early idea, get in touch and we'll figure out whether it's a fit.
Start a conversationCommission work
Have something specific you want designed or fabricated? Send a brief — describe what you're after, what it needs to do, and any constraints.
Send a briefCustom 3D Printing
Got a file? Got an idea? I offer precision FDM printing as a service — prototypes, functional parts, display pieces, and everything in between.
Drop a message with your file, a sketch, or a description of what you need. STL, STEP, or just an idea — all welcome.
You'll get a quote covering material, time, and any finishing. Pricing varies — get in touch for an estimate.
The job is printed, checked, and photographed. Any issues are flagged before the part leaves the studio.
Posted via tracked delivery, or collection by arrangement. Packed properly — not thrown in a box.
Pricing and turnaround depend on size, material, and complexity.
Request a quotePortfolio
Hover over a series to find out more. Click to explore the full collection.
V3 Series
The current generation — refined geometry and tighter spiral control. Each piece is about finding the point where mathematical precision starts to feel organic. These are the designs I'm most satisfied with technically.
Find the full V3 Series on MakerWorld — free to download, print at home.
View on MakerWorld →V2 Series
Where things started getting interesting. The second generation pushed further into multicolour territory and more complex helical forms — the point where I realised this was going somewhere.
Find the full V2 Series on MakerWorld — free to download, print at home.
View on MakerWorld →Original Series
Where it all began. The first designs that proved the concept — simple spiral forms that turned out to resonate with a lot of people. Still some of my favourite things I've made.
Find the Original Series on MakerWorld — free to download, print at home.
View on MakerWorld →Clickers
Mechanism-first design. The satisfaction of a well-engineered click is underrated — these are pieces that reward being picked up and fidgeted with. Function and form in equal measure.
Find the Clickers series on MakerWorld — free to download, print at home.
View on MakerWorld →Lights
3D printing and light do something interesting together. These designs use the material itself to diffuse, shape, and colour the glow — the printer becomes part of the lighting design.
Find the Lights series on MakerWorld — free to download, print at home.
View on MakerWorld →Pointless Series
No function required. Sometimes the point of making something is just that it exists and looks good. These are the ones that don't pretend otherwise — and somehow that honesty makes them more interesting.
Find the Pointless Series on MakerWorld — free to download, print at home.
View on MakerWorld →Suspended Filament
Pushing the printer to do what it technically shouldn't. These designs exploit bridging and unsupported printing as the aesthetic — the limitation becomes the feature.
Find the Suspended Filament series on MakerWorld — free to download, print at home.
View on MakerWorld →Seasonal
Designs tied to a moment in the year. Made to be given, displayed briefly, and remembered. Things worth keeping, even if only for a season.
Find the Seasonal series on MakerWorld — free to download, print at home.
View on MakerWorld →Misc
The ones that don't fit anywhere else. One-offs, experiments, happy accidents — the work that happens between the series. Often the most interesting things come from here.
Find more work on MakerWorld — free to download, print at home.
View on MakerWorld →The RJ Design Shop
A curated range of 3D printed objects, designed and made in-house. Things to keep. Things to give. Built properly.
Join the list to hear when it opens.
Let's talk about what you're making.
Whether it's a printing job, a consulting conversation, or just an idea to pressure-test — the best start is a message.