When you can't buy the part you need
Not every problem is software. Custom drain grates, odd fittings, welded assemblies, test pieces — we design and get the physical fix built when a catalogue part will not work.
Common signs you need help
- Off-the-shelf parts almost work but need a custom size or shape
- You have a product idea stuck in sketches and supplier emails
- You need a finished one-off now — or a test piece before a bigger run
Who this is for
This is for businesses that need a physical part no catalogue sells. A drain grate for a non-standard opening, a bracket for equipment the manufacturer no longer supports, a fitting that has to survive a specific chemical or load. It is also for founders with a product idea stuck between sketches and supplier emails who need something real before the next conversation.
Where this applies
Ideas stall between CAD and a physical part — we bridge design, fabrication partners, and the software around them.
Custom parts and fabrication coordination for product-led businesses.
What the assessment covers
Clarify what "done" means for your custom part — finished build or test piece
Outline make-vs-buy and realistic timelines
Connect the physical build to any digital systems you need
What we build
Custom fittings, welded assemblies, 3D-printed enclosures, test rigs, pilot units, small-batch runs
A first physical job often looks like a one-off part fitted to measured site conditions, a welded assembly, a 3D-printed enclosure for electronics that had been living in an ice-cream container, or a test rig built to prove a mechanism before committing to tooling. Some jobs end at a single part. Others move to a small-batch run once the first one has survived a few weeks of real use.
How a build runs
Physical work is phased so each stage answers a question before you spend on the next. Material lead times are the usual variable, and we quote them honestly rather than optimistically.
Define what done meansAssessment
A finished part you install, or a test piece that answers a question? Those are very different budgets and we settle it first.
Measure and designWeek 1-2
Site measurements, a physical sample, or photographs — whatever exists. You do not need drawings to start.
First articleWeeks 2-5
One part made and fitted, including the material lead time. Most surprises surface here, which is the point.
Small batch, if it survivesAfter real use
Some jobs stop at one part. Others repeat once the first has held up for a few weeks in the actual conditions.
What it costs and how we scope it
The assessment clarifies what done means — a finished part you install, or a test piece that answers a question — because those are very different budgets. We outline make-versus-buy honestly, give realistic timelines including material lead times, and quote a fixed price. Where the job needs a specialist fabricator or machinist we coordinate that rather than marking up a middleman, and the design files are yours.
Every build starts with a Discovery & Opportunities Assessment so you know the fixed price before work begins. Take the free Operations Readiness Scorecard if you want a quick read on priorities first.
When this is the wrong fix
If a catalogue part will do the job with a minor modification, buy the catalogue part. Custom fabrication earns its cost when the alternative is a compromise that keeps failing, or when nothing on the market fits at all. For genuine volume production we are the wrong supplier — the right outcome there is a design package a manufacturer can quote from, which is work we can do, followed by a handoff.
FAQ
- Is this a good way to start with Neutrino?
- Yes. A scoped physical job is often an easy first build — clear problem, clear part, clear price — while we learn how you work.
- Do you only make prototypes?
- No. Many jobs are finished custom parts or small runs — the thing you need installed or used. We also help with test pieces when you still need to prove an idea. For volume production we help you get to a design manufacturers can quote.
- Who actually makes the part?
- Neutrino looks at the problem and scopes the build. Specialist makers and fabricators help when the job needs them — that real work is how the Ideas Network grows.
Different starting point
Have an idea but don't know how to solve it?
Maybe it's a website, a web tool, a workflow fix, or a custom physical build — you don't need the perfect brief. Tell Spark what you're trying to achieve. We'll capture it in your words and fast-track you into the same discovery call as the free quiz.
Same next step as the quiz: discovery call, Opportunities Report, then a fixed-price build quote if we're a fit.
Spark is Neutrino's assistant. It records your idea in your words — no payment to start.
Not ready to book?
Get updates and resources — no spam.
Ready to get this built?
Book a discovery call and leave the product spec for the call — or take the free quiz first if you want a quick scored check. Same look-then-build path as AI and web systems; specialist makers help when the job needs them.