CUSTOM LAB EQUIPMENT WITHOUT THE INSTRUMENT-COMPANY MARKUP
Every experimental lab eventually hits the same wall: the measurement or process your next paper depends on needs an instrument that doesn't exist in any catalog. A bioreactor with your specific geometry and sensing. A mechanical rig that loads samples the way your protocol demands. A jig that positions, heats, stirs, or logs something no vendor thought to build.
At that point most labs discover the market has a hole in it — and fall into one of three bad options.
The three bad options
- The instrument giants. The big vendors are excellent at their catalogs and service contracts, but a one-off custom build is not their business. If they quote at all, it starts in five figures — their overhead structure allows nothing else.
- The machine shop. Your university's shop does beautiful metal. But a modern rig is metal plus sensors, actuators, a control board, and firmware — and the shop's lathe doesn't write firmware. You end up the systems integrator of your own instrument.
- The grad student. The classic. A capable student wires an Arduino to a pile of parts, it works, papers get published — then the student graduates, and the lab inherits an undocumented rig nobody dares to touch. Every PI reading this has seen one. Many are running one right now.
The fourth option — a small engineering studio that does electronics, firmware, and mechanics as one job, documents everything, and prices for a grant line rather than a corporate procurement budget — barely exists. Almost no freelancers take these jobs, because each one needs three disciplines at once. That gap is precisely where we work.
Why custom quotes come back at five figures
Fairness requires saying: the big quotes aren't (usually) gouging. A custom instrument from a commercial vendor carries real costs — engineering hours across several disciplines, one-off design work amortized over exactly one unit, liability and warranty overhead, calibration traceability, and the sales machinery around it. If you need certified, validated, GxP-grade equipment, pay for that; it's worth it.
But most research rigs don't need any of that. They need to work, be understood, and be repairable. When a lab pays instrument-company overhead for a research-grade one-off, the extra money buys the vendor's cost structure, not better science. A leaner builder with the right skills can deliver the same function for a fraction — if they document it properly (see below).
Catalog, DIY, or custom — a 30-second test
| Situation | Right answer |
|---|---|
| A catalog instrument does 90% of what you need | Buy it. Adapt the protocol. Custom exists for the cases where adaptation breaks the science. |
| A student wants to build it, and it's scientifically interesting to build | Let them — it's training. But require documentation as a deliverable, not an afterthought. |
| The rig is critical to the lab's output for years, and nobody's career should depend on maintaining it | Have it built professionally, with docs, spares list, and source code in the lab's hands. |
| You need certified/validated equipment for regulated work | Commercial vendor. That overhead is the product. |
What a custom rig should ship with
The difference between an asset and a liability is the documentation. Whatever you commission, from anyone, require:
- Schematics and CAD source — not PDFs of them. The editable files, in your hands.
- Firmware source code, commented, with build instructions a new student can follow.
- A bill of materials with real part numbers, so a failed sensor is a $30 order, not a service call.
- An operating & maintenance writeup thorough enough to cite in a Methods section — because reviewers increasingly ask, and replication is the point.
- Calibration procedure, if the rig measures anything you'll publish.
We build open by conviction — our own products are open-source hardware — so this list isn't an upsell; it's the default deliverable.
The procurement path (use the small-purchase lane)
Here's the part that surprises people: buying a custom rig can be faster than buying a big instrument. Most US universities let a department issue a purchase order directly for purchases under a threshold — commonly $10,000 — with no competitive bidding. Between roughly $10k and $50k, you typically need two or three written quotes, but still no formal RFP. The mechanics that make it smooth:
- A fixed, itemized quote — engineering as one line, materials at documented cost — drops straight into a PO request or a grant budget justification. (Grants routinely allow equipment lines to include delivery, installation, and calibration.)
- Phase the work to fit the lane. A feasibility study (ours run $1,500–3,000) is a small purchase anywhere, and its deliverable — concept design, parts cost, fixed build quote — is exactly the document your grant budget or quote-comparison needs for the build itself.
- Vendor registration is routine. We're a US LLC and can register in university supplier portals and invoice against POs.
What it costs with us
Feasibility brief $1,500–3,000 (about two weeks: can it be built, how, concept CAD, parts cost, fixed quote for the build). Working instrument $8,000–25,000 depending on complexity, materials at cost with receipts. Fixed prices agreed before work starts; built against a written acceptance checklist — if it doesn't pass, we keep working at no extra charge. The founder is a biomedical engineer who has built programmable bioreactors and lab robots himself; your rig is designed by someone who has stood at the bench. Full pricing and guarantees are on the pricing page.
Get a quote-ready feasibility brief →
Procurement references: VCU — procurement methods & thresholds · BidFinderEDU — how university procurement works · MIT RAS — equipment in grant budgets. Founders & owners: see the companion note on what a prototype actually costs.