Introduction
A capable motor control team takes 12 to 24 months to build and validate its first production-grade firmware. For most product companies, that motor is not the product. It moves the product. So the question is simple: should you spend two years and several engineer-years on a part of the system that your customer never sees, or buy that capability and ship sooner?
This guide answers that. We look at the three levers that decide it, risk, time-to-market, and cost, and we are honest about when outsourcing wins and when keeping motor control in-house is the right call. By the end you will know which side of the line your project sits on.
The Real Question: Is Motor Control Your Core Business?
Before you compare vendors or budgets, answer one question. Is motor control the thing that makes your product worth buying, or is it the thing that makes your product work?
If your differentiator is the motion itself, the precise torque control of a surgical tool, a proprietary drivetrain, a haptic feel no competitor can match, then motor control is core. You should probably own it. If the motor just has to spin reliably so the rest of the product can do its job, then motor control is commodity-enabling. It is necessary, but it does not win you customers.
This matters because of opportunity cost. Every engineer tuning a current loop is an engineer not working on the feature that sells the product. A small team has a fixed amount of senior talent. Spending it on field-oriented control, sensorless startup, and EMC pre-compliance is a choice to not spend it elsewhere. As a rule, put your scarce engineers where the product is unique, and buy the parts that are hard but not differentiating.
Takeaway: own the motor control that defines your product, buy the motor control that merely enables it.
The Three Levers: Risk, Time-to-Market, Cost
Most make-or-buy debates get stuck on price. Price is only one of three levers, and usually not the one that decides the project. Look at all three together.
Risk
Motor control is deceptively hard. A motor spinning on the bench at no load tells you almost nothing about how it behaves under real conditions. The risk lives in the details: field-oriented control (FOC) tuning across the full speed range, sensorless startup and low-speed estimation, EMC and EMI compliance, thermal limits, and functional safety where it applies.
Each of these can stall a project for months. Sensorless control that works at the bench can fail at zero speed under load. An EMC failure found late means a board respin and a slipped launch. If your product needs a safety certification, the motor control firmware sits inside that scope, and a weak design adds audit risk you cannot remove at the end. Outsourcing moves this technical and schedule risk to a team that has already crossed these hurdles many times.
Time-to-Market
This is often the lever that decides. Building motor control in-house from scratch is rarely a few weeks of work. It is the hiring, the toolchain, the first prototype, the long tail of validation across temperature, load, and supply variation. Teams that have not done it before routinely underestimate the validation phase, which is where the calendar slips.
A proven control platform compresses that. Instead of writing FOC and an observer, then debugging them on real hardware for months, you start from firmware that already runs and tune it to your motor. For many products that is the difference between launching this year and launching next year. In a competitive market, those months have a real revenue cost.
Cost
The sticker price of a service or a controller is the easy number. The real number is total cost of ownership. In-house motor control carries non-recurring engineering (NRE) for the first design, then ongoing maintenance: bug fixes, support for new motors, toolchain upkeep, and the cost of the one engineer who understands it leaving.
Add the opportunity cost from above. Two engineer-years spent on a control loop is two engineer-years not spent on the product. When you total NRE, maintenance, and opportunity cost over the product’s life, a service that looks expensive per unit often costs less than a team you build, staff, and keep current for years.
Takeaway: weigh risk, time, and total cost together. Price alone hides the decision.
In-House vs Outsource: Side-by-Side
Here is the trade-off in one view. No column is “good” or “bad” on its own. Each fits a different situation.
When to Keep It In-House
Outsourcing is not always right. Keep motor control in-house when one or more of these is true.
Motor control is your differentiator. If the motion is the product, owning the control loop protects what makes you unique, and no vendor should sit on that critical path. The algorithm is core IP you must own outright, with no third party in the chain. You already have a dedicated team with the skills and the bandwidth, so the build cost is lower and the risk is known. Your volumes are high enough that a small per-unit saving from a fully owned design outweighs the NRE and maintenance.
In these cases the math favors building. You are spending scarce engineering where it actually creates value, and you keep full control of the part of the system that sets you apart.
Takeaway: keep it in-house when motor control defines your product and you have the team to own it.
When to Outsource (and How to Do It Right)
Outsource when motor control is necessary but not your differentiator, when speed matters, or when you do not want to build and maintain a specialist team for one subsystem. The benefit only holds if you outsource well. A bad partner can hand back the risk you tried to remove.
Pick a partner the way you would pick any critical supplier. Check the toolchain: can you build, flash, and debug yourself, or are you locked out of your own firmware? Insist on validation on a real test bench, not just simulation, so the numbers come from measured hardware under load. Avoid lock-in: you want clear IP terms, access to your configuration, and no black box you cannot service. Confirm lifecycle support: who fixes a field issue in three years, and who adds the next motor variant?
The goal is to outsource the hard work without outsourcing your control over the product. A good partner gives you working firmware, the means to maintain it, and proof it performs, then steps back. For the hardware side of this, a customizable OEM controller lets you match form factor, I/O, and protocols to your product instead of forcing your design around a fixed board.
Pros, Cons & Trade-offs
The honest view is that both paths have a cost. Here is the balance.
How SOLO Reduces the Risk of Outsourcing
Most of the fear around outsourcing comes from losing control. SOLO is built to remove that fear. We give you clear ownership of what runs on your hardware, with full access to the toolchain so you can build, flash, and debug yourself. No black box, no lock-out from your own firmware.
We can validate on a motor test bench before anything reaches your production line, so the performance numbers come from measured hardware under real load, not a datasheet. That bench is also how we prove a design works across speed, torque, and temperature.
Conclusion
The decision comes down to one question and three levers. The question is whether motor control is your core business or just a part that has to work. The levers are risk, time-to-market, and cost, weighed together rather than on price alone. Keep motor control in-house when it is your differentiator and you have a dedicated team to own it. Outsource it when it is necessary but not what makes your product unique, and when speed and lower risk matter more than full control. If you outsource, do it right: demand toolchain access, bench-validated results, and clear IP terms so you keep control of the product. If you want a second opinion on which side your project sits, the SOLO team can review your specs and give you a straight answer.
FAQ
Is it cheaper to outsource motor control or build it in-house?
It depends on volume and on total cost, not the sticker price. In-house carries NRE, hiring, and years of maintenance, plus the opportunity cost of engineers who could be working on your product. Outsourcing has a per-unit or service cost but no team to build and keep current. For most low and medium volumes where motor control is not the differentiator, outsourcing usually costs less over the product’s life.
What are the risks of outsourcing motor control?
The main risks are lock-in and loss of visibility. A weak partner can hand you a black box you cannot service, lock you out of your own toolchain, or leave you without lifecycle support. You reduce these risks by choosing a partner who gives you toolchain access, validates on real hardware, and agrees to clear IP terms up front.
How do I choose a motor control partner?
Treat it like any critical supplier. Check that you can build, flash, and debug the firmware yourself. Require validation on a real motor test bench, not only simulation. Confirm there is no lock-in, that the IP terms are clear, and that someone will support the design over its lifecycle. A good partner gives you the result and the means to maintain it, then steps back.
When does keeping motor control in-house make more sense?
Keep it in-house when motor control is your differentiator, when the algorithm is core IP you must own outright, when you already have a dedicated team with the bandwidth, or when your volumes are high enough that a fully owned design pays back the NRE and maintenance. In those cases you are spending scarce engineering where it creates real value.
