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Manufacturing · head to head

Protolabs vs Samotics

Protolabs logo

Protolabs

Manufacturing

Instant online quoting for machined, moulded, printed and sheet metal parts

From
On request
Rated
-
Full reviewWebsite
Samotics logo

Samotics

Manufacturing

Condition monitoring of motor-driven assets using electrical signature analysis from the motor control cabinet

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Protolabs this is a manufacturing service, not software you licence, so comparing it with CAD or MES tools is a category error; the platform is free because the margin is in the parts.; Samotics sAM4 only sees what reaches the motor electrically, so it covers the driven train and misses un-driven equipment, structures, process conditions and anything downstream of a mechanical decoupling.
  • They diverge on capability: Protolabs covers Instant CAD quoting, Samotics covers Electrical signature analysis.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Protolabs and Samotics actually diverge.

Attributes where Protolabs and Samotics differ
AttributeProtolabsSamotics
PlatformsWeb, Cloud, APIWeb, Cloud

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Manufacturing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Protolabs

  • Instant CAD quoting
  • Automated DFM feedback
  • CNC machining
  • Injection moulding
  • Industrial 3D printing
  • Sheet metal fabrication
  • Protolabs Network
  • Account tooling

Only in Samotics

  • Electrical signature analysis
  • Switchroom installation
  • Energy and efficiency measurement
  • Submersible and hazardous area coverage
  • Fault classification
  • Fleet view

What people use each for

The jobs each tool is most often brought in to do.

Protolabs

  • A product team needing five machined aluminium prototypes in hand this week to unblock a design reviewnot Samotics
  • A startup bridging to volume with an aluminium injection mould before committing to hardened production toolingnot Samotics
  • An engineer wanting manufacturability feedback on a part before sending it to an internal machine shopnot Samotics
  • A maintenance team ordering a one-off sheet metal bracket without opening a supplier accountnot Samotics

Samotics

  • A water utility monitoring submersible and borehole pumps that no vibration sensor can be fitted to without lifting the pumpnot Protolabs
  • A chemical plant with assets in ATEX zones where certifying and maintaining in-field sensors is more expensive than the monitoring itselfnot Protolabs
  • A food plant that wants pump and mixer condition data without opening guarding or taking a hygiene-critical line down to fit sensorsnot Protolabs
  • A site building an energy reduction case, where measured motor efficiency and waste give the business case a payback that reliability alone would notnot Protolabs

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Protolabs

  • This is a manufacturing service, not software you licence, so comparing it with CAD or MES tools is a category error; the platform is free because the margin is in the parts.
  • Unit prices are well above a conventional job shop at volume, and past a few thousand parts a traditional supplier or an offshore moulder will beat it substantially.
  • The instant quoting engine only handles geometry it can analyse automatically; complex parts, unusual features or tight tolerances fall out to a manual quote and lose the speed advantage that justified the premium.
  • Material, finish and tolerance options are constrained to what the automated process supports, so designs needing a specific alloy temper or an unusual surface treatment are pushed to Protolabs Network and lose the one-day lead time.
  • Protolabs Network parts are made by third-party partners rather than in Protolabs own factories, so quality consistency and communication depend on which partner is allocated, and the buyer does not choose.

Samotics

  • SAM4 only sees what reaches the motor electrically, so it covers the driven train and misses un-driven equipment, structures, process conditions and anything downstream of a mechanical decoupling.
  • Each monitored motor needs hardware installed in the motor control centre by a qualified electrician, and in older switchrooms that installation, including any required outage, can cost more than a year of the subscription.
  • Per-asset subscription pricing means the cost scales linearly with the number of motors, so a plant with a thousand small motors faces a bill that a fixed-price plant-wide vibration system would not impose.
  • Electrical signature analysis on variable-speed drives is harder than on direct-on-line motors, and results vary with drive type, so a heavily VSD estate should insist on a pilot on its own drives before committing.
  • Nothing is published on price, contract length or minimum deployment size, and the vendor sells multi-year subscriptions, so early exit terms are a negotiation you have to raise yourself.

Pricing, plan by plan

Protolabs

On request
  • Protolabs parts$undefined/month
    • The quoting platform itself is free to use with no subscription
    • Parts are priced per order from geometry, material, quantity and lead time
    • No minimum order quantity, including on injection moulding

Samotics

On request
  • SAM4$undefined/year
    • Subscription priced per monitored asset
    • SAM4 sensor hardware required in each motor control centre
    • Electrical installation by a qualified electrician, quoted separately

Which should you pick?

Choose Protolabs if

  • You need instant cad quoting.
  • You work on Web, Cloud, API.
  • You also want automated dfm feedback.
Protolabs review

Choose Samotics if

  • You need electrical signature analysis.
  • You work on Web, Cloud.
  • You also want switchroom installation.
Samotics review

Questions people ask

Is Protolabs or Samotics better?
Neither clearly leads. Protolabs starts at On request and Samotics at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Protolabs or Samotics?
Protolabs starts at On request and Samotics at On request.
Does Protolabs or Samotics run on more platforms?
Protolabs runs on Web, Cloud, API. Samotics runs on Web, Cloud.
What is Protolabs best used for?
Protolabs is most often used for a product team needing five machined aluminium prototypes in hand this week to unblock a design review, a startup bridging to volume with an aluminium injection mould before committing to hardened production tooling, an engineer wanting manufacturability feedback on a part before sending it to an internal machine shop, a maintenance team ordering a one-off sheet metal bracket without opening a supplier account. Of those, a product team needing five machined aluminium prototypes in hand this week to unblock a design review and a startup bridging to volume with an aluminium injection mould before committing to hardened production tooling are not what Samotics is typically brought in for.
What can Protolabs do that Samotics cannot?
Protolabs covers Instant CAD quoting, Automated DFM feedback, CNC machining, Injection moulding. Samotics covers Electrical signature analysis, Switchroom installation, Energy and efficiency measurement, Submersible and hazardous area coverage.

Answered from the vendors’ own pages

Protolabs: Is Protolabs software or a service?

A service. The online quoting platform is free software wrapped around a parts business; you cannot licence the platform on its own.

Samotics: Does Samotics replace vibration monitoring?

For motor-driven assets it often does, and it reaches assets vibration cannot. For un-driven equipment and structures it does not apply at all.

Protolabs: What does the quoting platform cost?

Nothing. You pay only for parts you order.

Samotics: Do I have to buy Samotics hardware?

Yes. SAM4 requires the vendor's sensors fitted in the motor control centre; there is no software-only option.

Protolabs: Is there a minimum order?

No minimum order quantity, including injection moulding, where a single-cavity aluminium tool can produce a handful of parts.

Samotics: Does it work on variable-speed drives?

It can, but performance depends on the drive and the operating profile. Pilot it on your own VSD assets rather than accepting a reference from a direct-on-line site.

Protolabs: When should I stop using Protolabs?

Once volumes are stable and in the thousands. At that point hard tooling with a conventional moulder or a job shop is materially cheaper per part.

Samotics: How is it priced?

Subscription per monitored asset, quoted, typically on a multi-year term, with hardware and electrical installation on top.

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