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Funding explainer

Why Mosaic Raised CA$28 Million to Expand Its 3D Printing Infrastructure

Mosaic closed a CA$28 million growth round to scale production of its automated 3D printing systems in Canada. This page explains what that money actually buys on a factory floor, where the technology fits, and when a machined part is still the better answer.

12-hour quote±0.005 mm toleranceNo MOQISO 9001 / IATF 16949
CNC machining cell weighing parts made to expand its 3D printing infrastructure
What happened

What the CA$28 Million Round Actually Pays For

Mosaic Manufacturing Ltd. raised CA$28 million in growth capital. Idealist Capital of Montreal led the round, with Freycinet Ventures returning and several private family offices joining. François Boudreault of Idealist Capital sits on the board next to co-founders Mitch Debora, Derek Vogt and Chris Labelle.

The company says the money scales production of its industrial 3D printing systems, which are built in Canada. Founded in 2014, Mosaic had raised about $10 million before this round. Systems run from roughly $10,000 to $100,000.

The commercial logic is demand from manufacturers moving supply chains back to their home countries. Mosaic CEO Mitch Debora calls that trend the reason for the raise. Plants want shorter chains after pandemic and geopolitical disruption.

Spending on machines is only part of it. A printer on the floor needs fixture plates, feed systems, and post-processing. That is where machining shops get pulled into the same supply chain. Someone has to cut the aluminium plate the machine sits on.

  • 1
    Lead investorIdealist Capital, Montreal
  • 2
    Returning backerFreycinet Ventures, Toronto
  • 3
    Founded2014
  • 4
    System price band$10,000 to $100,000
Mechanism

How Automated 3D Printing Runs Without an Operator

The Array system, launched in early 2023, carries four print compartments plus a storage area that collects finished parts. A gantry moves print heads between compartments, so one machine keeps extruding while another cools or unloads.

That layout is what removes the operator from the loop. Debora gives the figure of up to 30,000 parts in 72 hours with no human supervision. Read that as a material and geometry claim, not a universal one.

The number holds for small parts that fit the build volume and print without support-heavy overhangs. A bracket 40 mm across with a flat base is a good candidate. A 300 mm duct with deep internal channels is not.

Throughput also depends on layer height and wall count. Drop layer height from 0.2 mm to 0.1 mm and print time roughly doubles. The 72-hour figure assumes a coarse layer and thin walls.

Customers add machines as needed, so capacity scales in steps rather than one large capital jump. That is the real product: a repeatable cell, not a single printer.

  • 1
    Four compartmentsPrint, cool, and unload in parallel
  • 2
    Storage areaCollects parts without stopping the run
  • 3
    Scales in stepsAdd machines as volume grows
Boundaries

Where Additive Stops and Machining Starts

Additive builds a part by adding material. Machining removes it. That single difference sets the boundary. If the geometry is internal, lattice-like, or impossible to reach with a tool, printing wins.

If the part carries a bearing, seals against an O-ring, or slides on a shaft, the surface has to be machined. As-printed walls land around Ra 8–16 μm. A sealing face usually needs Ra 0.8–1.6 μm.

Tolerance tells the same story. Our machines hold ±0.005 mm on metals. A desktop FDM printer holds roughly ±0.3 mm on a good day, and less on tall thin walls where the part warps as it cools.

Material is the third line. Mosaic systems print plastics. Metal parts still get cut, cast, or sintered. A titanium bracket for a robot arm does not come off a filament printer.

So the two processes coexist. Printing makes the housing, the jig, the cable clip. Machining makes the insert, the flange, and anything that has to hold a tolerance.

  • 1
    Print whenInternal channels, lattices, low load
  • 2
    Machine whenSealing faces, bearing fits, threads
  • 3
    Print toleranceRoughly ±0.3 mm on FDM
  • 4
    Machine tolerance±0.005 mm on metals
Economics

Nearshoring Math for a 10,000-Part Run

A resin or filament part has almost no tooling cost. A moulded part has a lot. That crossover is the whole decision. Below a few thousand units, printing usually beats injection moulding on total cost.

Above that, the mould amortises and per-part cost collapses. The exact crossover moves with part size, material, and how many surfaces need finishing. Nobody can quote it from a rule of thumb alone.

Machining sits between the two on volume. There is no mould, so setup is cheap. But every part spends spindle time, so cost falls slowly with quantity. A 10,000-part run in aluminium is rarely the cheapest route.

Nearshoring changes the freight term, not the process term. A part made 200 km away still costs what it costs to make. What shrinks is the buffer stock, the air freight, and the six-week transit.

That is why a funding round aimed at local production makes sense to buyers. Short chains cut inventory, not unit price.

  • 1
    Low volumePrint or machine, no tooling
  • 2
    High volumeInjection moulding takes over
  • 3
    Mid volumeMachining holds the middle
  • 4
    NearshoringCuts buffer stock and transit
Engineering

What to Check Before You Commit a Part to Print

Start with the load path. If the part carries a static load in compression, printed plastic is fine. If it sees fatigue, heat, or a threaded fastener, think again. Threads in printed plastic strip early.

Next, the mating faces. Anything that seals, locates, or slides needs a machined surface. You can print the body and machine only the critical face. Hybrid parts like that are common and cheap to set up.

Then the build orientation. An FDM part is weak along the layer lines. Rotate the model so the load runs in-plane, not across layers. This one change often decides whether the part survives.

Finally, inspect what matters. We run a raw material check, in-process monitoring, and a final inspection on every machined lot, with reports on request. Printed lots need their own check: wall thickness, hole diameter, flatness.

A printed prototype is still the fastest way to test fit. Just do not assume the printed version and the machined version behave the same under load.

  • 1
    Load pathKeep stress in-plane, not across layers
  • 2
    ThreadsMachine or use inserts, never print directly
  • 3
    Hybrid partsPrint the body, machine the faces
  • 4
    InspectionMeasure holes, walls, and flatness per lot
Decision aid

3D Printing vs CNC Machining: Which Process Fits

Use this when a part could go either way.

Factor3D PrintingCNC Machining
Tolerance±0.3 mm typical on FDM±0.005 mm on metals
Surface finishRa 8–16 μm as printedRa 0.2–1.6 μm after finishing
Internal channelsEasy, any shapeLimited by tool reach
MaterialsPlastics, some resinsAluminium, steel, titanium, plastics
Tooling costNoneNone, just fixtures
Setup timeHoursProduction in 24 hours
Best volumeOne to a few thousandOne to 10,000+
Threads and fitsInserts requiredCut directly in the part

The Short Version

Print the prototype and any part with internal geometry; machine anything that seals, threads, bears load, or has to hold ±0.005 mm.

FAQs

Questions Engineers Ask Next

Does the Mosaic funding change what a machine shop does?

Not the process, but the mix. When more plastic parts get printed in-house, the machined parts that remain tend to be the tight ones: inserts, flanges, sealing faces, and fixtures. Those are exactly the jobs that need 5-axis work and inspection reports.

Shops that only ran long production runs may see more small, urgent lots instead. That favors a supplier with no minimum order quantity and fast setup.

Can a printed part be machined afterward to hit tolerance?

Yes, within limits. Printing near-net and then skimming the critical faces is a common hybrid route. Leave 0.3–0.5 mm of stock on the faces you plan to cut, and design a flat datum the fixture can grab.

Watch out for heat. Printed plastic cuts soft and can smear if the spindle runs too fast. Keep the feed per tooth low and use sharp tooling.

What is the largest part we can machine?

We machine up to 4,000 mm maximum processing size, with travels of 4,000 × 400 × 150 mm on the large machines and 750 × 1,150 × 550 mm on the medium ones. A Ø400 mm rotary table handles round parts on the 4-axis and 5-axis centers.

If your part is bigger than a build envelope, it usually gets split and bolted, or moved to sheet metal fabrication.

How fast can a machined run start?

Quotation and free DFM analysis come back within 12 hours. Production can start within 24 hours after that, and parts ship in 3–5 days. Historical late-delivery probability is below 2%.

Those windows assume the drawing is final and the material is in stock. A change to the material grade resets the clock.

Do you sign an NDA for prototype work?

Yes. Uploads are secure and confidential, and an NDA is available on request. That matters more now that more designs move between a printer, a machined insert, and an assembly line.

Send the drawing with the critical dimensions marked. We will flag anything that cannot hold the tolerance you asked for.

Which materials do you cut most often?

Aluminium 6061 and 7075, stainless 303 and 316L, 17-4PH, and tool steel for the tough jobs. On the plastic side, POM, PEEK, and PC come up often for parts that need to slide or hold shape.

Titanium TC4 and Inconel are available but cost more in spindle time, so use them only where the service temperature or weight demands it.

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Upload a STEP file and we return a quote plus a free DFM analysis. No minimum order quantity, from one prototype to 10,000+ part runs.

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