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Merck MAST Master Controller and Sample Navigator replicas

True-to-size replicas of Merck's MAST Master Controller and Sample Navigator for training and display, with real screws and every label.

Client
Merck
Level of detail
Real screws, with labels applied by sticker and engraving
Repeat order
A second set for Merck's team in Korea
Brief us on a model (opens WhatsApp) Send a brief
Master Controller, true to size (width, depth, height)
381 x 320 x 178 mm
Sample Navigator, true to size (width, depth, height)
155 x 113 x 101 mm
Rounds of design drawings before printing
2
Fabrication time for both units, after design approval
5 to 6 weeks

What we brought

  1. Matching the original

    We copy your instrument down to the screws

    Drawn to the instrument's own sizes, with real screws, labelled back panels and feet that stack like the real units.

  2. Checked before printing

    You see the whole design before we print

    Merck checked drawings of both units over two rounds before anything was printed.

  3. What came next

    Good enough to be ordered again from abroad

    After the first set, Merck's team in Korea asked who made the replicas and ordered their own.

The build

How we built it

5 steps, from the brief to the finished piece. Pick a step to jump to it.

The brief

Step 1 of 5

Use
Training, display and demonstration, not working units

At Additive Inn, our 3D printing studio in Singapore, we made true-to-size replicas of Merck's MAST Master Controller and MAST Sample Navigator for training and display. We worked from Merck's photos and measurements, matching sizes, branding and labels.

Design & fitment

Step 2 of 5

We drew both units to size for Merck to check: the Master Controller's handles, stacking legs and back panel, and the Sample Navigator's five sample ports. The second round set every screw hole for a real screw.

RenderEvery screw hole set for a real screw.
RenderThe back panel, drawn connector by connector.
RenderThe Sample Navigator's back panel, ready to build.

Fabrication

Step 3 of 5

We printed each enclosure in sections to keep it true to size, then filled the gaps, sanded out the print lines and primed it repeatedly until the surface was smooth enough to paint. Both sets were made and assembled in our studio.

The Korea set's parts, before assembly.

Build and assembly

Step 4 of 5

We painted the primed enclosures blue and the front and back plates silver, then screwed every panel together. The connectors, ports and carry handles went on next, and the logos and labels were applied by sticker and engraving.

Lettering on, panels screwed together.
Merck's logo on the silver front plate.

The final build

Step 5 of 5

Both replicas were finished with every label in place, ready for training and display. The Korea set went into production in September 2026.

The finished Master Controller, front on.

The details

The likeness is in the labels and hardware: stickers and engraving over a finished surface, and a real screw in every screw hole.

The product lettering on the front plate.
Screws hold every Sample Navigator connector.

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