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The Melt3D blog.

Guides and deep dives on non-planar 3D printing and the technology inside the Melta MK1.

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Latest articles

A stack of printed layers that begins flat at the build plate and curves further with every layer above it Aug 27, 2026 in Technology

What is non-planar 3D printing?

The method that shifts and curves layers instead of stacking them flat: stronger parts, fewer supports and shapes a standard FDM printer cannot make in one piece. Start here.

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A curved shell cut into layers by fanned curved slicing surfaces rather than flat parallel planes Aug 20, 2026 in Software

Non-planar slicing and firmware

A stock slicer cuts the model with parallel planes, so it has no way to describe a layer that bends. What replaces it: curved slicing surfaces, 3D toolpaths and custom Klipper kinematics.

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Two printed layers meeting at a wavy interface, pulled apart by opposing tensile loads Aug 6, 2026 in Engineering

Curved layers, stronger 3D prints

Parts break between layers because a flat interface is the smallest weld the process can produce. Waving that boundary widens the bond and interlocks it, worth up to 62%.

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The same dome built two ways: a staircase of flat stacked layers, and nested arcs that follow the shell Jul 30, 2026 in Technology

Non-planar vs planar 3D printing

The two layer strategies row by row: supports, strength, surface finish, slicer, motion system, and the parts for which planar printing is still the better answer.

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