3D Printing InfoPrinter comparison
Markforged Onyx One vs Positron V3.2
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore Markforged Onyx One comparisonsMore Positron V3.2 comparisons
| Property | Markforged Onyx OneINDUSTRIAL | Positron V3.2COREXY |
|---|---|---|
| Identity | ||
| Brand | Markforged | Positron3D |
| Class | INDUSTRIAL | COREXY |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Markforged Onyx One Desktop 3D Printer[1] | LDO Positron v3.2 3D Printer Kit, revision v3.2 Rev A[2] |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | The defining limitation: the Onyx One prints Onyx only and has NO continuous-fibre reinforcement. The Onyx Pro adds fibreglass, the Mark Two adds the full continuous-fibre range, and the X7 is a much larger industrial machine. Onyx One specifications must never be read from Mark Two or X-series material lists[1][3][4] | The defining trait is the inverted geometry: the print head is below the bed and the machine prints upside down. Sold as a self-assembly kit; the complete printed-parts set is a separate purchase. A hard storage case is included[2] |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 12.6 x 5.2 x 6.1 in (approximately 320 x 132 x 155 mm)[1] | 180 x 180 x 165 mm[2] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | Not documented | 200 x 200 x 70 mm folded, 200 x 200 x 270 mm unfolded[2] |
| Net weight (kg) | Not documented | 3 kg net; 5.5 kg with the hard case[2] |
| Frame construction & material | Not documented | Folding frame designed to fit in a filament box; supplied with a black hard case[2] |
| Enclosure: open / enclosed; panel material; door/lid | Enclosed desktop cabinet[1] | Open frame[2] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | Not documented | CoreXY, inverted — the machine prints upside down[2] |
| Speed & Acceleration | ||
| Max print speed (claimed, mm/s) | Not documented | 250 mm/s maximum print speed (manufacturer claim)[2] |
| Max acceleration (claimed, mm/s²) | Not documented | 8,000 mm/s2 (manufacturer claim)[2] |
| Extruder | ||
| Type (direct drive / bowden) & design name | Single extruder — plastic only, no fibre channel[1] | Bowden-style, single extrusion[2] |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Not documented | PS plated-copper nozzle, 0.4 mm[2] |
| Max nozzle temp claimed AND firmware max temp limit (both values) | Not documented | 260 °C maximum (manufacturer claim)[2] |
| Stock nozzle material (brass / hardened steel / plated copper / composite tip) | Not documented | Plated copper[2] |
| Heated Bed & Surface | ||
| Max bed temp claimed AND firmware limit | Not documented | 85 °C maximum bed temperature — the lowest in this group, and the reason the material list stops at PETG[2] |
| Bed surface (material, texture, coating), single/double-sided | Not documented | Heated removable ITO glass bed[2] |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | Not documented | LDO Positron mainboard[2] |
| PSU (brand, wattage, rail voltage) | Not documented | DC 24 V, 200 W[2] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | Proprietary; slicing and print management run in Markforged's cloud-based Eiger software[1] | Klipper[2] |
| Connectivity, UI & Camera | ||
| Display: size, type, touch? | Not documented | 3.5-inch LCD touchscreen[2] |
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Not documented | Wi-Fi, USB, Ethernet[2] |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Not documented | Self-assembly kit, manufactured in China[2] |
| Materials Support | ||
| Officially supported filament list | Onyx only — Markforged's nylon filled with chopped carbon fibre. Markforged claims parts 1.4x stronger than ABS and heat deflection to 293 °F (145 °C)[1] | PLA and PETG only, per the manufacturer[2] |
Manufacturer claims, independent measurements, packages and test conditions retain their source wording. FDM linear speed and resin vertical speed use different units and are not directly comparable. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.
Sources for this comparison
- Markforged Onyx One desktop composite 3D printer listing exbuild.com · 2026-08 · vendor
- LDO Positron v3.2 3D Printer Kit matterhackers.com · 2026-08 · vendor
- Markforged Mark Two (Gen 2) specification page aniwaa.com · 2026-08 · doc
- Markforged X7 (Gen 2) specification page aniwaa.com · 2026-08 · doc