3D Printing InfoPrinter comparison
Rat Rig V-Core 4 vs Stratasys F120
Compare hardware, build volume, printing specifications, dated prices and sources.
2 selected · all documented properties
Open these two in the interactive comparisonMore Rat Rig V-Core 4 comparisonsMore Stratasys F120 comparisons
| Property | Rat Rig V-Core 4COREXY | Stratasys F120INDUSTRIAL |
|---|---|---|
| Identity | ||
| Brand | Rat Rig | Stratasys |
| Class | COREXY | INDUSTRIAL |
| Identity & Market | ||
| Manufacturer & exact marketed model name (verify the exact product identity first) | Rat Rig V-Core 4, sold in the US as "RatRig V-Core 4 3D Printer Kit"[1] | Stratasys F120, part of the Stratasys F123 Series[2] |
| Release date (announcement and actual shipping) | Not documented | The F123 series spec sheet carried is revision 0721a (July 2021). Stratasys does not print a launch date on it[2] |
| Street price (USD; dated snapshot per entry) | $2,319.99 at Fabreeko for the fully-specified US kit (price includes shipping and duty in the continental USA), Batch 4, checked Aug 2026. 300 mm ABS-parts variant in stock, 400 mm down to one unit. Rat Rig's own base kit is priced separately in EUR[1][3] | Not documented |
| Variants & sibling models — and how to tell them apart (spec-contamination risk) | Three sizes (300, 400, 500 mm cubes) and three motion configurations: Standard CoreXY, Hybrid CoreXY (+$149.99, adds two motors to Y), and IDEX with two independent toolheads (+$450.00). Superseded by the V-Core 4.1. Raspberry Pi and enclosure panels are not included[1][3] | The F120 is the odd one out in the series: smaller cabinet (889 x 870 x 721 mm, 124 kg vs 1,626 x 864 x 711 mm, 227 kg), two external material coil boxes rather than internal spool bays, only two model materials, and no 0.127 mm layer option. Same build size as the F170 but not the same machine[2] |
| Market position: superseded? successor announced? | Superseded by the V-Core 4.1, which adds a steel X gantry, a full-metal toolhead, improved part cooling, 8 mm beds on the 400 and 500 sizes and pre-made cables. Rat Rig sells a 4.1 upgrade kit for existing V-Core 4 owners[3] | Not documented |
| Physical & Frame | ||
| Build volume X×Y×Z (mm) — advertised vs actually usable | 300 x 300 x 300, 400 x 400 x 400 or 500 x 500 x 500 mm. Sortable value is the 300 mm kit[1][3] | 254 x 254 x 254 mm (10 x 10 x 10 in)[2] |
| Machine footprint (mm) & clearance needed (cable/spool overhang) | Not documented | 889 x 870 x 721 mm (35 x 35 x 29 in)[2] |
| Net weight (kg) | Not documented | 124 kg (F120) or 227 kg with consumables (F170, F270, F370)[2] |
| Frame construction & material | 30-series aluminium extrusion with printed ABS structural parts[1][3] | Fully enclosed office/classroom-grade cabinet, factory assembled[2] |
| Enclosure: open / enclosed; panel material; door/lid | Open by default; enclosure panels sold separately[1] | Enclosed build chamber[2] |
| Kinematics & Motion Hardware | ||
| Kinematics (bedslinger i3 / CoreXY / other) | CoreXY, or Hybrid CoreXY, or Hybrid CoreXY IDEX depending on the configuration ordered[1] | Not documented |
| Stepper drivers (exact model e.g. TMC2209; UART/SPI; sensorless homing?) | TMC2209[1] | Not documented |
| Extruder | ||
| Type (direct drive / bowden) & design name | LDO Orbiter 2.0 direct-drive extruder[1] | Not documented |
| Hotend & Nozzle | ||
| Hotend design (proprietary/standard; quick-swap mechanism?) | Phaetus Rapido 2.0 UHF[1] | Not documented |
| Heated Bed & Surface | ||
| Bed surface (material, texture, coating), single/double-sided | Keenovo silicone bed heater[1] | Not documented |
| Leveling & Z-Offset | ||
| Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe) | Beacon eddy-current probe[1] | Not documented |
| Cooling & Air Handling | ||
| Part-cooling fan(s): count, size, ducting design | Nidec 4028 part-cooling fan[1] | Not documented |
| Electronics & Power | ||
| Mainboard model & MCU (exact chip markings if teardowns exist) | BigTreeTech Octopus[1] | Not documented |
| Input voltage (110/220 V, switch or auto) | Not documented | 100-132 V / 15 A or 200-240 V / 7 A, 50/60 Hz[2] |
| Firmware & Openness | ||
| Firmware base & current version (Klipper fork / Marlin fork / proprietary) | RatOS, Rat Rig's Klipper distribution[3] | Proprietary Stratasys firmware; print preparation is GrabCAD Print. The F370 additionally carries an Insight software licence and DoD STIG compliance powered by Red Hat Enterprise Linux[2] |
| Connectivity, UI & Camera | ||
| WiFi (band/standard), Ethernet, USB ports, SD/flash-drive | Not documented | Wired TCP/IP at 100 Mbps minimum, 100base-T Ethernet, RJ45. Wireless-ready IEEE 802.11 n/g/b with WPA2-PSK or 802.1x EAP, CCMP/TKIP encryption[2] |
| Calibration Routines & QoL | ||
| Assembly level & time from unbox to first print | Self-assembly kit; Raspberry Pi and enclosure panels sourced separately[1] | Not documented |
| Materials Support | ||
| Officially supported filament list | Not documented | ABS-M30 and ASA, with SR-30 support material. Notably the F120 does NOT get PLA, FDM TPU 92A or ABS-CF10, and cannot use the 0.127 mm layer height[2] |
| Safety | ||
| Certifications (UL/ETL/CE/FCC — verify, don't assume) | Not documented | CE (low-voltage and EMC directives), FCC, EAC, cTUVus, KC, RoHS, WEEE, REACH, RCM[2] |
| Noise & Power Consumption | ||
| Noise: claimed dB and independently measured dB (distance/method) | Not documented | 46 dB maximum during build, 35 dB idle — manufacturer specification, no distance or method stated, and not an independent measurement[2] |
| Independently Measured Performance | ||
| Dimensional accuracy measurements (third-party, with numbers) | Not documented | Parts produced within +/-0.200 mm or +/-0.002 mm/mm, whichever is greater. Manufacturer figure derived from statistical data at 95% dimensional yield; Z accuracy carries an extra -0.000/+slice-height tolerance[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
- RatRig V-Core 4 kit (US distributor listing) fabreeko.com · 2026-08 · vendor
- Stratasys F123 Series product specification sheet (PSS_FDM_F123Series_0721a, PDF) stratasys.com · 2026-08 · doc
- Rat Rig V-Core 4.1 product page ratrig.com · 2026-08 · vendor