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Kingroon KP3S

Kingroon KP3S

By Kingroon · Budget 3D Printers · 3D Printing

  • Build volume: 180 x 180 x 180 mm
  • Max print speed: 180 mm/s
  • Max nozzle temp: 260 C
  • Max bed temp: 100 C
  • Filament: 1.75 mm

Lowest price seen
$139.00
from $139.00 at p3d.mx · Checked Oct 16, 2026

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Problems, parts and running costs

Summary

A compact, budget cantilever FDM printer with a 180 x 180 x 180 mm build volume, a direct-drive extruder, X/Y linear rails and a color touchscreen. Check one number before you buy: the rated maximum print speed is 100 mm/s, not the 180 mm/s some listings repeat.

Strengths

  • A direct-drive extruder and linear rails on both X and Y are unusual at this price.
  • Reviewers report easy assembly: four screws and two cords, about ten minutes.
  • Silent stepper drivers keep the motion quiet.
  • Good out-of-box print quality across PLA, PETG and TPU.
  • The 32-bit mainboard uses socketed drivers, so a dead driver can be swapped.
  • It resumes a print after a power failure.

Weaknesses

  • Bed leveling is manual and has to be done hot, because the machine expands as it warms.
  • The power supply is a separate external brick with a short connecting cord.
  • The tabletop spool holder grips poorly, especially cardboard spools, and can let filament tangle.
  • The stock hotend and part-cooling fans are loud; many owners replace them.
  • The soft magnetic print surface feels cheap, sticks too well and wears out.
  • One reviewer warns the mainboard’s barrel power connector looks under-rated for the heated bed’s draw.

Verified specifications

TechnologyFDM, single 0.4 mm nozzle.
Build volume180 x 180 x 180 mm.
Dimensions280 × 285 × 370 mm; net weight 6 kg (13.2 lbs).
NozzleMK8 thread taking V6 nozzles; rated to 260°C.
Filament1.75 mm; the manufacturer lists PLA, Wood, TPU and ABS.
Motionlinear rails on X and Y; Z runs on wheels.
Extruderdirect drive, described as a Titan-style unit with a 3:1 gear ratio.
Mainboard32-bit with socketed TMC2225 silent stepper drivers.
FirmwareMarlin.
Bedheated, with a removable flexible magnetic print surface.
Levelingmanual with knobs; auto leveling only with an optional 3D Touch probe.
Screencolor touchscreen set into the base.
ConnectivitymicroSD/TF card and USB; no Wi-Fi on the base model.
Print speedrated maximum 100 mm/s with 200 mm/s travel; Kingroon recommends 40-60 mm/s.
Power240 W machine; a 24 V / 15 A / 360 W external supply.
Layer resolution0.05-0.3 mm.
Full research notes and sources

The one figure worth double-checking is print speed. The 180 mm/s some listings carry is not supported by any source. Tom’s Hardware also found corners came out “a little lumpy” when pushed to that 100 mm/s ceiling, so plan around it.

Two smaller discrepancies circulate.

Assembly, leveling and setup

Product Design Online clocked about ten minutes of assembly, four screws and two cords. Leveling is the beginner hurdle: it is manual, the knobs sit close to the touchscreen, and Tom’s Hardware warns the machine expands as it heats, so level it hot rather than cold. Independent testing shows the hotend reaching 200°C in 50 seconds and 250°C in 70 seconds, and the bed reaching 60°C in two minutes and 100°C in just under four minutes. Power draw measured about 10 W idle, 215 W while heating and 75 W while printing.

Fans, noise and upkeep

The hotend and part-cooling fans are 3010 axial units; 3D Print Beginner calls them the noisiest of any printer it tested, and several owners swap the fans or the whole toolhead. The flexible magnetic print surface is a consumable and wears out, so a PEI spring-steel sheet is the common upgrade. When you check the Z-axis rollers, do not over-tighten them, because that can develop flat spots.

Repairs, parts and running costs

A long-term owner of the larger sibling model says replacing a broken belt was straightforward. Expect to budget for filament, a replacement build surface or PEI sheet, and optionally an external MOSFET to protect the heated-bed circuit. The only first-party warranty term found is a 15-day return and exchange for devices bought directly from Kingroon’s website; third-party purchases follow the seller’s terms. Kingroon’s customer support is described as inconsistent, and there is no dedicated user forum.

Is it worth it?

Reviewers consistently call the KP3S a strong value at or below roughly $160-170, where the direct-drive extruder, linear rails, 32-bit board and touchscreen are unusual for the class. Above about $180 the case weakens, since the manual leveling, external power brick, weak spool holder and noisy fans remain. Owner reports put real prices lower still: about $130 from AliExpress around Christmas in r/3Dprinting, and one buyer picked up a used unit for $50 with extra filament and a glass bed. A reviewer bought one for about $158 including shipping from an EU warehouse. A 3DPros database listing of $225-250 looks stale and should not be used as a value anchor.

Which model this is

This page covers the base Kingroon KP3S, also sold as the KP3S 3.0, released in 2021. Do not confuse it with the KP3S Pro (200 x 200 x 200 mm, internal power supply), the KP3S Pro V2 (Klipper firmware) or the KP3S Pro S1, which are different machines.

The Amazon listing for the base model is ASIN B098DZBVVM.

Sources

Manufacturer:

Independent reviews:

Owner reports:

Parts and stores:

Buying guides for this category

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