Description
Twelve hulls. One survivor.
KwikJet X has been in build since 11 April 2021. Twelve different hull files later, we took the best feature from each iteration and merged them into a single boat — the one you can actually get. The 40 mm pump splits the difference between a high-speed and a high-pressure design, so it climbs rivers as happily as it rips down a lake.
Nothing on this boat is there because it was easy to model. Every feature earned its place by surviving a build, a season and a river.
What is in the download
- Every printed part of the KwikJet X V2 — hull, 40 mm jetpump, steering nozzle and reversing bucket
- The hybrid mixed-flow impeller, solved from equations rather than sketched, so mass flow stays constant as the hub swells under the blades
- Trim tabs and turning fins, plus the drawings to draw your own and experiment with the shapes
- The print-optimised roll-cage
- The 52-page KwikJet X V2 build guide: print order, assembly sequence and the hardware list to have beside you before you start
On the boat
- Ball steering. A ball-jointed nozzle linkage, so there is no slop to develop over a season.
- 40 mm jetpump. A 40 mm bore necked down to a 24.5 mm outlet — about 2.7× less area — so the motor’s power leaves as speed rather than swirl.
- Reversing bucket. Full reverse, and held halfway, the fine control that holds the boat still against a current.
- Heat-set inserts. Threaded brass throughout, unique to the X, so it survives being taken apart as often as you like.
- Direct drive. No gearbox between the motor and the impeller, and no delay between the trigger and the thrust.
- Shared hardware. Screws and the electronics layout carry straight over from the KwikJet. One spares box for both boats.
Specifications
| Total length | 680 mm |
| Jetpump diameter | 40 mm |
| Nozzle outlet | 24.5 mm |
| Steering | Ball-jointed nozzle linkage |
| Reverse | Reversing bucket |
| Impeller | Equation-driven, constant mass flow |
| Hull control | Customisable trim tabs & turning fins |
| Fasteners | Heat-set threaded inserts |
| Roll-cage | Included, print-optimised |
| Hardware | Cross-compatible with KwikJet |
| In development since | 11.04.2021 |
Speeds and runtimes depend on the motor, impeller and battery you choose. Figures we quote are what we have measured on our own builds.
What you need
- A printer with at least 210 × 210 × 200 mm of build volume
- A 0.4 mm nozzle and any standard slicer — Cura, PrusaSlicer, Simplify3D, OrcaSlicer
- Files supplied as .stl and .3mf
This is a download. The files stay in your account, so you can fetch them again whenever you need them. We do not ship printed parts yet — if you would rather have the parts printed, send us a quote request.
