Electronic Parts¶
This page lists the electrical and electronic components required to build the My-Cloner Rev A.
The My-Cloner Rev A uses a 24 V DC electrical architecture, with a Raspberry Pi Zero 2 W running Klipper and an MKS Robin Nano V3 controlling the printer hardware.
Authoritative BOM
The My-Cloner Rev A BOM V2 is the authoritative Bill of Materials for this hardware revision.
Purchase links are provided for convenience and may include affiliate links. Equivalent components may be used when they meet the specifications listed in the BOM.
Installed Hardware Update — 2026-09-28
This page incorporates the owner-reported installed hardware. See the hardware record. Existing BOM V2 downloadable files have not been revised in this documentation update.
Control Electronics¶
| Qty | Component | Specification | Amazon | AliExpress |
|---|---|---|---|---|
| 1 | MKS Robin Nano V3 Controller Board | V3.0; 24 V DC main system supply | Amazon | AliExpress |
| 1 | Raspberry Pi Zero 2 W | Klipper host | — | — |
| 1 | MKS TS35 V2.0 Display | Integration pending validation | Amazon | AliExpress |
| 1 | LM2596 DC-DC Step-Down Converter | 24 V DC input → 5 V DC output for Raspberry Pi | — | — |
| 5 | TMC2209 Stepper Driver | StepStick-compatible, UART mode, DIAG pin available, compatible with MKS Robin Nano V3 | — | — |
Display Integration
The MKS TS35 V2.0 is part of the My-Cloner Rev A hardware configuration.
Its final integration with the Klipper-based system is still being validated. Mainsail remains the primary printer interface.
Power System¶
| Qty | Component | Specification | Amazon | AliExpress |
|---|---|---|---|---|
| 1 | MEAN WELL LRS-350-24 Power Supply | 24 V DC, 14.6 A, 350.4 W | Amazon | AliExpress |
| 1 | IEC C14 Mains Inlet | Integrated switch and fuse | Amazon | AliExpress |
Mains Voltage
The power supply and IEC inlet are connected to AC mains voltage.
Mains wiring must follow the My-Cloner wiring documentation and applicable electrical safety requirements.
Never work on mains wiring while the printer is connected to a power outlet.
Motion System¶
The My-Cloner uses five stepper motors.
| Qty | Component | Function | Amazon | AliExpress |
|---|---|---|---|---|
| 1 | 17HS13-0404S1 — 0.4 A/phase | X axis | Amazon | AliExpress |
| 1 | 17HS13-0404S1 — 0.4 A/phase | Y axis | Amazon | AliExpress |
| 1 | 17HS13-0404S1 — 0.4 A/phase | Left Z axis | Amazon | AliExpress |
| 1 | 17HS13-0404S1 — 0.4 A/phase | Right Z axis | Amazon | AliExpress |
| 1 | 17HS10-0704S — 0.7 A/phase | Direct-drive extruder | Amazon | AliExpress |
Stepper Drivers¶
The My-Cloner Rev A uses 5 × TMC2209 stepper drivers.
The drivers are intended to operate in UART mode with the MKS Robin Nano V3.
Sensorless homing is planned for the X and Y axes using the TMC2209 DIAG outputs.
The Z axis uses the P.I.N.D.A. probe for Z referencing.
Heated Bed¶
| Qty | Component | Specification | Amazon | AliExpress |
|---|---|---|---|---|
| 1 | Heated Bed | Ender 3 type; 235 × 235 mm, 24 V DC, 220 W | Amazon | AliExpress |
| 1 | Heated Bed Thermistor | Original Ender 3 NTC 100 kΩ; exact curve / sensor_type TBD | — | — |
The removable spring steel sheet and PEI print surface are mechanical/build-surface components and are listed in the Mechanical Parts BOM.
Hotend Electronics¶
The My-Cloner Rev A uses a V6-style hotend.
| Qty | Component | Specification |
|---|---|---|
| 1 | Heater Cartridge | 24 V DC, 40 W; Ø6 × 21 mm |
| 1 | Hotend Thermistor | Owner-identified ATC Semitec 104GT-2, NTC 100 kΩ; reported Ø3 × 15 mm cartridge |
The remaining mechanical hotend components are defined separately in the engineering BOM.
Thermistor Specification
The exact hotend thermistor model must match the Klipper configuration.
Do not substitute a different thermistor type without updating and validating the firmware configuration.
Cooling¶
| Qty | Component | Specification | Amazon | AliExpress |
|---|---|---|---|---|
| 1 | 4010 Axial Fan | 24 V DC — hotend cooling; FAN1 / PC14 | Amazon | AliExpress |
| 1 | 5015 Blower Fan | 24 V DC — part cooling; FAN2 / PB1 | Amazon | AliExpress |
24 V Fans
The My-Cloner Rev A uses 24 V fans.
Earlier My-Cloner documentation referenced 12 V fans. Those references are obsolete and must not be used for Rev A.
Sensors¶
| Qty | Component | Specification | Amazon | AliExpress |
|---|---|---|---|---|
| 1 | P.I.N.D.A. Probe | V1, three wires; Z- / PC8, GND, 5 V reported | Amazon | AliExpress |
| 1 | IR Filament Sensor | IR V0.4; MT_DET1 / PA4; mechanical ball and magnet mechanism | Amazon | AliExpress |
Electrical Architecture¶
The main power architecture of the My-Cloner Rev A is:
AC Mains
│
▼
IEC C14 Inlet
Switch + Fuse
│
▼
MEAN WELL LRS-350-24
│
└── 24 V DC
│
├── MKS Robin Nano V3
├── Heated Bed
├── Hotend Heater
├── 4010 Hotend Fan
├── 5015 Part Cooling Fan
│
└── LM2596
│
└── 5 V DC
│
└── Raspberry Pi Zero 2 W
For connector locations, wire routing and electrical assembly, refer to the Wiring & Electronics documentation.
Complete BOM¶
For the complete engineering Bill of Materials, including references and revision-controlled component information, see: