A radio-controlled fishing boat that is suitable for exteriors, for example on a lake. The boat is almost 68 cm long, 20.5 cm wide and approximately 28 cm high. Parts of the boat are designed so that they can be printed on the MK3 printer. Since I plan to use the boat in the summer on the lake, I chose PETG filament for higher heat resistance. There are two options for installing the DC motor size 130 (Fig. 1) or 540 (Fig. 4).

The body of the boat consists of 5 parts that need to be glued together. Each part has holes for alignment pins. The following parts are required for the body of the ship.

• Body cut 1
• Body cut 2
• Body cut 3
• Body cut 4
• Body cut 5

The cabin consists of the following parts, which need to be glued together:

• Cabin main 1st floor
• Cabin main 2nd floor
• Cabin main roof
• Handrail
• Smokestack

The following parts are used to cover the intallation holes for the engine and the rudder:

• Rudder cover
• Cabin small

The covers and the cabin are attached to the body with M2x10 screws.

There are parts for storing the battery and electronics:

• Small box
• Big box

Option 1 - DC motor 130

Fig. 1: Option with DC motor 130

The motor set (5A Brushed ESC Rc Boat Motor Drive Set with copper coupling, shaft and propeller) can be ordered from:

[https://www.aliexpress.com/item/1005005506519701.html?spm=a2g0o.order_list.order_list_main.36.781d1802LSAQUV](https://www.aliexpress.com/item/1005005506519701.html?spm=a2g0o.order_list.order_list_main.36.781d1802LSAQUV)

Fig. 2: DC motor 130 installation view

Fig. 3: DC motor 130 side sliced view

Option 2 - DC motor 540

There are used DC Motor 540 27T with ESC HIMOTO HM03058.

[https://www.rcsvet.sk/stejnosmerne/88496-robitronic-stejnosmerny-motor-razer-540-27t-4046032090936.html](https://www.rcsvet.sk/stejnosmerne/88496-robitronic-stejnosmerny-motor-razer-540-27t-4046032090936.html)

[https://www.rcsvet.sk/auto-lodni/19415-himoto-elektronicky-regulator-auta-1-16-4894220003547.html](https://www.rcsvet.sk/auto-lodni/19415-himoto-elektronicky-regulator-auta-1-16-4894220003547.html)

It is necessary to print additional parts for mounting the motor and gears. Gears are printed from PC material for higher durability.

• 540_adapter
• Gears_Motor_540

Fig. 4: Option with DC motor 540

Fig. 5: DC motor 540 installation view

Fig. 6: DC motor 540 side sliced view

Rudder and servo intallation

Mini waterproof servo is used to control the rudder.

[https://www.aliexpress.com/item/4001132684438.html?spm=a2g0o.order_list.order_list_main.25.781d1802LSAQUV](https://www.aliexpress.com/item/4001132684438.html?spm=a2g0o.order_list.order_list_main.25.781d1802LSAQUV)

The following parts are required to assemble the rudder and install the servo:

• Rudder parts

Fig. 7: Rudder and servo installation view

Fig. 8: Rudder and servo side sliced view

Stand

A stand is also available for safe storage of the boat. Individual parts of the stand need to be glued together.

• Stand parts

Fig. 9: Assembled stand