Home
Plastic Model Kits
- Airfields
- Disney Planes
- Cars
  - 1/24
  - 1/16
  - 1/43
  - Formula 1
  - 1/32
  - 1/8
  - 1/12
  - Accessories
  - 1/35
  - Others
  - 1/60
  - Revell Junior Kit
  - 1/20
  - 1/25
  - 1/72
- Disney Cars
- Trucks
  - 1/24
    
    Tractors
    
    Trailers
    
    Tractors w/trailers
    
    Accessories
    
    Trucks
    
    Wreckers
    
    Fire trucks
  - 1/32
  - 1/43
  - 1/25
  - 1/144
  - 1/35
  - 1/28
  - 1/72
- Airships
- Plastic Loco & Cars Model Kits
- Agricultural tractors
- Buses
- Fire trucks
  - 1/24
  - 1/35
  - 1/72
  - 1/25
  - 1/20
  - 1/48
- Plastic Aircraft Model Kits
  - Accessories 1:4
  - TAMIYA Aircrafts Models
    
    1/72
    
    1/48
    
    1/32
    
    1/100
  - 1/18
  - 1/48
  - 1/700
  - 1/200
  - Others
  - Rockets 1/48
  - 1/144
  - Rockets 1/72
  - Passenger
  - Rockets 1/32
  - 1/24
  - 1/450
  - 1/100
  - 200mm
  - 1/35
  - Accessories 1:35
  - Accessories 1:48
  - Accessories 1:72
  - Accessories 1:32
  - 1/350
  - 1/32
  - 1/72
  - Civil
  - Accessories 1:24
- Models for dioramas
  - 1/72
  - 1/12
  - 1/32
  - 1/35
  - 1/24
  - 1/87
  - 1/48
  - 1/20
  - 30-35mm
  - Other
- Figures
  - 1/20
  - 1/76
  - 1/72
  - 6.5cm
  - The other scales
  - 1/350
  - 1/16
  - 1/9
  - 1/48
  - 1/25
  - 1/24
  - 1/144
  - 1/500
  - 1/56 (28mm)
  - Accessories 1:35
  - Pilots & Ground Personnel
    
    Figures 1/72
    
    Figures 1/48
  - 1/12
  - 15mm
  - 1/18
  - 1/35
  - 1/32
  - 100mm
  - Accessories 1/87
  - 1/87
- Science Fiction and Fantasy
- Ships
  - 1/600
  - 1/800
  - 1/1200
  - 1/144
  - 1/1250
  - 1/450
  - Accessories
    
    1/700
    
    1/350
    
    Others
    
    1/35
    
    1/200
    
    1/72
  - 1/500
  - Sailing ships
  - 1/200
  - 1/700
  - 1/1000
  - 1/720
  - 1/35
  - 1/400
  - 1/48
  - 1/570
  - 1/3000
  - 1/350
  - 1/72
  - Civil
  - Others
- Cartoon models
  - Aoshima
  - Hasegawa
    
    Egg Planes
    
    Last Exile
  - Fujimi
    
    Ships
    
    Cars
    
    Trucks
  - AFV Club
  - Suyata
  - Meng
    
    World War Toon
    
    Warship Builder
    
    mVehicle
    
    mPlane
    
    MOE Ships
- Castles & buildings
- Motorcycles / Bikes
  - 1/24
  - 1/12
  - 1/6
  - 1/9
  - 1/10
  - 1/8
  - Accessories
  - Others
- Helicopters
  - 1/35 & 1/32
  - 1/72
  - 1/48
  - 1/144
  - 1/24
  - 1/100
  - 1/350
  - 1/700
  - 1/50
  - 1/18
  - Unmanned helicopters - drons
  - 1/200
  - 1/16
  - Civil
- Engines / machines
- Gun replicas
- Animals
- Space ships & vehicles
- Armor Model Kits
  - 1/43
  - 1/76
  - 1/144
  - 1/6
  - Other scales
  - 1/35
    
    Horse-drawn vehicles
    
    Recovery vehicles
    
    Railways, locos, cars
    
    Tankiette
    
    Tanks
    
    Before Second World War
    
    Second World War
    
    Germany
    
    USA
    
    Great Britain
    
    France
    
    USSR
    
    Poland
    
    Japan
    
    Others
    
    After Second World War
    
    USA
    
    Germany
    
    Great Britain
    
    France
    
    USSR & Russia
    
    China
    
    Others
    
    Israel
    
    Polish
    
    Dioramas
    
    Amphibians
    
    Landing crafts
    
    Self Propelled Guns
    
    Second World War
    
    Germany
    
    USA
    
    Great Britain
    
    France
    
    Others
    
    USSR
    
    After Second World War
    
    Germany
    
    USA
    
    Others
    
    USSR & Russia
    
    All
    
    Rocket Launchers, Rockets
    
    Accessories
    
    Others
    
    Tracks
    
    Wheels and suspensions
    
    Ammunition, shells, boxes
    
    Dishes, bottles, boxes
    
    Engines
    
    Barrels, jerry cans, tanks
    
    Zimmerit
    
    Screws, nuts, rivets
    
    Interior Sets
    
    Tractors
    
    Trams
    
    Trucks
    
    Armored cars
    
    Cars
    
    Artillery
    
    Germany
    
    Others
    
    IFV
    
    APC
    
    Second World War
    
    After Second World War
    
    Other vehicles
    
    Motorcycles
  - 1/72
    
    APC
    
    Second World War
    
    After Second World War
    
    Artillery
    
    Germany
    
    Others
    
    Motorcycles
    
    Polish
    
    IFV
    
    Amphibians
    
    Rocket Launchers, Rockets
    
    Recovery vehicles
    
    Tractors
    
    Tankiette
    
    Horse-drawn vehicles
    
    Railways, locos, cars
    
    Landing crafts
    
    Tanks
    
    Before Second World War
    
    Second World War
    
    Germany
    
    USA
    
    Great Britain
    
    USSR
    
    Japan
    
    France
    
    Others
    
    Poland
    
    After Second World War
    
    USA
    
    Germany
    
    USSR & Russia
    
    China
    
    Israel
    
    Great Britain
    
    Others
    
    ArmoArmored cars
    
    Self Propelled Guns
    
    Second World War
    
    Germany
    
    USSR
    
    USA
    
    Great Britain
    
    Others
    
    After Second World War
    
    USA
    
    USSR & Russia
    
    Others
    
    Tracks
    
    All
    
    Cars
    
    Dioramas
    
    Accessories
    
    Other vehicles
  - 1/48
    
    Accessories
    
    Armor & equipment
  - 1/32
  - 1/18
  - 1/56 (28mm)
  - 1/350
  - Others
  - 1/24
  - 1/9
  - 1/100
    
    Others
    
    Germany
    
    USA
    
    France
    
    Great Britain
    
    USSR / Russia
    
    Poland
    
    Austria-Hungary
    
    Romania
  - 1/25
  - 1/16
    
    Armor & equipment
    
    Accessories
Wooden & Balsa Kits
Add ones
- Ship accessories
- Metal tracks and wheels
- Wires and cords
- Decals
  - Aircrafts 1/72
  - Aircrafts 1/48
  - Aircrafts 1/32
  - Aircrafts 1/24
  - Vehicles 1/72
  - Vehicles 1/35
  - Passenger aircrafts
  - Vahicles 1/48
  - Others
  - Vehicles 1/43
  - Cars 1/24
  - Aircrafts 1/35
  - Aircrafts 1/87
  - Aircrafts 1/144
  - Vehicles 1/25
  - 1/700
  - Bandai
  - Vehicles 1/16
  - AMMO of Mig Jimenez
    
    1/16
    
    1/35
    
    1/72
  - Profimodeller
    
    1/35
    
    1/87
    
    1/32
    
    1/48
    
    1/72
  - Black Lion Decals
  - Quinta Studio
    
    1/35
    
    1/32
    
    1/48
    
    1/72
    
    1/24
    
    1/43
  - Das Werk
    
    1/32
    
    1/35
    
    1/72
  - Colibri Decals
    
    Armor
    
    Aviation
    
    Others
  - Eduard 3D Decals
    
    Space
    
    1/72
    
    1/48
    
    1/32
    
    1/350
    
    1/700
    
    1/35
    
    Eddie the riveter
  - Meng
  - Hauler
  - Copper State Models
  - AK-Interactive
  - DEF Model
  - Kelik
  - HAD Models
  - Red Fox Studio
  - Ships
  - ICM
- Construction Materials
  - Plastic
  - Metal
  - Foam
  - Wood
- Bases
- Chains
- Photo-etched parts
- Conversions
  - Profimodeller
    
    1/32
  - IBG
- Metal barrels
  - Others
  - Eduard 1/35
  - Aber
    
    1/35
    
    1/16
    
    1/48
    
    1/72
    
    Warship gun barrels 1/350
    
    Warship gun barrels 1/700
    
    Warship gun barrels 1/400
    
    Warship gun barrels 1/144
    
    1/25
    
    Warship gun barrels 1/200
    
    1/56
  - CMK
    
    Barrels w/resin 1/35
    
    Barrels w/resin 1/72
  - RB Model
    
    Warships 1/100
    
    Warships 1/200
    
    Warships 1/350
    
    Warships 1/400
    
    Warships 1/700
    
    AFV 1/25
    
    AFV 1/35
    
    AFV 1/48
    
    AFV 1/72
    
    Aircrafts 1/32
    
    Aircrafts 1/35
    
    Aircrafts 1/48
  - Bronco
  - Tamiya
  - AFV Club
    
    1/35
  - Hobby Boss
  - Profimodeller
    
    1/18
    
    1/32
    
    1/35
    
    1/48
    
    1/72
    
    1/87
    
    1/16
  - Master
    
    1/200
    
    1/24
    
    1/32
    
    1/35
    
    1/350
    
    1/400
    
    1/48
    
    1/700
    
    1/72
    
    1/144
    
    1/16
  - OKB Grigorov
  - Panzer Art
  - Eureka XXL
  - Pontos Model
  - DEF Model
  - Fine Molds
    
    Ships
    
    Vehicles
    
    Aircrafts
  - Rye Field Model
  - Hasegawa
- Rubber strips
- Display cases
- Hasegawa Finish
- Ammo
- T-shirts
- Stainless steel towing cables
- Cardboard
- Tools & materials
- Masks
  - Eduard
    
    Eduard - AFV 1/35
    
    Eduard - AFV 1/48
    
    Eduard - Aircrafts 1/32
    
    Eduard - Aircrafts 1/48
    
    Eduard - Aircrafts 1/72
    
    Eduard - Aircrafts 1/35
  - Pmask
    
    1/72
    
    1/48
    
    1/32
    
    Armor 1/35
    
    1/24
    
    1/144
  - AZ Model
    
    1/72
  - Montex
    
    KAM
    
    1/24
    
    1/32
    
    1/48
    
    Maxi Mask
    
    1/24
    
    1/32
    
    1/48
    
    1/72
    
    Mini Mask
    
    1/144
    
    1/24
    
    1/32
    
    1/35
    
    1/48
    
    1/72
    
    Others
    
    Super Mask
    
    1/16
    
    1/24
    
    1/32
    
    1/35
    
    1/48
    
    1/72
  - AML
    
    1/32
    
    1/48
    
    1/72
  - CMK
    
    1/72
  - Border
    
    1/35
  - Special Hobby
    
    1/72
    
    1/48
    
    1/32
  - Kovozavody Prostejov
    
    1/72
  - Profimodeller
    
    1/32
  - Quick Wheels
    
    1/72
    
    1/48
    
    1/35
  - Das Werk
  - GasPatch Models
  - Colibri Decals
    
    Armor
  - IBG Models
  - Meng
  - Hauler
  - Fly
  - 1 Man Army
    
    Military vehicles
    
    Planes
  - ResKit
  - Techmod
  - AK-Interactive
  - Dspiae
  - Pontos Model
  - Rescue Models
  - DEF Model
  - Model Maker Decals
    
    1/32
    
    1/48
    
    1/72
    
    Kits for specific models
  - Metallic Details
  - Mark I
  - HAD Models
  - Copper State Models
- Resin parts and 3D prints
  - CMK Accessories
  - D-Day Miniature
  - Aires Aircrafts
    
    Other
    
    1/32
    
    1/48
    
    1/72
    
    Bomb bay
    
    Exhaust nozzles
    
    Accessories
    
    1/32
    
    1/48
    
    1/72
    
    Wheel bays
    
    Air brakes
    
    1/32
    
    1/48
    
    1/72
    
    F.O.D.
    
    1/32
    
    Arms and weapons
    
    1/32
    
    1/48
    
    1/72
    
    Figurines
    
    1/48
    
    1/32
    
    Cockpit set
    
    1/32
    
    1/48
    
    1/72
    
    Gun barrels
    
    1/32
    
    1/48
    
    1/72
    
    Ejection seats/seat
    
    1/32
    
    1/48
    
    1/72
    
    Gun bays
    
    1/32
    
    1/48
    
    1/72
    
    Exhaust
    
    1/32
    
    1/48
    
    1/72
    
    Guns
    
    1/32
    
    1/48
    
    1/72
    
    Pitot tubes
    
    1/32
    
    1/48
    
    1/72
    
    1/32
    
    Propellers
    
    1/32
    
    1/48
    
    1/72
    
    1/48
    
    Wheels/wheel bays
    
    1/32
    
    1/48
    
    1/72
    
    1/72
    
    Control surfaces
    
    1/32
    
    1/48
    
    1/72
    
    Electronic bays
    
    1/32
    
    1/48
    
    1/72
    
    Engines
    
    1/32
    
    1/48
    
    1/72
    
    Detail sets
    
    1/32
    
    1/48
    
    1/72
  - Kovozavody Prostejov
    
    1/72
  - Pavla Aircrafts
    
    1/144
    
    1/32
    
    1/48
    
    1/72
  - Profimodeller
    
    1/32
    
    1/35
    
    1/48
    
    1/72
  - Pavla AFV
    
    1/35
    
    1/72
  - Panzer Art
  - Vacu cabin
    
    1/48
    
    1/72
  - Aires AFV 1/35
  - Quickboost Aircrafts
    
    1/32
    
    1/48
    
    1/72
  - Mascots
  - Lion Roar - accessories for vehicles 1/3
  - Eureka XXL 1/35
  - Eduard - Big Sin
    
    Eduard - Aircrafts 1/48
    
    Eduard - Aircrafts 1/32
    
    Eduard - Aircrafts 1/72
  - Attack Squadron
    
    1/72
    
    1/48
  - Eduard - Brassin
    
    Eduard - Aircrafts 1/48
    
    Eduard - Aircrafts 1/32
    
    Eduard - Aircrafts 1/72
    
    Armor 1:35
    
    Eduard - Aircrafts 1/24
    
    Ships
  - Mantis Miniatures
  - CMK AFV
    
    1/72
    
    1/35
    
    1/48
  - Black Dog
    
    Aircrafts 1/32
    
    Aircrafts 1/48
    
    Armor 1/35
    
    Armor 1/48
    
    Armor 1/72
    
    Aircrafts 1/72
    
    Aircrafts 1/35
    
    Armor 1/16
  - CMK Aircrafts
    
    1/32
    
    1/48
    
    1/72
    
    1/144
    
    1/35
  - Choroszy
    
    1/48
  - CMK Ships
    
    1/72
    
    1/200
  - RS Models
    
    1/72
  - Master
  - Rye Field Model
  - OKB Grigorov
  - Armory Model Group
    
    Armor
    
    Airplanes
    
    Helicopters
  - Colibri Decals
    
    Armor
    
    Aviation
  - Yamamoto Model Parts
  - Hauler
  - Meng
  - ResKit
    
    Wheels and tracks
    
    Others
  - Toro Model
  - IBG
  - Rescue Models
    
    1/144
    
    1/72
    
    1/24
    
    1/32
    
    1/35
    
    1/48
  - DEF Model
  - Legend
  - Copper State Models
  - Zebrano
  - Model Maker Decals
  - Metallic Details
  - Mark I
  - Fine Molds
    
    Ships
  - AML
    
    1/32
    
    1/48
    
    1/72
    
    1/144
  - HAD Models
  - Quinta Studio
  - Red Fox Studio
- Temp
- Aber - Aircraft armament
  - 1/35
  - 1/32
  - 1/48
  - 1/72
  - 1/24
- Clear canopies
  - 1/48
  - 1/32
  - 1/72
  - 1/144
- GasPatch Models
- Cardboard elements
  - Rescue Models
    
    1/35
    
    1/48
    
    1/72
- Others
- Wheels & tracks
- Metal castings
- Accessories for vehicles and military equipment
- Aircraft accessories
- Ship accessories
  - 1/350
    
    Other
    
    Lifebuoys
- Rivets
  - 1/24
  - 1/35
  - 1/48
  - 1/72
  - Other
Tools & Accessories
Paints
Glues & fillers

Brands

Best Sellers

-8% Reduced price

Contacta Proffesional cement 25,0 g

Revell 39604

From stock

Shipping time 1 day

19.87 zł 21.60 zł

Lowest price: 14.04 zł +42%

in stock

Cement w/niddle 30 ml

Wamod 08

From stock

Shipping time 1 day

10.50 zł

in stock

-10% Reduced price

Knife blade to Excel - 1 pcs.

Excel 22611B

From stock

Shipping time 1 day

2.07 zł 2.30 zł

Lowest price: 1.49 zł +39%

in stock

-8% Reduced price

Round brush 000

Italeri 51201

From stock

Shipping time 1 day

3.96 zł 4.30 zł

Lowest price: 2.79 zł +42%

in stock

-8% Reduced price

Paint Matt Black

Humbrol 033

Sold out

Shipping time Unknown

10.86 zł 11.80 zł

Lowest price: 9.75 zł +11%

Out-of-Stock

All best sellers

Reduced price

Springing Arm Robot
Tamiya 70213

Brand Tamiya

107.10 zł

96.39 zł Save 10%

        {"2025-03-27":{"price_formatted":"94.25\u00a0z\u0142","price":94.25,"price_tax_included":"94.248032","price_tax_excluded":"76.624416","date_add":"27.03.2025","lowest":true},"2025-03-28":{"price_formatted":"94.25\u00a0z\u0142","price":94.25,"price_tax_included":"94.248032","price_tax_excluded":"76.624416","date_add":"28.03.2025","lowest":false},"2025-03-29":{"price_formatted":"94.25\u00a0z\u0142","price":94.25,"price_tax_included":"94.248032","price_tax_excluded":"76.624416","date_add":"29.03.2025","lowest":false},"2025-03-30":{"price_formatted":"94.25\u00a0z\u0142","price":94.25,"price_tax_included":"94.248032","price_tax_excluded":"76.624416","date_add":"30.03.2025","lowest":false},"2025-03-31":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"31.03.2025","lowest":false},"2025-04-01":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"01.04.2025","lowest":false},"2025-04-02":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"02.04.2025","lowest":false},"2025-04-03":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"03.04.2025","lowest":false},"2025-04-04":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"04.04.2025","lowest":false},"2025-04-05":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"05.04.2025","lowest":false},"2025-04-06":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"06.04.2025","lowest":false},"2025-04-07":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"07.04.2025","lowest":false},"2025-04-08":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"08.04.2025","lowest":false},"2025-04-09":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"09.04.2025","lowest":false},"2025-04-10":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"10.04.2025","lowest":false},"2025-04-11":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"11.04.2025","lowest":false},"2025-04-12":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"12.04.2025","lowest":false},"2025-04-13":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"13.04.2025","lowest":false},"2025-04-14":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"14.04.2025","lowest":false},"2025-04-15":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"15.04.2025","lowest":false},"2025-04-16":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"16.04.2025","lowest":false},"2025-04-17":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"17.04.2025","lowest":false},"2025-04-18":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"18.04.2025","lowest":false},"2025-04-19":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"19.04.2025","lowest":false},"2025-04-20":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"20.04.2025","lowest":false},"2025-04-21":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"21.04.2025","lowest":false},"2025-04-22":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"22.04.2025","lowest":false},"2025-04-23":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"23.04.2025","lowest":false},"2025-04-24":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"24.04.2025","lowest":false},"2025-04-25":{"price_formatted":"96.39\u00a0z\u0142","price":96.39,"price_tax_included":"96.390032","price_tax_excluded":"78.365880","date_add":"25.04.2025","lowest":false}}

Lowest price in the period of 30 days before current promotion: +2%

Quantity

Sold out

Shipping time Unknown

Description

The Educational Construction Series provides a range of informative and educational experiences through the construction of fun models. The Springing Arm Robot is no exception. The effective yet easy-to-understand mechanism allows the Springing Arm Robot to use its two motor-powered flexible arm-like appendages to propel itself rapidly forwards in an energetic springing motion. It can cover 1 meter in a mere 4-5 seconds, and thanks to the bar-shaped rear stays on the back of the robot, it will automatically right itself if it gets put the wrong way up.

Comes with conveniently pre-attached motor and switch, and includes everything needed for hassle free snap-fit/screw-together assembly.
The twin rear bars not only help the model to regain its feet, they also aid balance when the robot "jumps", and can be adjusted to help the robot turn as it progresses.
A durable underside cover protects the gearbox and underside of the robot.

Positioning one of each of the rear bars upwards and downwards influences the direction the robot takes. When the right bar is upwards and the left down, the model moves to the right and vice versa.

By changing the gearbox and arm attachment directions like so, the model moves forward using a crawling motion.

Specs: