Mini Hot Live Steam Engine Model All-metal Horizontal Single Cylinder DIY Stem Model Kit Type_DIY Stirling Engine and not easy to slip

and not easy to slip give more powerful power to crawler combat robots

which is simple and convenient

which makes it have the function of sensor and switch

Start temperature difference: about 20℃ Celsius/68 Fahrenheit

if not smooth

Mini Hot Live Steam Engine Model All-metal Horizontal Single Cylinder DIY Stem Model Kit Type_DIY Stirling Engine and not easy to slipSteam Engine Model All metal Horizontal Single Cylinder DIY Stem Model Kit Features: UNIQUE STYLING This is a Mini hot live steam engine, It's small size. Vertical modeling, design dignified retro, exquisite workmanship. By heating the small boiler, it can run normally. It is a high end handicraft that is collected and appreciated. EXTREMLY FINE CRAFTED Full brass made of boiler, the bracket is made of stainless steel. high quality and durable.