this is my lego vacume engine one cylinder how to make it link- www.dansworkshop.com

This is another Lego engine I made that is powered by a vacuum cleaner, a little like my older engine. It has a much larger piston (8 Lego dots x 8 lego dots x 7 brick heights) which equates to a swept volume of about 275cc. The valve is 2 lego dots by 6 lego dots by 1.3 brick heights. There is alot of friction in this engine and the piston was a little too large for an engine made out of lego. Running the vaccum cleaner too high would cause the connecting rod to be pulled off of the rod connected to the piston if the engine ran too fast. In hind sight I would have made 2 cylinders with 2 valves each 90 degrees out of phase with the other so as to encourage smooth power delivery much like my previous engine.

AllergyBuyersClub.com founder Mercia Tapping demonstrates how to allergy proof a home by reducing allergens caused by dust, cats and other pets, and reduce the use chemicals while cleaning with air purifiers, vacuum cleaners, and steam cleaners.

My wooden steam engine model, running off a vacuum cleaner. More about how to build the engine at: woodgears.ca . I also have plans for this engine for sale.

Another vacuum powered lego steam engine. This time I made the valve and power stroke shorter and used some WD40 as lubricant. Turned out not too bad but should have made the conencting rods shorter to prevent the buckling which occurs at high speed.