Just received it today 08/01/15,no problems noted great for my kid,for school demonstration Thank you HKAt first a was a bit worried as the box looked like it had been used in a rugby match, but fortunately most of the parts were still okay. I only needed to place 1 part back and it all worked.
I filled the holder with methylated spirit and after some time to warm up let her spin. It worked great first time. I get about 15 minutes of runtime out of one filling. I works as advertised, just a fun little machine, I like it a lot.First he had not enough power, i made the rod length longer 18.5 mm from the piston to the rod end. now here is working fine.