2 cyl rotary lve

[dudeface]

One of my old engines

<a href="https://www.youtube.com/watch?v=a1ZQwidAOWM" target="_blank">http://www.youtube.com/watch?v=a1ZQwidAOWM</a>

[MJM460]

That’s real cool.

As Mike (Vixen) would say, real engines go round.

Another great design and interesting variation on your designs.

I suspect you don’t want them to do much faster as wear and tear increase with speed.

Do you see signs of wear on your moving parts?

Pity to take it apart, but that’s what Lego is for, right?  But you have this good record of your achievement.

Well done again.

MJM460

[Roger B]

Splendid  You have some great ideas 

[dudeface]

That’s real cool.

As Mike (Vixen) would say, real engines go round.

Another great design and interesting variation on your designs.

I suspect you don’t want them to do much faster as wear and tear increase with speed.

Do you see signs of wear on your moving parts?

Pity to take it apart, but that’s what Lego is for, right?  But you have this good record of your achievement.

Well done again.

MJM460

Thanks again, believe it or not the world record for LEGO vacuum engines is 7,300 rpm! There's actually no noticeable wear from being part of an engine on any of my pieces. Olive oil helps a lot.