LEGO SYSTEM Trains : 28008


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Subject:	Re: "Big Blue" Pneumatic 4-6-4 engine and tender
Newsgroups:	lugnet.org.ca.rtltoronto, lugnet.trains
Date:	Fri, 27 Oct 2006 19:16:51 GMT
Viewed:	881 times

<snip> > Let me know what you think, including any suggestions for improving the > functionality/looks of Big Blue > > Dave K Very cool. I can't tell from the pictures, but are your driver wheels on either side of the engine set 90 degrees out of phase with the associated timing difference on your valve positioning? Ben In lugnet.org.ca.rtltoronto, David Koudys wrote:

Message has 2 Replies:

		Re: "Big Blue" Pneumatic 4-6-4 engine and tender
(...) Yep--did the 90 degree offset--when you watch the video, you can see the wheels pause 4 times per revolution (using compass points-- NE, SE, SW, NW)--that's when one phase is done and waiting for the next phase. 4 phases with two pistons! I (...) (18 years ago, 27-Oct-06, to lugnet.org.ca.rtltoronto, lugnet.trains)

		Re: "Big Blue" Pneumatic 4-6-4 engine and tender
In lugnet.org.ca.rtltoronto, Ben Fleskes wrote: <snip> (...) A huge oversite on my part-- Ben, I know I've thanked you before, but seriously, again thanks for the wheel sets that you produce--without them, my pneumatic train wouldn't have happened, (...) (18 years ago, 27-Oct-06, to lugnet.org.ca.rtltoronto, lugnet.trains)

Message is in Reply To:

		"Big Blue" Pneumatic 4-6-4 engine and tender
An idea forming in the mind many years ago was to take the pneumatic cylinders and actually make a 'steam' engine. Inspired by Trevyn a few years back at hte hobby show, when he showed up with a pneumatic engine that ran on the duplo tracks, I (...) (18 years ago, 27-Oct-06, to lugnet.org.ca.rtltoronto, lugnet.trains)

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