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Dear all,
I was looking at the pictures of
7893 today and noticed
that it’s doors open by using droid arms as hinges. I wondered if such a
technique could be employed in a train an found that yes it could... but with
limitations.
My first attempts were to use just one set of arms to make the door. This proved
vaguely possible but gave a really weird opening shape so was not very
good.Eventually I settled on an approach using two sets of arms so that the door
looked like this
MPD
This solution is satisfactory and opens quite well but I can’t help but feel
that a better solutions should exist employing only one set of droid arms. As
such I’m asking all the SNOT masters on Lugnet to try to find a better solution,
preferably using only one set of droid arms. Hopefully someone will come up with
something good. I feel that one plates height (8LDU) can be taken from the door
and it will still look OK (in fact the gap might look quite good).
A quick word of warning to CADders, these solutions will often puch the Lego
tolerances to their limits so I seriously suggest using real bricks to test.
Some of my early designs seemed fine in CAD but were just off in the brick.
Hope you enjoy the challenge and I’m sure someone can come up with something
good.
Tim
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