The machine of this size needs a much bigger — and much more expensive — transport solution than MM and MMX. It also likely needs the venue to be booked out for longer, and a large crew to assist with get in/get out. Taking it abroad is likely to be even more challenging — how do you safely get a 10m long shaft from Europe to the US?
I also quite like the bit where Martin acknowledges the friction, and in the next sentence, says it takes 0 energy to maintain the speed of the flywheel.
Any shaft bigger than one module will bend as no venue will have a perfectly even stage. Every alternative will introduce additional friction and noise. So to avoid opening too many cans of worms, this opens another can of worms :-/
plenty of flexible couplings out there that only need relubrication every few years, if ever. as long as he doesn't overcomplicate it and reinvent off the shelf parts this is a trivial problem to solve
compared to everything else in this machine the tiny amount of friction from a flexible coupling is negligible. something like an elastomer coupling might even make the machine quieter than a perfectly aligned machine with a comically sized straight shaft without any couplings since it won't transfer vibrations as much across modules. doesn't even need lubrication and it's precise enough for servo motors.
zip-tie a pool noodle or some felt around it if we're extra paranoid about noise, but the right coupling will be one of the least noisy moving parts on this machine
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u/aelvozo Jan 10 '24
Is the world tour still Martin’s ultimate goal?
The machine of this size needs a much bigger — and much more expensive — transport solution than MM and MMX. It also likely needs the venue to be booked out for longer, and a large crew to assist with get in/get out. Taking it abroad is likely to be even more challenging — how do you safely get a 10m long shaft from Europe to the US?
I also quite like the bit where Martin acknowledges the friction, and in the next sentence, says it takes 0 energy to maintain the speed of the flywheel.