marshall Posted May 20, 2013 Posted May 20, 2013 I am not experienced with technic, but I've got a ton of technic pieces from various mixed lots I've acquired over the years. I'm currently working on a Cloud City MOC, and I'd like to add in a couple of sliding doors (one that slides to the side, one that slides upwards), as well as an elevator (the elevator would go up/down a height of 20-bricks). Everything I've seen from searching around has motorized techniques, which is not what I'm looking for. I'd like something more simple that I can operate by turning a small dial/crank. Can anyone point me either to some basic techniques that would be applicable, or to some example sets (official lego or MOC) that I could drawn on? Thanks in advance! Quote
Someonenamedjon Posted May 20, 2013 Posted May 20, 2013 You can use string for the elevator, connected to a crank, gear racks connected to a gear for the door, and the same goes for the up and down door. Quote
rumpletump Posted May 21, 2013 Posted May 21, 2013 (edited) Yep a string and crank and some gears sounds like a good idea. But I would use a worm gear in there somewhere if I was going to do it that way to stop it free falling back down.. Edited May 21, 2013 by rumpletump Quote
Doc_Brown Posted May 21, 2013 Posted May 21, 2013 I was planning on building an elevator later this year hopefully with nxt or Ev3. There is an awesome vid on youtube somewhere where a worker above the elevator records in HD how everything works. If I find it I will link it here. Apart from that all I know is you will need a counter weigh the the lift itself. Quote
Someonenamedjon Posted May 21, 2013 Posted May 21, 2013 Could you show us the progress you have on Cloud City, or give us the link to it? Quote
Nazgarot Posted May 21, 2013 Posted May 21, 2013 Using a loop of string/rope connected to your lift/doors and through a pulley system on a motor you would get full control of both up and down motion. By using a counterweight you could make it a lot easier on the motor, and a mini motor might be enough, and that would save space. To control it with a dial/crank you could simply put a axle through a PF switch and hide the switch while you connect the crank to the axle. Using mini motors should make it a lot easier to hide the whole contraption. If you give us pictures we can probably help with the design and make examples for you to implement... -ED- Quote
marshall Posted May 21, 2013 Author Posted May 21, 2013 Thanks for the help everybody! I'm hoping to get some work on this done this weekend--I'll post progress pictures then. Quote
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