MetMo CubeClub Forum

This is your chance to win a limited edition Gold Multi Drive! (not to be dramatic but it's the last one ever) To enter all you need to do is: - Leave a review of your Multi Drive  - Reviews on additional Multi Drivers owned or Multi Drive items count as an additional entry - Reviews with a picture will count as an additional entry Deadline to enter is Monday 2nd June at 11:59 BST! Any questions at all, just leave a comment below 😊 Terms and Conditions 

It's May, the sun is shining, and we're so ahead of the game that Pistons are already heading out of the door. As always, this will be staggered across the whole month so don't worry if you don't get tracking info right away. We'll make sure all orders have left us by the time the month is out, so while you wait why not hunker down and watch all 8 days, 1 hour, and 33 minutes of the canon Star Wars films and TV shows? It is May after all. 

Just got my piston and as any rightful nerd would do I had to do some math. I was curious how long it would take the piston to go down by itself without any external pressure and also how much actual air is leaking out. First, I tried with the piston on top but that took way too long, and I lost patience, so I flipped it upside down and let the heavier cylinder be on top. This took roughly 6 minutes and 16 seconds. I calculated the cylinder volume to be roughly 4320mm^3, not accounting for the small bore in the middle of the piston. This came out to about 0.01149 mL of air leaking out per second, ~0.266% of the volume per second, or ~3.09 x 10^17 molecules of air at STP. That is all, the attached timelapse video would be equivalent to about 15x speed.