Videos - The Coin Bot

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00:00:00	so this week I started working on the next layer of the coin sorting robot and I'm pretty happy about the way it turned out even though I didn't quite have enough time to finalize the design this layer actually serves two purposes the
00:00:12	first is to allow you to create a stack of pennies that will drop down onto that coin slider that I've been talking about in the last few videos the other purpose is to hold the top camera at the perfect distance away from the penny so that you
00:00:25	can completely fill the frame with the image of the coin and that allows you to get the highest resolution image of the coin that you can given the parameters of the camera that we're using so this is the view of the coin but that we've
00:00:38	been looking at over the last few weeks the coin slider here is what actually picks up a penny from a stack moves it into position over the camera and then it drops it into the sorder over here and we've seen how that works over the
00:00:56	last few weeks here but if I pick up a penny I'll demonstrate that one more time if I pick up a penny here you can see that it kind of drops into position there it rotates it over the camera and as it moves around to the
00:01:11	coin sorting position it will drop onto that and then into one of the appropriate slots on the outside the next layer that I've been working on looks a little bit like this and that actually sits on top of this whole thing
00:01:28	and then we can put our prototype here and then I'm just going to put some pieces of tape on there I'll do that off camera one second all right so off camera I threw some pieces of tape on here because this is just a prototype of
00:01:41	this layer like I said I didn't quite have enough time to to finish what I was doing here but we have this lined up over the the bottom camera position there this larger hole is what actually holds the upper camera into position and
00:01:56	this hole represents the stack of pennies that the coin slider is going to pick up and if you watch I will drop some pennies down here to create the stack and you can see that that forms a
00:02:13	nice stack in there we can probably get a whole roll in there and one more just for fun and then as I'm just going to do this manually so you can see this but as I rotate the coin slider it's going to pick up a
00:02:30	Penny from that stack and rotate it into position between these two cameras and you can see how that works so that's kind of nice and then it will keep going pick up the next penny in this deack and as this is rotating around you'll see
00:02:44	that this Penny gets dropped in the coin sorder so that's how that works and you can see that this is now moving Pennies from the stack through all of the different positions here and that is the entire coin stack work through the coin
00:03:02	bot moving through all the various positions and we've shown in the previous videos how the coin sorder Works how the coin slider works and that is generally how it's going to operate it will be able to quickly recognize
00:03:17	pennies as we go through this and now this camera should be at the perfect distance to capture the penny and we'll show you that here on screen in just a second and we also have the bolt holes lined up you saw just few minutes that I
00:03:30	rotated all those pennies through the through the entire position so there's no pennies left in there and the two cameras are directly above each other so they're taking a picture of each other which is kind of funny right now but let
00:03:43	me put pennies back in here into the extense SP so we have another stack of pennies in there and then we're going to that's a live camera feet up there and we're just going to rotate this into position
00:04:01	and when it gets to there you can see that there's now a penny in position there and we can actually take an image of both sides of the coin to see the other side of the coin I needed to change a parameter for the camera to
00:04:17	switch to the other camera have to do that manually right now so you can see that this is actually taking images of both sides of the coin and it's not perfectly lined up yet but we're getting close so I'm just happy with the way
00:04:30	this is working we have both cameras working we have the lighting setup working the other thing that I wanted to show about this was that there I went through a couple of different versions the trick of this is that in order to
00:04:41	hold this camera in position over the coin slider it needs to be kind of hanging out there in space and the way that I figured out how to do that was like this and you can see that this is my first prototype here but that
00:04:56	actually allows the camera to kind of dangle in Space over the coin slider and allows the coin slider to rotate through those positions so um it would go over it like this and um that one wasn't quite set up
00:05:13	quite right so I actually went through a couple of different versions of that you can see that I created a couple of different prototypes here before I have this uh one with the funky angle here so
00:05:27	the idea behind this is that we have a flat plate on this angle here and that will be rotating pennies a big jumble of pennies that we can drop onto the top of the coin bot and it will rotate and actually drop pennies down onto the
00:05:40	stack once we have a stack of 50 then I'll turn off this rotating mechanism and and the coin slider will continue to sort the pennies like I've talked about before but this mechanism on the top will actually keep this stack full at
00:05:56	all times but I think that's enough for this video and as always if you have feedback for me about how I can build better Stacks or camera Studios or even how to make better videos please leave a comment down below but for now that's my
00:06:01	two cents thanks for watching everyone and stay awesome