Videos - The Coin Bot

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00:00:00	hello everyone and welcome back to the channel in the last few videos we've been talking about the first few layers of the coin moving through the coin bot if you've been following along you know that I'm trying to build a robot that is
00:00:11	capable of sorting coins by date so that I can find specific pennies to add to my own coin collection but the idea behind sorting this is that you can rotate this into position and then you'll be able to drop this into various buckets now
00:00:27	because this is a much larger Circle than this we actually want to move the pennies out to the outside edge so that they can be collected by the by the user and we'll save this internal area for the majority of coins which aren't going
00:00:43	to have much uh value uh they're going to be worth probably about a penny to most people but what I came up with was to try to do something similar to what I was doing here with the coin sorder where you have um a top area here where
00:00:58	you drop the penny in and then it is pushed off to a lower area as you can see here I did just that so I created 10 different areas for the coins to drop and an 11th one to drop down through the center for the coins that have no value
00:01:15	and as you can see if you drop a penny here it will slide off and rotate out to this Outer Edge which is great the one thing that I didn't like is the way that the CAD software renders these pieces there's actually bulges along the the
00:01:30	side here and that's that's tough to see on camera but I was really afraid that the coins might actually get stuck in that position so I wanted to try to find a way to remedy that but the gist of these two pieces is that you can see how
00:01:43	they'll work once I put the bearing in the the back side of this coin sorder that would Mount to this Peg here and then that will rotate around here so you can see that if we now drop a Penny over
00:02:01	here it will slide in theory all the way out to the edge there but again you can see that that didn't quite work it got caught here so in the next iteration I made this a little bit thicker um and that gives it a little
00:02:16	more height and the ramp angle is much higher I did some testing and that is really to ensure that these coins when they are placed on this outer edge here that they always slide out to where they're supposed to be
00:02:30	and they are uh clean cutouts we don't have to worry about that lofting issue that we were having before where the coins might actually get stuck in the center here so again this coin sorder would mount on top of this Peg and if we
00:02:45	know its position like we learned about in the last video with the limit switches we can rotate this into very exact positions and we know exactly where we're going to drop these coins um each time and in this position it would
00:02:59	drop down into the center into a larger container that will uh be able to collect all the pennies that have uh little to no value so that will eventually work down to the next layer where uh coins are collected in little
00:03:14	coin rolls um I selected 10 so that we could collect a decades worth of coins so let's say you wanted to collect all the coins from the 1960s for example you could do 61 62 63 64 and so on um the other thing that you could do was
00:03:29	collect decades so all the 1960s would go in this one all the 1970s and this one you know and all the way back so you could collect a hundred years of coins um just with this setup here and the other thing that you can do is you can
00:03:44	set up uh a system where anything earlier than say 1940 would be put in this bin because I assume that would be the rarest coins that you'd see in in general pocket change so the the goal the finished uh
00:04:01	user interface is to allow the user to decide how to sort these coins and which coins he wants in which bin we'll be able to number each one of these drop slots so that the user can determine U where they want the coins to go so I
00:04:15	think that's pretty handy once I got done with a couple of these uh versions I came up with the finished version and this is just a an improvement over this this F this version that I had here that's a little bit thicker and the
00:04:29	other thing that I did was I added some alignment pegs um these are hard to see on black Prints but I made some alignment pegs I also made some bolt holes um so that we can connect all of the layers together you can see that
00:04:44	those pegs line up directly with with holes that are in this side and the this all lines up this camera studio hole all is all lined up too so um once you get this together you can see that this rotate
00:05:00	pretty effortlessly that will be controlled by a server motor and that will be able to directly align with these drop spots and they will be the coins will be directed to the outer edge on the bottom here um so there's
00:05:14	actually bolt holes here that you can slip a bolt through and that will connect to the coin sorder up here and also the lower portion the coin collection unit that's down at the bottom will be able to attach to the
00:05:28	bottom of this because of all the alignment pegs and holes that we've created here on the bottom so this final version is the most complicated part that I've created today and I'm pretty happy with the way that it came out and
00:05:38	I think I find myself saying that a lot that uh every time I design a new part I keep finding myself saying that wow this is the most complicated part that I've ever designed and um I think that speaks to just learning the software getting
00:05:52	used to the 3D printer and getting used to all of its capabilities so I'm excited to see what comes next in the next video we're we're going to be talking about threaded inserts I think I'm overusing threaded inserts in this
00:06:03	design cuz we're basically going to put them in every single one of these bolt holes um but that should allow us to positively connect all of the pieces together and I'm pretty excited to see this actually start to come together so
00:06:07	for now that's my two cents uh thanks for watching everyone and stay awesome