 Hello everyone and my capstone is an Apple grading machine So a little bit about its background my former business colleague approached me with a request to make a Sorting machine for their agriculture goods that they are exporting and what he was really thinking was a very simple and Durable affordable machine with a low maintenance cost and accessible building materials And the last point was particularly important for them as they had an experience with these very high-end machines And when they broke or some part of them were broke They were had the problems with finding that part and shipping it here and they were losing money during this process So I started my research from how the system of the working principle would be So they had these cargo cars which were moving 500 kilogram boxes To the actual machine which was going to be filled So it has to have an uploader which will unload it to the system Then an incline intermediate platform and a conveyor line and a sorting chamber So this is how it should be The unloader intermediate platform conveyor line sorting chamber and then the boxes where it should be sorted So I started the research part second research part was about the actual sorting chambers and the types of them the first one is drum camera Turbular chamber incline bed and a hemispherical drum. So I will Show you some of them the drum camera. It's actually a drum that is rotating and has a different sizes of holes in it and while it rotates object passes through it and when it Matches the size of the holes it gets it falls down to the boxes as you can see here and the sorting takes place Okay, the second type is a Turbular chamber where we have these tubes that are connected to the motors and Some part of them are rotating clockwise the other ones Counterclockwise and in a different distances. They have different gaps between them So when the object approaches to the gap with it which matches the size of it It falls down to the boxes. So it sorts the third type is an incline belt It's actually a conveyor line that moves the object and then the other part of conveyor line has a gates in front of it and After the gate you have the boxes. So the fourth type is the type that I choose is an hemispherical Sorter this has an hemispherical object In between the boxes and we have the gates in front of it and by regulating the sizes of the gates You are allowing to pass certain sizes and others not to so After this part I have to select the materials and the devices for this machine and That's actually the motor the reducer of for that motor and the driver and those three are kind of interconnected The other part the the other thing was the conveyor belt as for a different applications we need a different kind of belts and with different thicknesses and different kind of Sticknesses or how many rubber should be there in order to make sure that the Thing should actually be sticking to the conveyor line and not to slide in its place The for the fifth thing actually was the metal type I was thinking of making it with a stainless steel, but that is as it is hard to process hard to work with And it's costly. I choose another type regular metal But as these regular metals have a problem of rust I thought on having the epoxy based paint on it So we can avoid these kind of problems So the client told that they already have an up on loader. So my design was not included the design of it doesn't include the unloading part and I made it like a Lego so you have to can assemble and disassemble it every time you want Without as we did as less welding as possible. So we can avoid the transportation issues as it is also big So the first part is the intermediate platform. I achieve this that there are these two plates First of which is 2.5 degree and the second five and I get these degrees After the experimentations so I could get the needed amount of speed before the conveyor line second part is all of those are the renders of my project so This is the conveyor line the length of which is four meters and there is this motor reducer etc. That's right there And actually the sorting chamber So here is it goes here And these are those are the gates and the boxes and after these web another box is where you can place them after being sorted so As the deadlines of the real project and my capstone didn't match I decided to have a mock-up of the device here and Sorry, and as I already know how the system would work. I just need to replace the actual Elements that I choose from for a bigger one with the smaller type of things and that was the Arduino Uno as the brain as the main part the TT motor was to replace the driver the Motor and the reducer and we have the smaller driver here So I also decided to make the unloader part and use the servo motor for it The power source and ABS as a main building material for a 3d printing during this design process I had When you are scaling down something or when you are making a mock-up There are slight changes in everything starting from the joints from the materials and one of the Problems that I arrived was that for the bigger part The conveyor belt was going to be made by someone who is doing that but for this size there was no one that could make it so I changed it with the resin and Made it by myself, so This is the rents of a design of The mock-up for the mock-up and now I can demonstrate how it works I'm not the best loader that so this is the load supposedly 500 kilograms of effort I moved it so It may be a little problem of calibration, but I hope it will work This is due to the inclination of this table and the calibration that I thought And I didn't do it beforehand That's it and if you have questions, please As much as I understood there is another bigger project that we're doing except the cap start Client that you told it's not a virtual one. So there's no no it's a real one. So if we shift from the prototype to the real one There are two questions. What is the control unit that you're going to use there like instead of are doing and then What are the types of? Like you have got their valves after the sorting machine that that will be opening and closing No, it's not that there is no need of both. You mean this part. Yeah, that part No, I am did this not a while this skate and I'm regulating sizes of it like this And for the first part it is still under the discussion, but it probably will be the Raspberry Pi industrial version or Maybe a simpler one because you can see everything is mechanical here I want so that that's the simplest one possible, but so we will be reliable I was assuming it's going to be with some camera or something that I just now realized it's all mechanical. So it's all mechanical Simple it is that's more likely Just just a question. Do you know what is a digital twin? No There is a concept of more complicated Machineries, you know that there, you know, it's CMS is mostly in this business with Nvidia University now, it's very interesting to read that you can actually build this Computer a digital twin of this and then launch it there and see how it works If there are any problems that you can fix it's simulation simulation for simulating It's even they're now simulating like the BMW factory the whole factory So that's very can be very interesting topic for you to read about I would see how much says from what scale it makes sense for you to go into the digital twins To have this virtually working and see where you have problems like heating pieces for example since it's mechanical where you have like, you know hot spots for Needs more attention I actually have done a mechanical simulation with solid works, but it is very limited It's only mechanical sometime that there is a part for the heating and etc. But it doesn't consider what kind of electronics do you use what kind of motors do is just mechanical and Maybe that's a better version