 Okay, hi everyone, glad to be back here again. So today I'll be talking about smart trails, it is quite a different, I would like to say like a different pack. Yeah and I think I started this project about one year ago but then it has been kind of like without this talk I wouldn't have made much progress on it because it's one of my other abandoned or like you know like dormant project. So can I have a shot of hands like how many of you use hand drills like this? Okay how many of you use this like at least once a month? How many of you use this on a weekly basis or daily basis? Oh yeah nice. So yeah I use hand drills like pretty much on a weekly basis I feel like I work on stuff, some minor woodworking, I've been doing like minor woodworking for about 10 years. So you know when I first started it was like okay I'm not really, I don't really know how to drill straight right, sometimes you drill at an angle your hole just like come out of your material, you screw up multiple times or holes are not accurate right. So I was, I'm thinking like how can we improve this school you know over years in like 30 years and battery operated drill around for a really long time and a couple of problems right, for example like when you have a drill okay sometimes you want to drill a blind hole but you don't really know how deep you go through some of you may use a marker to mark on your drill bit okay I want to drill up to like one cm or one inch some of you may put a piece of tape around it right to limit kind of a limit where you want to drill to. Another problem is that if you want to drill square to the surface, let's say you want to be perfectly perpendicular, what do you do, you sometimes you get like a square trying to like you know measure, try to like align yourself through experience, you might be more proficient at getting it really square, really straight but basically you're a new user, you go there you try to drill something because you're maybe you're you know fix up some new furniture that you get from Kaohao right and then there's some problems with it and yeah you make screw up once in a while. The last one is let's say you want to drill something lengthwise, now this is probably the hardest thing, imagine you have a piece of wood and you want to drill along the very narrow section and you want to put a hole that is maybe like five six inches half a feet through it, I think one of those before without a bench drill and it was pretty terrible, it was a terrible experience. So these are kind of some of the hard columns you have with a hand drill, of course you have other problems, I'll talk about some potential solutions later right, so what are some of the solutions to these problems, okay first one is of course experience, after 10 years you probably can kind of drill straight right but of course not everyone has the luxury if you are doing things like you know once a month or so you don't really are not able to gather enough experience right you can yeah so with less experience you have a high error rate with more experience you have a low error rate but you still screw up sometimes right there's no full proof way of doing it, of course if you are too sleepy you screw up more everything. So a couple of some things you can do, you can buy jigs okay you have a j you know can make sure your drill is straight enough but you kind of need experience to use it right, of course you can get a better tool, you can get a bench drill or standing drill but I don't think many of us have the luxury and space and this is really heavy, is this a lie in the video? Sorry I mean you can get you can put it there, I'm not too sure but I'm sure some people have tried it before, the only problem is there is really a situation now you tell me do it like top down and let's say you want to fix up a piece of furniture you can't really use this right so this is the thing that came on Kickstarter two years ago and very much seen this before called the X drill, so this was two years ago it's advertised as a smart drill and that size that it cost like $499 Canadian dollars and until now it still has not shit yet right fortunately that time I was sour because like oh no I missed this Kickstarter but fortunately I missed it right um it also has other bills and whistles like oh yeah it's Bluetooth, it has Wi-Fi, I don't know why but it has all kinds of features but but I really like the concept okay later I'll talk I'll talk more why why I like the concept now it has basically um I identified key features right uh the first thing is a digital bubble now does anyone know what a bubble is like a leveling bubble right it's pretty good yeah it's very level but for a bubble it's usually on two axes okay um this thing basically it has a digital bubble so that you know where your drill is perfectly straight for reference to gravity of course um and the second thing is that it has a laser distance measurement tool like a bottom it's just like a little like laser it can measure a distance of like how far your drill is from your surface now the downside about this you know even though you spend like $499 Canadian pesos on it it's not a D-Wap it's not a Makita maybe after one year it breaks down my my D-Wap drill lasted me 10 years and it's still running strong I went through like four batteries and the drill is not there yet so so yeah I mean I'm sort of saw you really like a Makita full maybe saw you I think there are other brands over here I forgot the names but I think these are two major brands and so I think I think myself my my sort of Kickstarter is like can we do something that can be used on other drills out there your own drill and your favorite drill right and the answer is others this is what others have done I did some research okay like has anyone done this before and okay some people they will glue a spirit of holding to the end of the drill others um try to duct tape a ultrasound distance sensor right yes you can do that if you want um so I was like prototyping about one year ago and now I was thinking okay why not use like some of the shell things to achieve a similar result because this is really rough because I didn't have much time to like make it really polished but this is just like a rough prototype right and key idea is that I hope that this can be open source now in order for this to really work is that the folks using different models of drills will need to create 3D printed 3D printed frames you know for you to attach sensors and of course your device onto your drill right um there may be some folks in Makita who create a 3D printed mount connect some of you need to work with a 3D printed mount for that and ideally this is shared in a central open source repository so that anyone with the same tool you get access to a 3D printer you print out this mount right the designs are also based on off the shelf components that is a I really like this sensor is a uh they call it the YL sorry a VL53L0 is a time of flight distance sensor now the difference we did a time like something might have experience with other distance sensors like ultrasound or infrared the nice thing about time of flight is that it does not depend on the intensity of infrared reflection it depends on the um how fast light travels to hit the surface so what happens is that depending uh it does not depend on you know like sorry the sensitivity or the precision is much higher I think this sensor goes down to 0.25 millimeters and so okay so back to the the key idea is that by using off the shelf um electrical parts and modules we would like anyone should be able to purchase these same parts and create what they want on their own drills yeah but this is basically a M5 M5 core tool it is um yeah it's for one of those uh search and companies internally it is a ESP32 for those folks who are familiar ESP32 Arduino IDE is really easy to onboard right and basically this code is not just done up in like a couple of days yeah there's an internal um IMU which is like a cerometer that's how I get managed to get the like the digital spirit uh in there okay so this uh a front view um later I'll pass this around but this is a front view where the distance sensor is mounted of course we are open to exploring what other locations you can mount it on okay and behind is the view of the digital spirit level uh implement a simple zero in function so that you can basically like you know you point your drill down right and then you can zero it and and so if your drill is like tilted left or right a bit too much the spirit level will vibrate otherwise if it's somewhere in middle you'll be green yeah so uh couple of problems at lessons learn right number one is that uh when I first started this project I was kind of stuck because I was trying I was assuming that it needs to be a full-fledged IMU but for those of you who are familiar IMU it means that it integrates a cerometer a gyroscope as well as a magnetometer right and the downside what I realized is that gyros suck okay the gyros just suck right and because you run integration over time the error rate on the on the gyros will just accumulate you try to correct it by using many magnetometers right but the downside is that magnetometers need um calibration per location so that's why sometimes androids house you sweep your phone in the figure of eight right it seems stupid but it works right that's the way to calibrate your little sensor inside but the downside is that you know your drill has a big motor in it and it has a big magnet so your magnetometer will not work very well when it's right inside your drill so that's the downside so okay I scrapped the idea I got rid of the gyro magnetometer I just used purely a what do you call it a cerometer because I lose I only have my two access to work with so I lose the other access um yeah and other things that I mean try to get an accurate angle like uh let's say pointing a drill okay so it means like my pro time over here let's say you want to point it at a wall and I'm trying to figure out like the angle whether you are tilted to high or too low um this is a hard problem because just how would I say the accelerometer only allows me to measure the angles of tilt when the drill is pointed down right which means that if I tilt left right forward backward yes I can I know that you can tell me this error right but my drill is like this always on the air try to tilt left and right the accelerometer cannot give me data on the error right so I guess this is the open question of how we can solve that problem where your drill is like press flat against the wall right and we just ignore what happens um so a future work well basically more 3d printed mounts for various types of tools out there um one thing I was thinking about is that hey you know we don't really it's not just constraint to the drill if some of you use jigsaw right you want to use a jigsaw to cut the straight line how many you cut a wobbly line when you're trying to uh cut a panel yeah oscillating tool uh if you're trying to use oscillating tool to like do small precision work to try to measure distance there's no distance measure you try to put a ruler beside it it's kind of you know just wish of those tools were smarter as well impact driver is similar to a drill but it basically I'll say in tldr has more talk um so if your your angle of attack with the screw is incorrect your screw will just like the bowhead will not be perpendicular to your work surface yeah um and if I could have more distance sensors on drill what happens is that okay I could measure the distance of the drill bit from the floor from the walls the reference point etc okay so I think the question that everyone is like do you think such improvements will be useful for your tools yeah so if such things like this will you like 3d print you know try to add these some of the tools yeah any questions yes okay so um okay so this will be mostly of calibration I mean this I kind of like calibrated by sites right but in reality if you have a 3d print for this particular drill you would be able to you know like screw on your mount and the sensor would be integrated into your print into your printed mount right ideally you have a mount I'm just like gluing it onto the drill over here so you know it's kind of ghetto but yeah um so generally like if you if you do this you will need to basically have a you know accurate uh a rather reliable 3d printer I mean a 3d printer is totally uncalibrated you're not going to get anywhere yeah I'm just going to pass this around uh try not to it's just kind of maxed out the quad rule so yeah yes so can you come to the new invention for all such detection but that is for example if I want to drill the third hole that is actually turning the drill off like you can tell that similar to I mean a turning the drill off 20 years old we added a little bit too much so this has nothing like it does not integrate electronics on the drill so you would have to like read you know read it out and hopefully yeah definitely more work you want those teachers okay so one thing that we know that they are usually making tools for construction people right um construction people have more advanced tools they have more cable they carry more stuff with them and number two is that there are probably more roughs so if something like a touch screen they're likely to damage it so on us you have I mean I'm sure someone is doing some R&D on it but I don't think it is something that will hit mainstream that's so so maybe the necessity to be really perpendicular to is not there is that why you're saying that yeah there are other tools like you can external laser level you know if you have those those things that you wouldn't need on your drill yourself but for small timers let's say a obvious user you're not going to spend like 300 dollars on a laser level you're not going to you just hope that uh instead of using another hand tool you just hope that your one and only investments in a hand drill has as more features in it like a home user you I say you use a laptop versus a someone who uses a workstation at work but your workstation at work is like so powerful and at work you have the ability to get so much more devices but I hope you just want something like one on one laptop or one PC right I think it has a different target So the laser tool one sensor is used for the the split level you know right one sensor no it's just a SRO meter so it kind of is internal tool to be uh to that module itself I think it's a something say 686 yeah we connect one more servo meter tool differentiate the game you're saying right one plane only go but you can shoot the plane and shoot the reading thing yeah you can definitely add more sensors but again little more complexity and more force yeah having a lot of adding another to be able to be on the opposite side of the axis and use the offset to uh end of it stay very well yeah stay there is that playing possible I only have one in the quite a time which is about 10 bucks yeah there is the M5 step or module that is about 30 bucks I really like those modules because if you use a ESC32 on its own it's kind of painful you know you have to corner everything else with it I like this module because it's just 30 bucks and has all is really great for prototyping yeah there are four of the kind of type 5 modules and then you can do a yeah if you have four of those then you can definitely like put them around your drill bit like you can kind of like you know ensure that you are perpendicular to the surface or let's say you want a 45 you want a 25 degree angle yourself to a reading zero way and okay uh many more questions comments otherwise sometime in future I will put up the online repository and I need like to make a whole series