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Current time:0:00Total duration:2:49

Video transcript

okay so in this video we're going to show you how to attach the bottle caps or the wheels and the tires or the o-rings now the the wheels already have some small 1/16 inch holes drilled in them but they the the holes are just a little bit too small so we're going to take our screwdriver and make them just a slightly slightly a little bit bigger it's really important that you don't make the holes too much bigger because if you do they'll be sloppy and they won't fit snugly on the axles so we're gonna push those on and they should you should be pretty tough to push on you want to really give them a little bit of a shove there now one thing I want to point out in this video I did things somewhat out of order it's important to put the rings on the bottle caps before you connect them in this video I put the o-rings on afterwards and it's just a lot more work to do it that way it's a lot harder to get them on so put the o-rings on first then put the wheels on and you'll see how we connect the o-rings in just a second okay so what I'm doing here is I'm just trying to make sure that that wheel spins true so you can see that as it as I turn it it sort of wobbles and you want to keep keep adjusting it until it till it's almost perfectly smooth and then you want to do the same to the other side you'll put the wheel on of the bottle cap on you'll push it down alright and once it's in place you're gonna turn it and make sure that it spins very smooth and true and doesn't wobble okay once you've got that you can take it and turn it on an angle and you're gonna take your hot glue gun and you're gonna put about a dime-size blob of hot glue right on the center of the axle and you'll hold that perfectly up and down until the hot glue dries and then you'll do the same thing to the other side make sure you don't flip the bottle until the hot glue is completely dry it'll take about 2 or 3 minutes and the hot glue should turn from clear to milky okay now we're going to connect the o-rings or the tires to our bottle caps now like I said earlier it's a lot easier to connect these o-rings to the bottle caps before you attach the bottle caps to the axles so don't do it the way that I'm doing it here but in any case what you do is just you know in this case I'm checking to make sure that the hot glue is completely dry and then I'm trying to stretch the o-ring around the bottle cap and it's a really tight fit and that's actually a good thing it means that our tires aren't going to slip around and they should provide some good grip for us once we've got the over hang on you can see it's kind of tricky to get on especially with it mounts it in place if it's on the table it's a lot easier to get on because you can push down on the table really hard okay so that's good so we have one tire in place and then we'll we'll attach the other tire in the exact same way make sure everything is true and straight get the second tire put on will run the bot back and forth on the table to make sure that it is running smoothly and nothing is rubbing up against the the wheels and it should move very smoothly and we'll be ready for our next step