Drilling Holes on Angled and Rounded Surfaces

the guys you'll buy here welcome back to the shop you know I had a viewer request for a video on how to drill a hole on an angled surface and when I started thinking about it you know there's a technique to do it but it's not just for angled surfaces it can be for circular surfaces too or a radial service so if you're trying to drill a hole on a rampart or an angle part if you drill hits it your drill is going to go rule it's going to do one of these things same thing on a radius it's going to want to walk off there's an easy solution to it it's rather quick sometimes it leaves behind a trace element of exactly how you did it so if you do this make sure that the application is favorable for the little detail that it may lead by let's take a walk out the shop and I'll show you how to do it okay guys for sake of this demonstration I'm going to use a piece 1/2 inch by 1 inch 17 for stainless and I've got it squeezed in device at approximately a 45 degree angle the angle for this demonstration really isn't critical because any angle is going to influence a drill in a way that you don't want it to be influenced so if we were to come down straight on this surface with the drill right now it probably wouldn't end up well when the drill hits this surface it's going to hit the surface and it's going to want to follow the surface plus it's going to beat the edges off the drill and you're going to end up in the doghouse before you even start the best way to accomplish what you're trying to accomplish here is to put an end milling before you use the drill I'm using a quarter inch end mill because I'm going to drill a quarter inch hole now like I said before you're not always going to find an end mill that's going to give you the pilot counterbore that you're looking for so check and see what's allowable and leave it at that smug everything up because anytime you have their regular surfaces coming into contact you're going to have some dancing going on I want to bring my end built down so it's just about touching that part I'm going to set the stop on my quill here so this comes down to a specific light every time my old girl here she rattles a little bit and unless you live around the corner and you want to come in here and fix this machine for free be kind with the comments [Music] sequentially I'm going to come up with the table at about ten or fifteen thousands at a time I'm going to come back down with the end mill and I'm going to continue that operation until I have a full footprint now if you're allowed to you can also sweep in from the side to your location but it's not going to give you a true track when you look down on top of it it's going to be more of a doghouse shape so if you need a hole follow this method here [Music] it's also very important to note that whatever endmill you select make sure it's a center cutting end mill or you're going to have a protrusion at the bottom of your pocket [Music] [Music] [Music] [Music] by maintaining a gentle pressure a downward pressure on your quill handle as you come up with the table it will take the bounce out of the tool to the material that you're going to find like if you ever tried to drill on a top of a round part as it's going into everything's bouncing around and going crazy well if you come up with the table you can eliminate that bounce as well I'm going to move off center and I'm going to put a center drill in there now I'm cheating and using a quarter inch tool on a quarter inch out but if you have to do this try not to do that that's no good for the corners of the end though but I am NOT a big fan of putting an end mill in a drill chuck ever because it's not intended for it and if you want to ruin a perfectly good Chuck just go ahead and stick and endl in it but if I'm going to use a collet or an end mill I'm going to use it in a comment not in a drill chuck so don't do that do it if you can't get around it any other way but I wouldn't endorse it okay I am back on location they've turned it down to a lower speed [Applause] rattles in low gear done you have the bottom of the hole successfully interval pop you're drilling proceed I'm going to leave it in low gear so I don't burn off the drill the beauty of a digital readout you can move all over the place and not worry about having a read indicating I think it's important to note that when this drill breaks through the backside of the part if this is a through-hole that you're looking to create its going to start breaking through on only one side of a hole at a time and you will feel that bounce going back up this up the drill into the handle you'll feel everything knocking around take your time as you break through or at that point the drill could start to walk because of the uneven influence on the flute there you go guys forty five-degree whole seventeen four stainless this cake put a stick a piece of round stock in here and do the same thing on a pitch-around sack dares to show you that it can be done and it's not going to matter if it's round flat paper whatever this technique will work let's make sure that's a focus we have there we go that's better and I'm going to walk drastically off-center here worst-case scenario that's about as far off centers you can get operation to the edge here we go same process skip post stop up the rest of the work with a combined table crank and handle combination [Music] yes a little hot many of the shops I've ever worked in anytime somebody drops something because it's hot we refer to it as heavy it just sounds better back on location digital readout is a wonderful thing if you don't have one [Applause] I'm sure a lot of you are thinking a quiet machine is a beautiful thing - all right so my since I use this machine all the time it's really tough to have it down for maintenance believe me it's on my list and if anybody knows exactly what that is it's knocking in there by all means post it in the comment line if it's something that's easy to fix and I'm just not fixing it I'm gonna kick myself so if you know what that knocking is put it in the comment line as your drill breaks through the backside make sure your spender your quill lock is gently dragging on the quill so that there is some resistance and that will help you with the bounce that you're going to encounter as well okay there you go not center hole that is very off-center and reposition those guys so you can get a better look now if you get to use an end mill that's a little bit bigger than the hole you want you're going to end up with a line right where it cleans up naturally because it's the transition between the two diameters so if that's okay since the top the elliptical section of that hole is basically worthless anyway then go ahead and do it but end mill center drill drill straight through it's a great way to do it use a combination of table and quill moves keep a light drag on your quill lock at all times and this is a piece of cake this particular operation if you take your time with your start and take your time at the end you will get a nice clean straight hole on location you can see how far off Center that one was now do be careful when you break through on the backside of your part chances are you're going to get a little ugly inside of your hole somewhere in this area because this is breaking through first the drill is going to walk out and you're going to have a little bump in there so if you can't follow it up with a reamer or an end mill please be aware that whatever you're trying to stick through there may encounter that bump it's not uncommon and it is almost impossible to avoid if you're not reaming afterwards but that's how it's done guys and mill center drill drill take your time I hope you got something out of this and hope you got something you can use it's a good trick commonly used and now it's your trick it's all I got well that's a pretty easy fix you won't always find an envelope eyelet pocket that you're looking for so that small conical trace that you may see and if you have a piece with an angled hole in it that you may have purchased for you get a chance to run across one in the field take a look at it see if you can see the little trace ring I'll bet you that's how they did it anyway check with the engineer or check with the application make sure that's acceptable and jump because it's an end mill it doesn't mean that's not going to walk so take your time feather it in and out come up at the table feather it in and out make sure that you take your time on that and your final feature should be just fine so that's all I got that's how easy it is until next time joepie advanced innovations Austin Texas about

Channel: Joe Pieczynski

Views: 197,247

Rating: 4.926126 out of 5

Keywords: joe pie, joe pieczynski, advanced innovations, advanced innovations llc, shop tricks, drilling, angle holes, drilling on angled surfaces, drilling offset holes, drilling tricks, drilling hacks, shop hacks, machine shop, shop tutorials, how to stop drills from walking, drilling on round stock, drilling on slanted surfaces

Id: e3dPUvgKRBU

Length: 18min 57sec (1137 seconds)

Published: Wed Feb 08 2017