BURT'S JIGS a just for fun machining project, turning, milling & drilling. Lathe, mill & drill press

hi and welcome back to the shop today we're going to be doing a just for fun project my neighbor who's a great guy came over and asked me if i could do a little project for him and what he needs is to be able to drill 1 8 diameter holes on the end of some wooden dowels now a few years back he came to me with the same problem here's the dowel there's the one-eighth hole and here's what i made for him which is just basically a little jig so it fits over the dowel and it has a guide hole here that's about three quarters of an inch deep and well that guides the drill at the proper place for his dowel the problem now is he needs more because he's using different size dowels now and here are the four sizes that he's going to need to drill holes into and well i'm going to be making the same type of jig but i'm going to make him four of them and instead of using hex stock i'll be using square stock so first things first let's move over to the cut off bandsaw and cut our blank pieces or parts to length this stop is fixed it can't pivot out of the way and if it's fixed well there's a problem because once this part is cut it could jam between the blade and the stop and that quite often results in a broken blade so to avoid that we leave a gap but we want an accurate positioning of the part and well for that we use a shim so each time we position our part we use a shim to give us a gap so that we avoid jamming our part so so here are the four different sizes of dowels that we need to drill here's our four blank parts now let's head over to our lathe for surfacing and drilling so we're going to start by centering the part by eye now we're using a four jaw chuck because well obviously my part is square now we can go and get our dial indicator for the final centering you well there you go i can produce all the parts that way but it's a little finicky and while not everyone has a lathe so are there other ways of doing this yes there's many many other ways of producing this part but we'll look at two more we'll look at how to produce it on the milling machine and well how to produce it on the drill press on the mill if i have a properly aligned vise well i can side mill the end surfaces of my part quite easily all i have to do is insert the parts into the vise supported on a parallel so that i'm in the proper plane and then let the end overhang the end of the vise jaw now be careful if you're holding just on one side of a vise of this type you need something of the same width on the other end so that your jaw doesn't sideways and will not hold your part properly so we can set that up and we are here and now we'll take a look at a side milling operation now this is a real time saver because on the lathe we had to set up the part well eight times for the eight ends and that means i had to center the part eight times if i wanted to drill it after i surfaced it whereas on this setup well all i have to do is align the vise once all my surfaces after that will be square so here are the three parts that we just milled and well we're ready to start drilling this is a mill drill so we'll be drilling with this milling machine but i want to speed things up a little now i could take each part set it up in the vise edge find move over x y to the center and drill a hole but that would take quite a bit of work because well each part would have to be set up twice once on each end and that would imply also that we're going to have a lot of tool changes so to speed things up i'm going to use a v block now the v block is mounted in the vise and it's not going to come out of the device the part that i want to machine will be mounted in the v block and in this case well i've mounted the part that we already drilled now one end of that part had a 3 8 hole in it i've mounted or i've installed a 3 8 dowel pin in my drill chuck and i've aligned it with the x y axis so that both are aligned that means that the center axis of rotation of the tool is on the center of the hole and what i can do now is lock everything in place because that v block and the part that's mounted in it will always come back to the same spot i can change parts and i won't have to re-measure anything so so there four 1 8 of an inch holes and well four holes of different sizes to match the dowels in question so let's say we didn't have a lathe and we didn't have a mill can i still produce this part accurately well if all you have is a drill press the answer is yes you can in a fashion quite similar to what we did on the milling machine but there's a problem there there's no x y axis on the table of this drill press and well it's locked solidly in place and well when we were on the mill we used a hole in the center of our first part to insert a pin into that was mounted in the spindle and with the x y axis i brought things into alignment and that was my center and i knew that relative to the v block well i would always come back to that center as long as i locked the table in that position well that's fine but i also said what if we didn't have a lathe well if we didn't have a lathe we can't have a part with a hole on center that doesn't mean we can't do something similar but instead of bringing the table to the pin we're going to bring the v block to the pin but without moving the table so we have our v block here that's floating it's loose on the table and i have in the spindle here in my drill chuck i have a countersink now the countersink isn't important but what is important is that the width of this countersink the body of the countersink is identical to the distance across flats of my square stock so if i hold the body of this countersink in my spindle and i lower it into the v and then i lean the v up onto it and lock that in place and then i fix or i attach the v block in that position to the table that'll mean that the center of this countersink will be positioned in the proper position for my square stock so if i put this part in there and i replace the countersink with a drill i'll be on center let's take a look at that it you you you well that was a fun little project so until we meet again have fun be safe it's very important and happy machining [Music] there you go

Channel: THATLAZYMACHINIST

Views: 7,724

Rating: 4.9269404 out of 5

Keywords: marc lecuyer, thatlazymachinist, machine shop basics, machining for beginners, MACHINE SHOP FOR DUMMIES, CUTTING METAL, CUTTING TOOLS, HOW TO MACHINE, introduction to machining, project for novice machinist, how to machine, metal cutting for dummies, online machine shop classes, introduction to metal lathe, engine lathe 101, machining 101, lathe for beginners, lathe project, telescoping taper attachment, that lazy machinist, the lazy machinist, mark lecuyer

Id: E2zTpncxB_8

Length: 20min 59sec (1259 seconds)

Published: Thu Jan 21 2021