Converting Delta Saw to Metal Cutting #489 p2 Gear Motor tubalcain

how do you once again as tubal-cain your youtube shucks teacher now this is video tips number 489 entitled converting your Delta 14-inch wood cutting bandsaw to a metal cutting saw by the gear motor method my continuing with this series was contingent on the success of the first video with this method using the pull gear and it was highly successful just beyond my my dreams I do not need to really do this for myself because I have the boys crane metal cutting saw but thousands of people have these wood cutting saws that are useless for cutting steel but can be converted by these three methods so probably no one will be able to do this because there's only three pull gear speed reducers known left to mankind however this particular conversion would work in other saws with it with the base in other words there's plenty of room down there for that probably not for the video I'm gonna show you right now or start right now because this is a gear right angle drive type motor and it's rather long and it would not fit in a cabinet like this perhaps an open cabinet but nevertheless I'm going to go ahead with this now you're probably saying I don't have one of these either and this came from a garage sale was five dollars and some man had it hooked up to a jury-rigged can crusher beer-can across er so I bought it for five blocks took threw away that's five years ago threw away the can crusher and thought well I'll have use for this sooner or later now that's a one-sixth horse motor 1725 rpm and it reduces it with the the gear right angled drive here and now that's a worm gear in there and that's thirty-six rpm so I think that's going to be just the speed I want and I can adjust a little bit one way or another by changing the pulley on this unit as well as the pulley here and of course I'm not going to use this it's great big 12 inch pulley because that would reduce it way too much no you can't go out and buy one of these new I would suspect that's a $500 Unova I'm not really sure but this is Boston gear the highest of quality and at the gears run in oil this unit runs very quietly at 36 rpm I got it running just to show you now let me go ahead and start up the bandsaw now this sounds like a threshing machine I lucked out in that this unit is already running in the correct rotation now as possible then it could be reversed I didn't bother to check but if it isn't easily reversible by just opening up the cover and changing some leads it could be done by somebody that understands some motors and it might be an internal thing that you would have to do or a motor shop but they can be reversed even if it doesn't appear to be opposite obvious this is a 110 volt single-phase motor the gearbox label does not tell the ratio but you can figure out the ratio of the ratio it is 36 to 1725 or 1750 whichever it is that's the ratio and that's a considerable gear reduction and did I say this is a worm gear and you need a worm gear to reduce the speed in a very compact unit like that if they're spur gears it's going to be a much larger more complicated unit and possibly with several gears the way it is inside of me here I'm not going to take this apart there is simply a worm and a worm gear here's another right angle gear drive without a motor and this particular one I wrote on the bottom is a 20 to one ratio notice that there is a an input on on either side so it would be easy to reverse the direction by by that method that's the input oh yeah the motor would be reversible so this unit could also be used and I have a bunch of this you know like I say there are dime a dozen I bought six of them recently for a dollar apiece and I don't know if I haven't even examined them because I don't really need to but these can be connected to an electric motor either by a pulley or direct motor input using a Lovejoy type of coupling if you know what I mean now I know what many of you are gonna say well I don't have a I don't have one of these and this wouldn't be cheap if you had to go out and buy that I don't know what it would be but it would be hundreds of dollars but they're probably a lot of them on the internet the only thing is if you set one of these up along with an electric motor it takes up quite a bit of room probably more than this unit so if there would be enough interest I would make yet a fourth video on this possibly setting this up on the Delta bandsaw as well no I know I'm I've talked a lot here on the introduction but I'm always trying to give people other possibilities and different ways of doing things without going to the jackshaft type of unit to which I will show you right now it was shown in the last video but let me check let me show that again since that's right here on the bench if you watch my last video you know that Tom Chris sent me this article well I was in the middle of making the video on a speed reducer and this was if you want to look it up Popular Mechanics February 1969 there were a lot of different versions but as I told you this takes up a lot of room and it requires a total of four pulleys and two belts and this particular application here is a double-ended shaft motor that is this motor has a shaft coming out of both ends there probably would be a lot of different ways of doing it but in examining this picture very closely I can see that this is the bottom casting of a Delta saw so I found that a little bit interesting I don't think I mentioned that in the last video let's get to work you need to refer to the previous video to see what the original setup here was from Delta with the two different pulleys on the guard and everything on there but in this video the first thing I'm going to do and I won't show this I'm going to take the gear the pull gear off and that belongs on my drill press so it'll go back on that eventually this has to come off and this big pulley that I just bought will come off and then I'm going to mount this this will be a simple setup compared to the other one I'm gonna mount this unit right here now I'll have to take this motor off and get it out of the way and I'm sure that I will have to drill some holes but if possible I'm simply gonna clamp this on here but I'm not sure I can clamp it and then I will play around with with pulleys and different ratios this is a three and a half inch pulley and if anything I will probably have to put a smaller pulley here then then this 4 inch sure but I'm gonna play around here and I'm working for getting a speed here on the bandsaw of a cutting speed of Oh anywhere between 150 and 300 now I realize after the last video that I do not have to get it down to 100 feet per minute but it can be considerably up up from that and still be quite successful and I do have a metal cutting blade mounted on this saw if you watch the last video so the next time you see me I will I will have this off and at least have this set in place and decide what I have to do in terms of pulleys and belts but I think we'll take a little field trip out to my garage right now and show you some other gear boxes that I have just to show you you know what it what is available and you will be able to find those of course in mcmaster-carr and Rangers and other industrial catalogues but if you're interested in doing this probably eBay or Craigslist I'm in the garage and I have three different gear boxes here and I just acquired it you probably saw it in a recent auction where I bought all of those motor controls you know these were like a dollar or two they had many more and I thought I some one were dripping with oil and I didn't want to load them this is made by Boston and Boston doesn't always tell the ratio I don't understand that now it's easy enough to figure it out if I want to take the time but I'm not in the mood during this video but they talk about input torque and output torque and things like that so and I don't care about that but anyway there's a there's a possibility that's kind of a big heavy one but it is Boston look at the size of that shaft now here's another Boston and so you can see that these are set up well yeah the first one with a sprocket on one on one side and maybe these are worn out but I'm sure they would work or what I'm talking about okay here - we got a sprocket and we got a variable pitch pulley and this is Boston gear and that it does tell the ratio here that is 40 40 to one reminds me of me and maybe a fella could make a dividing head out of that if he had a notion I don't and then finally here is a little gear box again it doesn't tell this is made in France so I have to ask Pierre when I when it comes I can't read the label and somebody vibrated some information you know with a vibrating pencil over the label and it's absolutely not legible but that's good that's a nice compact little one it would be very usable this is the input this is the output so naturally you can see that the worm is on this shaft and the worm gear on the other one this type of gear box always changes the direction by 90 degrees reminds me of a Fordson tractor you know those were a worm drive they said that this the operator sitting and the seat got so hot from the friction II could hardly stand to be on that's metal seat so there's a lot of friction here which means that they are inefficient I suppose I'm not a engineer but that's just what I read all right now back down to the basement and what this video is really all about I got a bit sidetracked as it is my want to do all right three hours has passed and well I went someplace so it wasn't them all all involved in working here but I did waste quite a bit of time and I do have it running right now but a good part of my time even though I have a hundreds of v-belts was spent flying through those be built I never did have any belts that were in the all 38 39 inch category so to overcome that short shortage and I got a lot of duplicates of some so that's kind of a pain I should throw some of them out put them on eBay but let me talk about the speed now now I have the motor and gearbox mounted temporarily there is one hole one bolt so it's not going anyplace it just happened to fit and vise grip on the other side now notice that I have a three and a half inch pulley on the gearbox remember that's 36 hour PM and I put a smaller one on the bandsaw shop I had trouble finding a small ones that have a 3/4 more and it needs to be a small one why a small one well in order to in fact speed it up a little bit now I'm trying I'm doing just the opposite of the previous video where I was trying to slow it down now I'm trying to speed it up a little bit because 36 rpm is actually to blame slow so my tachometers will not work again at that slowest speed so I did countdown and just the old-fashioned way with my full ex watch and came up with let me show you so the RPM there was 62 and that comes out to 250 feet per minute now I didn't bother calculating that because I'm sick of doing math I don't think anybody wants to see me do that anyway so I did indeed put the tachometer with the wheel right on the blade and came up with that 250 feet per minute which you know I'm not gonna fiddle around anymore that's just almost an ideal speed originally I wanted to be down to a hundred and in order to get it any lower and I don't intend to because now I know that 250 feet per minute is a pretty good speed but in order to get it lower I would have to use a larger pulley here and probably keep that size on there the problem with a small pulley there's not that much rap and as you know if you know anything about mechanical transmission that there's a good chance of a bleed of a belt slipping when you don't have much wrap that's just a standard a belt half inch wide it's not a cog belt or anything like that a chain would work on those two by the way if you had sprockets then oh then it wouldn't slip and the sprockets are pretty easy and fairly cheap to come by at farm stores yes I'm talking too much because I'm just trying to give you all kinds of different ideas and information here but notice how well this is a larger footprint that is the motor sticks out well by what 10 inches so now it's bigger than ever so with this type of gearbox work on your saw could that gearbox be mounted vertically inside of this cabinet and it definitely would fit and definitely would work the problem is the oil would it leak oil in that position that is with the motor down toward the floor and the gearbox up but there just plenty of room in there for that type of application if oil leakage was not a problem and I do not know I'll let you decide that if anybody was gonna go with that route the boy I see this is just a wonderful way to to reduce the speed to metal cutting so now I got really an ideal speed so I'm not gonna play around with any other belts or pulleys and I got I came up with all different ones there I had a little trouble finding three-quarter inch bore I guess I said that and no I do not intend to mount this temporarily because I'm this is just a experiment for your sake in fact now I'm still tethered to this motor because the cord goes into a switch and I didn't really feel like taking all of that off because I'm gonna put this back into the original woodworking position here when I'm done after the next video or two but this is what it looks like from the backside it would be relatively easy to make a guard for the belt maybe even adapt the one that I already have I'm not sure but you definitely would want to guard that belt because that'll chew your finger right off I do know several men that had lost fingers in belts it'll take them right off so don't mess around don't play around and you certainly don't want this where some child like Henry might walk behind the saw as I'm working on it and touch that and bam that would take your whole hand Isles hand off for that matter so you can't be safe enough around belts pulleys gears chains and sprockets I think you'll all agree with me on that you know what I think I will show you the the speed it's interesting if you've never seen at the common Oh like this it will take a direct reading with the wheel and feet per minute and that is you read scale on the inside there so you can see it's between 20 and 30 but we have to add a zero on there so that instead of it being 25 it is 250 feet per minute blade speed alright I've got quite a mess here but I'm gonna go ahead off-camera and turn the saw 180 degrees and we'll take some sample cuts to see how this cuts and we'll this belt slip on that small pulley that is really the only question other than that I know it's gonna solid just fine I had the saw turned around took a cut and it was a total abject failure in some ways as I predicted and what happened the belt slipped on the small pulley why because there's no wrap there also I the first thing I will do is to attempt to tighten this little a little bit more but you know these old belts and that is quite loose so I'm gonna tighten it up which is kind of hard to do but I'll use a pry bar and the pry and there but those old belts have lost their suppleness if you know what I mean they're relatively stiff so I will put a pry bar in there and attempt to put a lot more pressure on there but let me show you what happened you know I'll just keep the cameras right on that shaft well let me turn it off and then back on and then I'm gonna take a cut and watch that slip alright watch you can see the belt is too loose so net effect is toulouse-lautrec let me tighten it up and see what happens I'll see you in five minutes all right I tighten it up it's later the drum any tighter now you know it's really hard on bearings so watch it now [Music] well sure doesn't look tight you see the belt want to ride up and over unless I just loosened a little bit let me try one more time and I'm not going to bother with putting dressing on there I just don't think that'll do the job here's a pop quiz for you what is an expert well the answer is an expert is someone that's more than 50 miles from the home now remember I'm not an expert at all I'm just 50 miles from your house iron I'm not any smarter than you are or any of my viewers but here's what I'm gonna do now I definitely have to have a larger pulley here so that it won't slip but if I put a larger one this is the original for rent if I put that on there that's larger than this one or about the same yes yes larger this is three and a half so what will happen there now is I'm going to slow it down even more I'll be down to thirty rpm at this point and I never really dreamed that I would want to speed it up because I'll like have a ranked about and in my videos get that speed down get that speed down for metal cutting well now I've I'm quite the reverse I want it just a little bit faster so in order to achieve that and this will take me an hour and then I'll be back I think I'll put the four inch or on the main shaft and then I need that's a three quarter these are both three quarter shafts I do not have that many pulleys in 3/4 but I do have this big step pulley so I can play around put that on this if it'll fit that's a question will it fit I might even have it on backwards like that so I have a choice here of a of a three four five and six so I would like to possibly use the five here and the four there if I can find a belt I totally I'm having a lot of trouble finding belts but that's gonna be a longer belt and I have a lot of belts in the longer size just that I have to go into that hot attic now it's quite hot again today and dig around I sure brought that whole box down here but I look too big a chore alright I will see you in one hour it's 45 minutes later and I'm so sick of rooting through v-belts I should quit for the day but notice several changes now first of all to in order to accommodate this six inch pulley here I had to mount the whole unit here on a three quarter inch bore no big deal but I now have it held and plantain with two vice grips in one bolt and since that's a four inch pulley you can't quite see it there where the yardstick is and it's a four inch pulley here we have no reduction at all so if this is running at thirty-six rpm which is almost exactly 100 feet per minute [Music] isn't it funny that that was my target in the last video but now it seems so slow but I think I'll go ahead and cut a few pieces and see if that's satisfactory it's not what I need to do here is to move this unit over and use the large groove here and the this but it'll take a longer belt and try that out but let's see first of all if this belt is going to slip on either one of the shoes I'm sweating quarter-inch steel you can't see it but I'll cook quite a load on it watch motorboat [Music] well I cut that apart that wasn't much but you can see that there was no belt slippage so that's pretty good take a look at the set up in this direction and if it was a setup that I wanted to complete what I would do is drill four holes to mount this unit and I would have to keep that piece of wood under there it it galls me to use wood and that's gonna get oil soaked and ugly I just don't like using wood if this was a permanent situation I'd use either a steel or aluminum plate under there otherwise I'd be ashamed of it in case you have not watched the last video this is a metal cutting blade bought from KBC tools and it's a starett 3/8 wide 25 thick 14 teeth per inch and regular sets let me cut through some tape and steel here and let's see what happens and there is no stalling I was pressing quite hard now it's putting slows because the the speed is so slow so let me try some quarter-inch stop this is 1/4 inch this is 3/4 thick steel I was able to stall it and it's cutting so slowly at a hundred feet per minute you know that was my goal I'm not satisfied I will see if I can speed this up just a little bit this is my final setup I'm on the five inch pulley here that's the four inch pulley it's a forty three inch belt this was the easiest setup I made that only took me a couple minutes I must be getting good but that gives me 45 rpm on the main shaft just like an old record and about 71 70 feet permit of blade passing through the work that almost seems like an ideal size and with the enlarger pulleys here I just feel that there's less chance of belts and slippage now there's some point where the blade may slip on the tires on the bandsaw wheel because those are very those are 40 year old tires that are relatively hard probably but you know that can happen I'm not saying that it will or did let's saw some mother you know what this motor is fairly warm I mean I can hang on to it but I'm just wondering why it's that warm considering that I haven't really done that much cutting but looking at the the meter here well it's really only a hundred and fourteen degrees that's Fahrenheit alright back to the business at hand remember that's our speed [Music] I was able to stall it I'm not happy quarter-inch steel [Music] now the the belt is slipping I look back there as it is that it's slipping on the 4-inch shiny pulley that's on the main shaft that pulley is the original pulley that just seems like it's scissors it's not gripping now I put some belt dressing on there that did not help one bit so I have to quit for the day and in discouragement so I'll see you tomorrow I'm gonna try to find a larger pulley I might have to buy one to put onto that main shaft I'm thinking something like six-inch I'll show you that shoe tomorrow all day alright welcome back it's a new day and I'm in a little bit better mood so I've changed the pulleys now remember I'm still suffering from belt slippage so I've got a 5 inch pulley here and a 5 inch pulley here so really that's a one to one so the RPM is 36 the feet per minute is 130 and I'm still having trouble by the way this pulley is badly bent because it's used a little slower than I want and I'm having a heck of a time here getting the belt tight enough I just don't have a good place here for leverage and there are no slots remember I'm using clamps here so it it's quite cumbersome because this is just a temporary setup so I'll do a little cutting but I expect it to be slipping what I have finally determined that I need to do here probably is use the six inch pulley here and I would like to have about a 10 inch pulley here but I'm not gonna buy another one but I might put that 12 inch pulley on if I have belts long enough to accommodate that so let me do a little cutting at this speed and that really that may be enough for this video I expected when I started this video be a very short video 5 minutes because there's just nothing to it but it has turned out to be the longest one that is quarter-inch steel and it did cut it I stalled it or not stalled it the belt slipped once there so I had to go a little bit easier but that means it's certainly gonna slip on my thicker metal but it probably is okay you know even my other boy screaming bandsaw sometimes half the baby dick mother I know this looks outrageous but it isn't I'm about done with this video but now with that thirty-six rpm on the gearbox and a 12-inch pulley and a six inch pulley that gives me 72 RPM or 275 cutting feet per minute and that's about where I wanted to be and this has been a struggle and I tell you it sure does help when you have a lot of belts and like yeah I got consecutive ones 56 58 57 and 55 with what I got out of there but at least it doesn't slip and the whole idea here I have two large toys with plenty of wrap and there isn't the tendency to slip I do think that my very new old stock ancient v-belts have lost their gripping power though I may be imagining that I'm not real sure that any one of the comments if you think that could be the case so now I'll turn the Machine around and and make just a couple cuts and conclude the video so yeah this is outrageous it takes up a lot of space I would be hard to put a guard on there and they're just absolutely no way that this monstrosity would fit inside of that cabinet so the video that I thought would be the easiest than the job of setting this up was the would be if it's not this I spent a lot of time on this and well it is an experiment but also to give options to people out in you to blame again there's the speeds pay no attention to this familiar this is again a thin steel not the fastest and I was able to stall it just a little bit there did you notice that cause off a slip but again I told you I do that on my boys screen and if we just have to remember I guess that this is not a do all this is not a girl but this is just a wood cutting inexpensive bandsaw really built to do this job quarter-inch hot rolled steel wear your safety glasses now do you know what I really am going to discourage the use of this I thought this would just be the best thing since sliced bread but in using one of these for for the setup there would be two belts involved and with two belts especially with these smaller pulleys there's just four pulleys on which two belts could possibly slip and unless used bicycle chain and sprockets and all that I just don't think this this would work and it would take up too much room unless even if the motor was mounted directly here with a Lovejoy coupling that you've got kind of a bulky outfit that would eliminate one belt though if the motor went right into here but of course the height isn't gonna be right so it would have to be built up so I think I was delusional and and suggesting that earlier using a right angle drive gearbox for this application so forget that now in the next video the follow up video I'll be installing the DC motor and control on this saw and now I don't have such high hopes for this because now I'm back to using a belts and pulleys and all that and I just wonder if first of all that will have the torque needed but this whole job wasn't quite as easy as I thought it would be and so far it looked like the the pole gear was was the best option but we'll see in the next video well this concludes an incredibly long video to show you how to use this right angle drive motor to slow down and convert rockwell delta 14-inch wood cutting bandsaw into a metal saw metal cutting saw hope you liked it hope you learned something you know I learned a lot on this video matter of fact I bet any money that I learned more by making this video than what you will learn by watching it if you like my videos give me a thumbs up and I'll see you in that next one and be sure and watch the last one as well you

Channel: mrpete222

Views: 31,998

Rating: 4.9388704 out of 5

Keywords: delta rockwell bandsaw, delta 14 band saw

Id: v8URZShJMyY

Length: 36min 27sec (2187 seconds)

Published: Sat Dec 15 2018