Scroll Chuck Jaws 101 for Woodturning

this video I'm going to talk about Chuck jaws I'm going to show you a variety of Chuck jaws and show you what they're especially good for I'm going to actually demonstrate with wood on on on some of them most of what I'm going to say is going to apply to lots of different manufacturers Chuck jaws but specifically I'm going to be using record power jaws because record power was kind enough to to send me a complete set of their their jaws to to evaluate and use in this video hi all my name is Mike piece and I'm passionate about wood turning and I'm here to share with you tips tricks and techniques to help you become a better wood turner this is something you're interested in please consider hitting the subscribe button in the notification bell so you won't miss future videos when I start turning about twelve years ago on a jet mini lathe the it came with a soup Technic tool supernova Chuck with about six sets of Jaws and frankly I didn't have clue what they're for and I invited a would turn a friend of mine over to help me sort it out in looking at those looking back on that and those jaws that that individual had I'm thinking he had more money than good sense and I want to share some of this information way so to help you make some wise decisions on your Chuck purchases if you're a novice turner just getting started follow this video away and feel free to come back and busy and visit it after you've had some experience and you're reaching that point of turning a wide variety of projects or you're concentrating on large projects and smaller projects in which time the time will come when you want to consider adding gear supplementing your normal jaws with something diff disclaimer wrecker power was kind enough to send me their full complete comprehensive set of jaws without cost for me to using this this video without that I wouldn't be able to do this video so I appreciate that from record power I believe they're there Chuck lineup will meet the needs of any owner of record power SC 3 or SC 4 Chuck I did video reviews of both of those you'll find the link at the end of this this video but I also want to mention that these Chuck's are fully interchangeable with Sorby patriot and technic tool which is very nice feature sometimes cheaper what I call second-tier Chuck manufacturers was will target target to hobbyist woodturner with with with cheaper cheaper jaws cheaper cheaper chucks that might come with several sets of Jaws they look like they're throwing the jaws in for free but there is no free lunch you pay you get what you pay for in quality costs unfortunately sometimes those jaws sets are all they're going to have you won't have any other options they might have design that the design of those particular jaws are not what you're going to need they also may come with say serrated edges and you've come to discover that you'd prefer to have have adult dovetail but you might not have options and they're typically cheaper because they have more quality alloys and unless quality control and after a while with lower quality alloys the key moving parts such as those rings or pinions will start to wear and you'll start getting a lot of slop and I've heard this from a lot of a lot of hobbyists would woodturners if you don't use it much they might be just fine in general you use bigger jaws for bigger projects and smaller jaws for smaller projects and there are specialty jaws for special projects usually there if there is an overlap so there's an opportunity to use one one set when another set might be better if you find yourself turning a lot in a particular area that's when you might want to consider getting getting that that that special set of jaws so as I talk about these jaws I'm going to share with you some of the some my thoughts and and the features of the jaws based on my experience yours parents may be completely different as as is the type of turning you're doing so like everything else take take this with a certain grain of salt and make sure you apply it to your situation so this is the 100 millimeter dovetail and deep gripper jaws by record power it's virtually identical to the power grip jaws that Nova Nova sells and it'll handle this heavy block and this block is approximately eight inches across of wet wood very very heavy you couldn't possibly hold this on your 50 millimeter jaw set you'll notice though to get that secure hold you've got to make a deeper 10 it also has a dovetail at the end here so I've cut a dovetail and had a longer extension on this picot so you've got you got some real strength here from this longer notice though I don't have it bottomed out otherwise that would cause that would be a dangerous way to chuck this thing because you could any leverage off the bottom would would have a tendency to pull this out under stress because of these deep 100 millimeter depth you can actually grip squares with the corners between the Chuck jaws as long as it doesn't extend too far out it's not my preferred way chucking I prefer to tenon but it's faster to actually chuck it like this put it round the end off make it round put a tenant on it it would be and then reverse it then it would be to actually turn it round between centers and put a tendon on it these jaws of matter on the SC form one of the things that I really like about these for it comes with this wrench if it ever gets stuck a little bit boy you just give it a pop and it comes right loose which is very handy so here's the 100 millimeter gripper jaws on the SC 4 and I contrast those with the larger 130 millimeter jaws on the SC 3 and incidentally they measure the outside diameter with it opened about an eighth of an inch because that's the optimum size we get a perfect circle because when these are machined on a CNC machine they then come along and cut these into quarters so you remove a little bit of steel so that was the original circle so this is 130 millimeter this is a 100 millimeter now for an awful lot of applications these are roughly comparable because they're both fairly large size chucks but you can see this one will hold that very heavy longer blank with a longer tenon then this one would even though this is a larger chunk because the depth is not that deep on the other hand if we're dealing with large bowls for example either one of these chucks would safely hold this 16 inch Bowl or this 14 inch ruff-ruff platter however if you're dealing with primarily large items like those bowls and platters this is probably the stronger chunk because it's got a longer gripping area on the inside in the outside on the other hand although this is this is going to be very good for large stuff it because of the deeper deeper jaws it provides you some additional functionality although technically because it'll hold a smaller tenon and a smaller recess it probably not it is not quite as strong as the very large items this one you should be able to go up to a 30-inch 30 inch platter but they will both hold very large stock that you couldn't possibly safely hold on your 50 millimeter Jaws jaws I want to talk about the 75 millimeter heavy bowl and gripper jaws I've mounted a couple of these this is the 130 millimeter just to contrast it and this is with the 1 inch deep gripper jaws we looked at and then I've shown the standard jaws you can see with a 75 millimeter they're very very beefy they have the screw right through the middle that gives it extraordinary strength and as we know most of our chucking power comes from the flat from the bowl resting against registering against this surface and this is a very wide surface much stronger than this now in terms of a spigot it'll grab a spigot very similar to the standard jaws but in expansion mode it'll go about about 30 millimetres more than an inch larger so you've got a very very strong hold so if you're doing a lot of bowls in the tender I'd say maybe 16 inch range this is an excellent choice you can also see it's dovetailed but it's got serrations down here so similar to the way we held a great big blank here if you were doing a smaller hollow form or a vase or something you would use a longer tenon and you could get a very very strong grip with these just not quite as strong as you could with this larger gripper set so it just a lot of it really depends on what do you do most and there's always going to be some compromise now we're going to look at the long nose jaws these are what I'd call a special-purpose Chuck they're very deep they've got several it's got several nice capabilities one is you can put a very deep tin in it so if you have if you turn a lot of long pieces of green wood maybe you're turning green goblets or something of that nature this works great because it has it with the separations and the long long tenon you can get a very tenacious grip on that on that but the main purpose I would say is primarily it because of the length of the jaws is being able to get a piece of work away from away from the spinning Chuck let's say we're working on the top of this this box lid this might be an example you could actually you know you can work on this area here without worrying about getting into the Chuck body another example might be if you're working on a bowl where you're chucking the end inside or rather you're working it from this way let's do it this way you've got more room to get behind the bowl to make this this cut then you would with a normal set of jaws so if that's the type of cut and the way you approach a bowl this could be very handy frankly I have not found for me personally this hasn't been as useful Chuck and I had a set of technical long nose jaws at virtually identical for years I've used it a few times that have come in handy but it's not one that I use a great deal ok here's the profile of the standard 50 millimeter jaws that comes it come with the SC 3 and SC 4 and you can see it's got a very miniature dovetail but it we don't even call it a dovetail you can call it a groove you can call it a Hawk peak but if you make a parallel Tennant from from here here down is is perpendicular to the face of the the jaws and it bites into it very leaves very little little marking and it's an excellent hold the outside is a true dovetail on the outside that's a seventy nine and a half degree dovetail on the outside when it comes to the capacity of this this Chuck I would say I would not go more than ten inches and that even that might be pushing it you can go larger but you start increasing our problems through vibration chatter but worse than that it becomes starts becoming an increasingly dangerous proposition you should turn 10 inches and larger with with larger bowls larger larger jaws here's the largest long blank the 50 millimeter jaws should should hold and that's one about six inches long and it's about four inches in diameter safety with chucking and and jaws based on about four factors number one making sure you have a quality tenon that's appropriate to the jaws whether it's a dovetail or whether it's a straight recess similar you want to match the recess to the to the angle of of the outside of your jaws the other factor is how large is the wood compared to the the Chuck in the jaws and then certainly the third factor is how fast you're turning here's what to have that size-wise that blank compares to that 10 inch 10 inch Bowl leverage there's two different kinds of leverages leverages out to the side and leverages straight down so here's the four inch diameter blank we just took out of the 50 millimeter jaws and we compare that to the 8 inch diameter in 8 inches long actually this could have gone out to 10 inches that that could safely be held on those 100 millimeter deep gripper jaws okay these are the 35 millimeter standard jaws and I think there's going to be my new favorites I turn a lot of small stuff and the beauty of this is it uses the same style Hawk beak that very tiny miniature dovetail for grass tenon itaggressive very strongly on the outside it's got a true dovetail so it's it's great if you're turning a little small bowls with recesses or or Tenon's are little saucers but I'll probably use it more on on ornaments and little things of that nature anytime I'm doing a smaller spindle project and say about two inches that I might be able to handle with a normal jaws but if it's in the one in five eights one and three-eighths range this is gonna be the perfect jaw set for me these are the pen jaws they excel for drilling in in pen blanks they've got a very strong hole because they're long they've got two screws in it I don't turn many pen blanks but I do occasionally turn a fan or a lamp pull so you make a little starter hole make a little divot and then I use a hand drill for these and they're perfect because they hold they hold a piece long and you can flip them around and still drill exactly down Center with with milled middle squares I've also used pin jaws to hold small round blanks and they do find turning perches or beaks for birds or something similar to that but frankly the next pair of jaws works better and that's the pin jaws pin1 to show these two jaws side-by-side because there there are some real similarities there's the mini spigot jaws and the pin jaws now they're the outer diameter these are great for and I'll go into a little more detail showing you actual chucking wood but but they go into the same size hole to hold something this has a 13 millimeter bore for holding st. it's got a smooth smooth on the inside and this is nine millimeter so this might be suitable for a little large some larger objects to grasp this works great for like bobbins and some other small items these are used with frequently used for folks that makes pepper mills because they give a very strong hold these serrations might leave some minor markings but they work fine on something like a pepper mill where the markings aren't going to show the pen jaws are are slightly longer both of them have a dovetail so you could use them for recesses on small objects like small small bowls a difference between the two is this uses one screw poor Chuck this one uses two which is why you have this this indention on each side so this gives it a very very strong hole I'm not sure that there's a significant difference for what you're going to be using using these for whether you have a one or one or two the pin jaws can come in handy for several different things number one if you're turning smaller objects in the 9 millimeter Plus or say the 3/8 to 1/2 inch range this makes a very nice set of jaws this works actually better than the pin jaws because it's less likely to Mar it I would use these in many instances where I'm currently using a collet collet Chuck because this is adjustable so it'll be easier to use yet you still got a long long set of jaws that is going to minimize the the marking one of the things I point out on this this set of jaws is it's got a quart square shoulder unlike some of its competitors that might be interchangeable with this that have rounded shoulders in here and the beauty of that is you can use this type of chuck and Lou of what I frequently use a wood worm screw because I had didn't have this Chuck before you you can actually drill a 1/8 inch hole in your bowl blank slide this on flat against the edge and and tighten it up it's a very fast fast method of securing a bowl blank by drilling that 1/8 inch hole because it's so if you're a production ball turn it's it's it's easier to mount and dismount then the woodworm screw is why it makes it easy it also works very well if you're doing a natural edge Bowl where the bark is going to be on on this side is it gives you a very very secure secure hold as I mentioned I believe I mentioned before this is also a great Chuck internally for if you're making pepper mills something long long like this and if you turn a lot of small boxes like I do for example a chuck like this it's not a bad quick quick and dirty option for reverse chucking to finish off of course you got obviously you've got to be very careful and not to blow it out but the fact that it's very long it's going to tighten and in the expand on the back so it's going to be safer than if you are doing it out here on the on the edge and then that may difference whether you're doing the lid or whether you were doing the bottom you've got that same same option for being you have a very secure grasp and and running running true to finish off the top of the bottom now we're going to look at the mini mini speaker mounted and I'm using a spindle adapter to take my one and a quarter inch spindle a spindle thread down to the one inch to match this sc3 which makes it you can buy it for a smaller blade but use it as a second Chuck for example on a larger layer with a spindle adapter now the outside exterior again this would work fine on this this bowl blank as well as the others it it has the same outside a 1 in 1/8 inch hole works just fine it's got a slightly larger bore which makes it suitable for slightly larger wooden blanks you could use this for rounding off smaller squares although I think the pen jaws it probably would be more optimum for that but again we talked about compromise this is one way to do it as long as it the blank is not too too large and again this is a very wrong set of Jaws because it uses two screws to fasten each each each jaw quickly touch on faceplate rings this is the one that comes with it so if you're doing price shopping keep in mind that you're getting one of these free or a faceplate ring included with the price of either either Chuck and I just want to point out this is a three and a half inch and it's actually larger than the one that came with my paramedic faceplate rings are great for doing very very large pieces of wood they're easier to use a faceplate ring actually then a full faceplate because if it's a very large block where you're struggling to get it up and on the lathe threaded it's just easier to lift up a very large block this is not very large but an example have the things sized properly and it'll just slip right on and then after that it'll take the weight and you can go ahead and tighten it up down as a as an additional accessory they've got a huge five inch which is just massive this is a big chunk of steel and this wood this is the the best way for doing very very large blanks hollow forms especially for initial initial roughing it brings us to what record power calls remounting jaws or what most other manufacturers commonly call Cole jaws they've got two sets smaller one for mini lathes and then a larger one with some more elaborate bumpers I'm gonna cover the topic of these jaws in a future video where I do the whole topic of how do you reverse a bowl and finish off the bottom because there's other alternatives besides cold jaws but I'll cover these then another Jo option I'll just mention a plastic soft jaws not every manufacturer has them generally second-tier chuck manufacturers such as grizzly or Barracuda don't have these in an option these are this big mark and they're certainly a top of the line chuck manufacturer but these nylon jaws are easily customizable for your specialized chucking needs and I plan to do a future video and using these for making a custom set of jaws from from this versatile versatile set sighs strongly enough how important it is to read understand and follow through on the manufacturers guidelines on how to use their equipment this is especially important on chucking don't just wing it see exactly what they say as an example on all these various jaws that we've looked at the dovetails are not all the same they vary from on the inside of dovetail for grasping a tenon varies from 61 to 80 degrees on these Chuck's that I've shown you and on the outside from 75 to 82 degrees so it makes a difference it's you're gonna size your dovetail based on your particular jaw set I welcome any comments or questions you have leaving below I especially want to hear from you you first-time visitors y'all stay safe come on back here

Channel: Mike Peace Woodturning

Views: 24,875

Keywords: scroll chuck jaws, Scroll Chuck Jaws 101 for Woodturning, chuck jaws, chuck jaws for woodturners, scroll chuck for wood lathe, SC3 chuck, record power jaws, record power chuck, teknatool chuck, wood turning lathe, woodturning tools, basic woodturning, mike peace woodturning videos, lathe chuck, how to hold wood on lathe, mike peace woodturning, mike peace youtube, woodturning chuck

Id: JMV5riRog-Q

Length: 23min 16sec (1396 seconds)

Published: Fri Jan 25 2019