Femte del af Michael Fremer´s besøg hos Rega

the policy from before Barry and this is a fine [Music] like I can understand why a layperson might look at this and think it's an o-ring but it's really not this no but the touring for this is far more complex than an o-ring so my definition of an o-ring would simply be a belt that's round you know yes engineering you can go over standard parts you can go to yeah but that's not what you use no no no we make hair opportunely yep and the tooling has to be to a factor of 10 more accurate in two important areas than the tooling you'd use to make a knowing okay first of all in the bonus there's three factors actually you've got the internal and external dimensions of the circumference of the Ring you've got a section if it's the ring if you cut that in half have you got a picture of a diameter yep well that's that's a this process a Rieger driveable so this is ross section of it yeah and you can see you won't find miss much with an O ring this half might come down here oh right so the two halves would be out yes that's common because you can't typically make economical tolling accurately there and there are the two powers and this magnification oh yeah giant magnification yeah exactly so this sort of they're made from two halves of peak so the toll has to open and shut did you make when you talked about this with me you are making assumptions that you'd think I would know that people would know but they don't know of course yeah now you're because now you're saying when you make an o-ring you have to do this nobody knows though of course well this this particular belt I'm home I didn't mean your ring I'm sorry I use the wrong term this thing that you put around with but we're understanding the fact that could what the difficult thing for us is to explain to people just how much work is going into what looks like no way but isn't that isn't no not at all and even this material we've just spent four years developing the material which we're really quite excited about this is gonna transform before turntables and will you be able to apply that to two billion people of riga turntables to focus on their turn to through their performance yeah I'm sure we can yeah they stopped making them right now the real purpose the real purpose for developing yeast was for some of our new turntables we're developing the high-performance right a typical oring tool is a square block of steel [Music] maybe this size and and it will be about 30 millimeters thick and it will have a groove cutting into it to make the ring yeah now let's say the Rings are legal the crews will be right I got you like that then you that it's a semicircle right and then there will be another half of hits on it and it has locating pins here to locate the two halves together right you can imagine that you know just a small difference between one of those is gonna it's not very much so okay what they actually do to make it commercially viable is they put another ring in here so they've made two different sizes at the same time well they usually make 10 10 10 different size yeah for different purposes yeah yeah well he's a British standard sizes you could just phone up I could get you rings tomorrow from my local supplier British they would be plus or minus three thousandths of an inch on those things and then they so then I get a poor that had is that wherever this material is the rubber is like plasticine oh yeah standard either standard or really the stands I heard of it but I wanted they put their poor material no the rubber can either be just put in as a slab it's like plasticine by getting some cured and the other top comes and squashes it out or if you want it a little bit more accurate they extrude the plasticine into a long thin string and then they fit it in here and just fudge the end and then they then close it down then close it and then it's heated for about typically 10 minutes but varying cycles depending on the material and the time and how well you want the cure okay what we do is listen this is what we're doing at the moment but it's very clear we make a round to the first because the temperature will be more even over the to warm we have a large hole in the middle which if we're looking in section of that it has a tapered location in the middle of the tall way and then the groove is turned and we make only one on each tool and the groove is turned at the same time that that taper is turned so that is exactly centered onto the tail is where the Nesser toolmaker he's making no rings for space rockets which you can imagine two meters of failure one bed in here well the temperature was a problem it wasn't as obvious but it was about the o-rings going too hard at low temperature right he can make a ring suspect he can't make o-rings accurately enough really seriously I'm really serious and but he because he Tom he's up for the challenge I said this is a standard is a standard overhang out of this kit and you'll probably see inside this o-ring you'll see aspirins you'll see the ridge yeah yeah I'm a hopefully the camera can see that and that will be part of a mismatch between the two halves I said Rose explaining how with different tooling we avoided see yeah and of course that split will give you speed issues for return to her yeah okay so what what just one characteristic of the material that's important is its is hysteresis modulus if you like well it's been molded this is is how it behaves how it stretches how it recovers its hardness they have consistent that hardness is in the bill and if you feel this drive bill if you just gently feel that you can you'll feel a characteristic right okay so just to show you the subtleties we're working with this is a new prototype little feel the difference yes you can almost and actually feel a squishing this as you move it right in with your fingertips just feels different yeah absolutely and and these these characteristics of the rubber material itself and these are two different types of like ones in EPDM ones a poly chloroprene but they they they all have an impact on the turntables performance everything is speed everything isn't everything effects the sound of everything and everybody doesn't think that doesn't has a spent time listening and making the Harrisons between materials purposes and these are these are technical changes where we are measuring characteristics that drive those and we're using these new systems rhaegar has formats of a turntable so we can start seeing different materials hang more aspects of the turn Tony's performance so it's very much technical it's technically measuring yes and now we're gonna grab Susan you're gonna show me something this isn't this is really does not exist yet this is the Nyad near now this is no this doesn't it this isn't on to keep it secret this is on to keep dust off and this is an early prototype okay so you did see this that's right yeah yeah so and it only hangs on the wall or it'll have a no it can you can sit on a suitable sensible shelf but as you can see there's been a lot of work into that particular shelf to support the turntable and it's sitting on points yeah you have three typical nice with Rika because most of your turntables are pointless Wow so you you can see elements of Rieger of course of course you would expect to yes I wouldn't expect you abandon everything you've done for that that's fine so you know even with a planner one for example you're gonna see you know links here three three mounting rights for the chassis the basic dimensions of all key parts you know the position of the tone on the overhang length as you mentioned yesterday this distance between the tone of the main bearing etc we happened yeah what we're looking to do is to study the compromises we've made in the past which kind of we we tend to say of roy's philosophies on turntable and then we're looking to see just how far we can improve every one of those compromises whilst keeping them all in mind as a group rotate you can see for what he's going to be we still don't know how much one costs we've not totted up the sum that you're minimalizing the structure you will further an interesting thing is if I just lift him off your shelf so you can get a bit of you it is you pay more for less it's a very very small turn to here so you would have picked up from Roy of course that trying to keep the mess now yeah the chassis is very important to us one way you can do that is to make it physically as small as possible yeah yeah through this material using a ceramic material for the hello menial oxide ceramic plan so that's particularly hard one of the most is one of the most vicious materials known to man that's what's used in atomic accelerators to fire the atoms into the accelerator no but this material is harder again contentious we thought and what is it nice measurably harder in rockport on him as much machining it must be really fun it's there is very lengthy there there is no standard library of measurement techniques and machining zirconium as we speak it's a second C exerciser fully enough when like my youngest son did a master's it was one of the projects he could have undertaken with rolls-royce Wow to develop measurement procedures for was a canoe and the platter is closed yeah ceramic sorry is this gonna be for a reader no no no this was just one of an earlier experiments to see if we could develop a servo yeah so that would be a reader of them yes but we decided that this was just not to the performance level we we were after so we we've ended up developing a system which is based on Ashton's measurements are also it's very very accurate so annoyed owner will be able to they'll be quite a large elaborate power supply which you may have seen on Ashton's desk yeah and this is a new material silicon mass of silicon which I believe we've improved on silicon in fact if you look at this platter you'll see how much work this prototypes done this is actually we just saw with the felt us all with the felt you are a true believer and what you believe and I admire that it's not believe it's trying to find it's very very good coupling what's a dust attractor you know it's well it's as a clutch plate when you've only got gravity to hold the record here to your drives is silver this group it's very very very good for a rigid cargo and Roy can explain why he thinks natural wood is better than synthetic fibers that's essentially what it is if you can imagine you know we've got a very very we've got a hypercar here this is very hot thin and send yeah yeah in theory shouldn't be there if Lane is some sort be a coupling yeah what coupling with better coupling is good I haven't done in years I'm a pepperoni so this is at least tend to be reference turntables in here so they were turntables that were part of a just before the pre-production month when the product meant in production proper so this is if you like a 0 0 1 of an RP term now the reason we keep these reference tables it's very important because if at any point in the future anybody in Riga needs to reference current carpeting yeah what was the original bin mm-hmm well obviously we have engineering drawings and everything you can measure or record we can take this product and if absolutely necessary you can even play against the current level well they should be identical even though a few years may have passed yeah this is for example that the reference you can see this was created in the 11th of March 16 No so this was the reference table for the current planets right this one for a 2 here and a 1 so if you find a reference products for Riga products that's great to have that now it makes a lot of sense yeah we so hey oh it is I thought it said fills [Laughter] and you can see someone even though this product is very much at the end of its life now someone recently this week has been using this reference six and I've been using it actually is reference against the the new planets what's coming yeah sure so this is just gonna be called a P 6 P six minus six yeah Matt so we've got a scoop here but what is it is it's a bigger as it looks but what I'll show you so I'll show you one thing because we don't want to give too much away because even spoil the surprises for everyone but obviously you've got to take the tonearm off in your mind but I will show you very very quickly the main important difference okay so understand this is this is for you really but if you just if you can hold that you can I think what maybe you your your yours you'll get the difference between the two times Australian way so even though there's a few bits missing okay so that's our p6 planner sakes Oh even even though there's no are more proper things absolutely significant see later he seemingly is in the order of kilo use yeah it's a form and what is that better just a particular material this is very much traditional when you get from room this is the modern airy yeah so this gets a closer to the more twice tonight entertain that's an early yeah so a lot of work that's almost three years work to achieve this composite panel and because we're having to achieve it approximately forty percent the cost that's always the hardest thing right to take something you develops yes right again yeah exactly yeah exactly that so I mean there's lots of other new things are coming on the 6:30 term compared to RP six major performance advantages that drop in less of the chassis yeah really that'll make it shine really looking forward to it's like the song cameras okay yeah sure Wow so that's the theory aerospace more Formula one than aerospace yeah in fact the original contractor was was a major Formula one supplier and the current one is part what X Lotus yeah in fact he still makes racing racing bodies for things like oxygen this is the this is the zirconium so no this is this was quite a challenge because if you're if you're in manufacturing or engineering if you present someone with this as a drawing this particular part with this whole being what we would call blind so there's no way it's all one piece of material you cannot do anything than try and create that there's a hole from the top and do that very accurately in all its aspects the depth the diameter the concentricity etc etc and then get a perfectly fitting a spindle in a material that only diamond will be able to machine very slowly of course the the guys we work with said well you can't do it can't no it's not won't be possible we can't make it she did it well well what we did was too big you know yeah but we we just said well look tell you what here's some money please try if it goes wrong we don't want our money back and about four months later I this turned up one and they they were very proud and Sarah wish that was an aluminium oxide well it was actually yes and this was this was a later development using that's a very very elaborate vertical bearing housing for a tunnel and super light yes that's some titanium oh so there's a few hundred pounds oh yeah did the machining as you can see there's a lots of processes there yeah well well this is this is the Neue platter that you saw down without being without the without the fingerprints yeah if you put Mike's finger pretty much gonna be worth yeah but you still might add the encoder on there yes no no we'll be using the accurate oh that's right this doesn't need that it's all different just offer because it's it's it's a nicety will offer Aston's measuring that hope is built as an option yeah and those people will want it they were 1av yes being we've mentioned how this project which was terrific fun for me and well again the benefit of listening to them as well yes right you did last night you can listen again tonight yeah we never let you know it now you've recovered from the plane trip it inspired us we realize that the things we were developing here we can put them on cheaper tables yeah so although this brace like this so this is a ceramic brace it's very very rigid if you it has no tenacity so you can snap it pretty easy I want but if you want little Y which is one of Roy's favorite methods to demonstrate if you just rest it gently against your tooth and then with your fingernail just yeah tap on the end you'll feel - you'll feel how instantaneous that energy is transferred try your fingernail oh you get that yeah yep yes so if you try it now so this is hundreds of pounds to make this is one pound was yeah very different not as good but still pretty good yes so pretty much it so this is what we can do with an or three when we have a lower budget right that's that's phenolic and that's what you're using now yeah it's a laminate of special paper and resins and that's what you using on that on the three now yeah yeah I mean the history of this is the the guy was a Belgian guy in the 1920s 30s his name was battle it and he developed these very very early polymers resins very cool that's gonna be quite honor okay I think I'm done because my battery is just about a minute to go in the battery so that was perfect thank you that's okay