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MonkeyHunter - 19/10/04 at 12:13 PM

Hi,

I wasnt sure where to post this, so here it is; i am just starting to fully model my car in solidworks, and i was wondering if it would be a good idea to set up some sort of solidworks parts database, for things like hubs etc? Im building a midy with MR2 running gear, so most of my bits will be of little use to most, but i would be happy to share.

Anyone have any thoughts on this?


Alan B - 19/10/04 at 12:57 PM

Hey...sounds like my car..

I'm also getting more into SW too..;D

Check out the mid-engine section if you don't already....


MonkeyHunter - 19/10/04 at 01:28 PM

Hi Alan,

well i was going to build a standard locost, but I had an engine already (1.6L Honda Vtec, 170bhp.) and they spin backwards, so middy was the obvious way forward. I have taken a lot of comfort in the fact yourself and others are nearly there, and although not fully designed yet, i have made most of the hardware decisions, and have most of the bits. So look out for a Alan B clone in the UK in a few years time!!


craig1410 - 19/10/04 at 09:42 PM

MonkeyHunter,
I think that sounds like a great idea, but I'd have to be honest and say that it only sounds great because I'd love to model my car in Solidworks but have never been able to get anywhere fast with it. If someone else designed all the parts for me then that might give me a fighting chance of doing something constructive with it!!

I started messing with Solidworks when I started my build with the idea that I would design in CAD a few steps ahead of the real build. However, I have never got beyond the first dozen or so tubes in CAD before I tied myself up in knots with mating conflicts (no funny comments please...) At this rate my car will be complete before I've even got a basic chassis together in CAD... God knows how I'd get on trying to design somthing like an upright or de-dion axle...

Anyway, enough of my failings as a CAD designer, I still think it's a good idea. I'm going to stick to programming and leave the graphical stuff to those who can draw!

Cheers,
Craig.


blueshift - 19/10/04 at 10:43 PM

quote:
Originally posted by craig1410
However, I have never got beyond the first dozen or so tubes in CAD before I tied myself up in knots with mating conflicts (no funny comments please...)


Hur hur hur

That does indeed sound like a good idea. I have a colocated webserver I could run such a site off, not sure the best way to implement it though. Any ideas?

I have some bits I can contribute, too.. +4 chassis with de dion rear end mods, my own wishbone designs, cortina uprights, gts shocks..


craig1410 - 20/10/04 at 08:30 AM

Yeah yeah, go on - have a good laugh...


I seem to recall you tried in vain to give me some Solidworks pointers a while back but as you can tell, it never sunk in. I was trying to build each "tube" as a part with its ends cut at the angles specified in the McSorley plans but when you try to mate it all toether it never seemed to quite fit. I think this may be down to the dreaded rounding/precision errors causing the mates to never quite mate up. I recall you had a clever scheme of making each tube figure out where the cut points were by extending each one to the mating surface of the next tube but I couldn't get my head around how this all worked. Any chance of sending me a drawing with a couple of tubes mated up in this manner? Let's say tubes A1,A2,B1,B2 for starters? Of course, if you fancy sending me a copy of the entire chassis then that would be even better...

As for how such as "sharing" scheme would work I think there should be something in there to prevent people taking but not giving either through incompetence (like me!) or sheer laziness. Old BBS's used to do this by having a ratio of downloads to uploads (say 3:1) to make sure that you contributed at least one part for every three that you downloaded. Of course something like a whole chassis is a bit different to a suspension bush but I don't think you want to make it too complex or it won't work. You also need to ensure that people don't abuse the system by uploading garbage in return for good parts. If these parts were stored in a hierarchy by donor vehicle and/or category (eg steering, suspension, chassis etc) with some sort of limited keyword search capability then I think that's all that is needed. It should also show the author and perhaps have some form of "rating" to indicate the completeness/quality of the drawing.

How does that sound?
Cheers,
Craig.


Mad Dave - 20/10/04 at 08:45 AM

Craig, which version of Solidworks do you have?

Later Solidworks packages has a weldments feature which enables you to place a particular size section onto a line and the trim the ends to other sections in a number of different ways. If you don't have this it is a lot more difficult to produce models.

Dave


craig1410 - 20/10/04 at 10:43 AM

Dave,
Solidworks 2003 at present.
That may well be a useful feature if it does what you say it does.

Blueshift, is this the method that you were using?

Cheers,
Craig.


MonkeyHunter - 20/10/04 at 11:14 AM

Ok, so we are agreed it would be a good idea then? Thats a good start

Im not sure it would be necessary to force people to contribute, in order to get parts. I imagine that that would restrict the speed that the parts database grew, as if you were starting off designing a chassis, you would need to upload parts to get uprights for example, but at the beginning of the design they would be unlikely to have any parts that were not available.

It strikes me that the people on this board, all have a common purpose, and it seems to be very friendly and free of the bickering etc, that occurs on most other boards I frequent. I imagine that there would be very few people other than the members of this site, which would be interested in the parts, so if access were restricted to members here than that should be enough. Those who can contribute and don?t mind sharing will, those who cant contribute, can do so through the site in different ways by giving advice etc.

Though most people use the same major parts like uprights etc, it would be useful for everyone to have a selection of Rad?s to try out for example, and as there is quite a variety being used, this is where I see the database becoming useful to everyone.

Scott.


Mad Dave - 20/10/04 at 11:21 AM

Craig

I have recently upgraded to SW 2005. Its got some fantastic features such as the weldments also sheet metal work. Maybe you should upgrade aswell if you use it a lot.

Dave


craig1410 - 20/10/04 at 11:24 AM

Scott,
Yes I agree with what you have said, it should indeed work just fine on the "honour" system and this can always be monitored and adjusted as required. As for your mention of radiators, that is a very good point, I hadn't actually thought beyond the usual bits like chassis' and suspensin parts. I have a VW radiator (the larger variant) and even my skills with Solidworks could capture the basic shape and extents of this part. The same could be true for the likes of engine blocks and gearboxes although I would appreciate some guidance on how to get dims for such irregular shapes without a 3D laser scanner.

One suggestion that I would make is that we make sure we stick to a particular version of SW and ideally create a template where the units of measure are defined in advance along with any other useful settings. This should make interoperability easier.

Yep, count me in, I can now see how I can in fact contribute to the cause!

Blueshift, is it worth you speaking to Chris (Webmaster) to see how best the technical side could be put in place. It would be nice to just have a link on the LB forum over to your co-hosted server with authentication info carried over automatically. Assuming of course that Chris is as keen on this idea as we are...

Cheers,
Craig.


Chris Green - 20/10/04 at 11:43 AM

I am slowly building up my SW library, and currently have an almost finished McSorley +4 chassi and a de-dion assy.

I will be happy to share my files also.

Regards,

Chris.


Chris Green - 20/10/04 at 11:48 AM

quote:
Originally posted by craig1410

One suggestion that I would make is that we make sure we stick to a particular version of SW and ideally create a template where the units of measure are defined in advance along with any other useful settings. This should make interoperability easier.

Cheers,
Craig.


Craig,

This would be dificult, because as soon as the latest version of SW is available, most companies install it. It is part of my reseller and support agreement that I receive the latest products and service packs asap.

Because of this, I couldn't model anything apart from in SW2004 format. (soon to be 2005, but we always wait for the first service pack after a new release).

Also, some people have got some slightly less legit copies of SW, we couldn't expect them to upgrade the software that they are working on?

I'm not sure of a solution for this.

Regards,

Chris.


Mad Dave - 20/10/04 at 12:34 PM

When you open an ealier version of a model it says that it will be saved as the new version which is fine for us. This propably means people with old versions can't open our newer files

Dave


Chris Green - 20/10/04 at 12:58 PM

yes Dave, that is correct.

However, SW2004 cannot open files that are earlier than SW95 format. but I doubt anyone would have Solidworks from that long ago!

Regards,

Chris


craig1410 - 20/10/04 at 01:41 PM

Chris,
Fair point about the versions, I suppose we'll just have to make the best of it and see what happens. I still think that a standard template would be worthwhile or at least a set of guidelines to enhance interoperability. Obviously some of you will already have models built but for any new models this would still be worthwhile I think. Does everyone work in millimeters these days or what? Are there any standards about what is the top, bottom, front and back of a model? (That's bound to provoke a few sniggers... ) What about angles - what is normally used as a reference for cutting angles? (eg. if you cut a tube straight cross, perpendicular to its length, is this 90deg or 0deg?) That's the sort of stuff I mean.

Anyway, you guys with Solidworks experience can more easily suggest how we kick this off, I am simply applying my generic project experience as an IT Manager but maybe that's not appropriate here. (Exits stage left...)

Cheers,
Craig.


Chris Green - 20/10/04 at 01:50 PM

quote:
Originally posted by craig1410
Chris,
Fair point about the versions, I suppose we'll just have to make the best of it and see what happens. I still think that a standard template would be worthwhile or at least a set of guidelines to enhance interoperability. Obviously some of you will already have models built but for any new models this would still be worthwhile I think. Does everyone work in millimeters these days or what? Are there any standards about what is the top, bottom, front and back of a model? (That's bound to provoke a few sniggers... ) What about angles - what is normally used as a reference for cutting angles? (eg. if you cut a tube straight cross, perpendicular to its length, is this 90deg or 0deg?) That's the sort of stuff I mean.

Anyway, you guys with Solidworks experience can more easily suggest how we kick this off, I am simply applying my generic project experience as an IT Manager but maybe that's not appropriate here. (Exits stage left...)

Cheers,
Craig.


Yes, a standard template would be a good idea.

I work in millimeters.

I generally have the XY plane as the front, and ZY as the side plane.
This isn't too critical, as it can be changed after the model has been started. It is still best to have a common template though.

A set of guidelines would be useful, (although tbh,we can't expect people to change the way they work. There are so many different ways to model 3D components.)

Best Regards,

Chris.


MonkeyHunter - 20/10/04 at 02:32 PM

craig1410

I have been thinking more along the rad/engine/box/fuel tank and other components (bodywork?) line, as everyone generally builds one of a handful of chassis, but all the other components mean that the permutations become quite large, i often see people asking which alt will fit in a certain space, if we could have a few alt's modelled, then people could plug them in and see if they fitted. Obviously this sort of detail is not going to happen over night, but if we could coordinate things a little im sure it wouldnt take us to long, and perhaps we could see some more elegant solutions to space problems as a result?

Im still learning how to use solidworks (2003), but i can see that it is a very powerful tool and with a bit of time spent on it, could potentially save people a lot of time on their builds.


blueshift - 20/10/04 at 11:20 PM

Hi chaps. Thought I'd get the ball rolling, I have uploaded my current working set of solidworks files to my webserver. 7.5MB, includes +4 chassis and front suspension, cortina and GTS shock models, cut-out-and-keep tube templates, everything a young boy needs

Enjoy:

http://www.leetfighter.com/locost%20solidworks%20things.zip


phelpsa - 21/10/04 at 08:33 AM

Wow, we've just got broadband (last week) and I never knew how quick it was.


blueshift - 21/10/04 at 08:44 AM

heh, it helps that that server is NOT on broadband but something a little quicker


Chris Green - 21/10/04 at 08:53 AM

my server at work is really slow at the moment, so when I download it, it terminates after about 10 minutes, and tells me that the D/L is complete.

I've managed to download 2MB, but the zip file is corrupted, so I can't actually access the files!

Gutted! I will have to wait for the server to sort itself out!

If not, I'll d/l it at home tonight.

Cheers Blueshift!

Regards,

Chris.


Alan B - 21/10/04 at 01:44 PM

Cheers mate...looks good.....thanks for sharing


MonkeyHunter - 21/10/04 at 02:35 PM

Very nice blueshift, cheers for starting things off; I cant open all the files though as i am using SW 2003

I will contribute some stuff, as soon as i have a better grip of solid works, and some decent models of bits.


blueshift - 21/10/04 at 02:53 PM

Um, you should be able to, I use solidworks 2003 as well. what can't you open?


MonkeyHunter - 21/10/04 at 03:27 PM

I cant open the chassis with running gear, it says its an unrecognised file?


blueshift - 21/10/04 at 03:48 PM

Oh, it works for me (obviously). can you open the chassis assembly? I wonder if your download was corrupted.. could try downloading again, if that doesn't work, maybe reinstall solidworks?


MonkeyHunter - 21/10/04 at 04:11 PM

If its "chassis.SLDASM" then no i cant, i can see them both in the preview window though :/ i will try downloading and reinstaling, as sometimes when i quit it crashes with an unhandled exception.

Scott.


derf - 21/10/04 at 05:16 PM

If some one can u2u me with the info on where to upload... I have a small library of parts I'd like to share too, some basic wheels, hyabusa engine model, a basic rendering of a 13b (rotary engine), shocks, nuts, bolts, a few human figures, some gears (chain drives), and a bunch of imcomplete (i got bored before finishing them) items.

I am using 2004.

Also people who are using the older versions of solidworks can probably find the newer version on p2p sites like kazaa, their older authentication codes should work on the newer version (at least that's what Ive been told). Ive been told that at least the '03 works on the '05 version, not sure how far back it will work. There might also be SW crack programs available on p2p sites such as kazaa.


derf - 21/10/04 at 05:22 PM

It would also be nice to have a database of parts ex:

.....................Chasiss
..................../............
...........Frame............. Suspension
........../....................../........|........
Book............+4..... Front...Rear...Shocks



Then for each part

..........................Original
........................./.............
.....Modified by user A.......Mod by B
......../..................
Mod by C.........Mod by D
......................./.............
..............Mod by E........Mod by F

Sorry about all the periods, Ive never been good at ascii.

I would like to see a directory where each part that is original, my 13b for example which is quite unrefined, gets updated where a user can download the model, then upload it with changes, having let's say 3 versions of the finished engine, each one slighly more finished than the last.

[Edited on 21/10/04 by derf]


Alan B - 21/10/04 at 07:45 PM

quote:
Originally posted by derf


....Sorry about all the periods, Ive never been good at ascii.....




Translation to UK english..

period = full stop

In case you guys didn't know..


Mark Allanson - 21/10/04 at 08:08 PM

Nothing to do with american food additives then?


mackie - 22/10/04 at 08:45 AM

I have simple Rover V8, bellhousing and LT77 models. I'll upload them later if I remember.


MonkeyHunter - 22/10/04 at 10:01 AM

well it looks like this might go somewhere useful I better get modeling then!


Bob C - 22/10/04 at 10:20 AM

I have some models based on mx5 running gear that I can stick on.
I've only modelled a rear quarter of the chassis so far so I'll build up a full chassis model & download that.
Bob C


blueshift - 22/10/04 at 11:17 AM

If anyone has models they'd like to contribute, you can email them to me and I'll bung them up on a little temporary webspace until something cleverer is worked out.


MonkeyHunter - 22/10/04 at 11:33 AM

Thanks for that Blueshift. Much appreciated!


jcduroc - 22/10/04 at 07:45 PM

Blueshift

I downloaded your .zip file and the extracted files look ok.

I'm totally "virgin" with Soliworks (I have 2003 ... not complete - no user manual).

How did you do the parts (tubes) and the assembly (chassis)? Parts first and then put together (how?)? or assembly first?

Can you give me some guidance? I might contribute a little if I manage to be able to work with the da.. thing.

BTW I have the correct dims for the balljoints.


MonkeyHunter - 23/10/04 at 03:11 PM

jcduroc your best bet is to work through the online tutorials...


blueshift - 23/10/04 at 03:13 PM

Uhm, do the solidworks tutorials first.

If others want to email me some things to contribute, jon at leetfighter dot com. I will put up a little blurb about how I made the chassis if I do a little site for the files.

Basically though, the tubes are extruded squares, laid out with mates and using blind and extrude-to-surface, then fixed and the mates deleted (or it got too unwieldy). I think all the mates are there to do an adjustable length engine bay though, should be possible to unsupress a lot of them and float the front tubes and have a nice auto recalculating front end. A few red herring old mates in there though, so not super straightforward.


Dizzy_G - 16/3/05 at 02:28 PM

could i get a copy of the 13B model if possible. IS there a Turbo on it? If not any idea how much bigger it is with a turbo attached??

i need to figure out if a 13B T engine will fit into a Dax rush.


Bob C - 16/3/05 at 04:28 PM

I spent a while adding my rear suspension to this solidworks model.
OMG the wheels are sticking into the chassis WTF....??? Ahhh - it's a +4 wide model.
Doh!!! - I'll bring it down to book dims eventually......... when I figure out how!
cheers
Bob


Darin - 8/11/05 at 03:59 AM

quote:
Originally posted by derf
If some one can u2u me with the info on where to upload... I have a small library of parts I'd like to share too, some basic wheels, hyabusa engine model, a basic rendering of a 13b (rotary engine), shocks, nuts, bolts, a few human figures, some gears (chain drives), and a bunch of imcomplete (i got bored before finishing them) items.

I am using 2004.

Also people who are using the older versions of solidworks can probably find the newer version on p2p sites like kazaa, their older authentication codes should work on the newer version (at least that's what Ive been told). Ive been told that at least the '03 works on the '05 version, not sure how far back it will work. There might also be SW crack programs available on p2p sites such as kazaa.


jon_haggerty - 8/11/05 at 03:38 PM

Is solid works anything like solid edge which is what i use?


chrisf - 8/11/05 at 03:52 PM

quote:

Is solid works anything like solid edge which is what i use?



They are similar. SolidEdge actually sells SolidWorks their engine. However, the user interface is much easier in SolidWorks. If you understand SolidEdge, you'll have no trouble with SolidWorks.

--Chris


blueshift - 8/11/05 at 08:00 PM

Cor, this topic brings back memories.

I think I have redone the front suspension since.


paul the 6th - 23/7/08 at 10:41 AM

old old old old old old thread!

Only just signed upto this site a few days ago. I've finally got hold of solidworks 08 and was wondering how far everyone got with this parts directory/database?

I had a quick look on solidworks' own website - they do have their own forums with a "Data Exchange" section which could be something to do with swapping designs.

I don't know if it would be worth setting up a standalone "LocostDesigners.co.uk" forum with all solidworks parts/design discussion etc?

Might be a bit extreme?

Just wondered


hellbent345 - 14/8/08 at 12:28 PM

old thread indeed but i for one am interested in getting it rolling again, i have haynes rear uprights and bearing mounts etc, could use some engine drawings (pinto or 2l DOHC is what i really need- or zetec) if there are any solidworks people hanging around anymore!


Cobra289 - 14/8/08 at 09:41 PM

quote:
Originally posted by hellbent345
old thread indeed but i for one am interested in getting it rolling again, i have haynes rear uprights and bearing mounts etc, could use some engine drawings (pinto or 2l DOHC is what i really need- or zetec) if there are any solidworks people hanging around anymore!


Yes there are.
I have made the Sierra front upright from a drawing posted at the forum.
See if you like.

Regards,
Cobra289 Rescued attachment SIERRA_UPRIGHT_01.JPG
Rescued attachment SIERRA_UPRIGHT_01.JPG


hellbent345 - 16/8/08 at 07:22 PM

how does that hub stay on? im interested to know so i can see if i can redesign for a rear steer system? i need to know how the stub axle passes through the bearing and is held on? thanks
alan


Cobra289 - 16/8/08 at 09:50 PM

quote:
Originally posted by hellbent345
how does that hub stay on? im interested to know so i can see if i can redesign for a rear steer system? i need to know how the stub axle passes through the bearing and is held on? thanks
alan

Change the Sierra hub to rear steer would be easy due to the funny design of FORD.
Although the steering location should be designed in the proper way, to have the correct values of different parameters.
"Bump steer" is one of the classics but more other parameters should be take in account.

The stub axle is different than the normal stub axle design, we can say that these hub is a self containing, sorry but I don't have a section drawing.

The parameters used are from a drawing posted at this forum:
http://www.locostbuilders.co.uk/viewthread.php?tid=90788

My translation to SW can be seen at the next picture. Rescued attachment KPI_01.JPG
Rescued attachment KPI_01.JPG


Cobra289 - 16/8/08 at 09:52 PM

Lets see if I can post more pictures.





As you can see the Ford design is a bit confusing, probably was a manager decision to get rid of a pile of stock.

The Caster is made to have a rear steering system but the installation and design at the car [sierra] was with a front steering.
To get a nice Caster with a front steering you need to rotate the hub by a lot.


[Edited on 16/8/08 by Cobra289]

[Edited on 16/8/08 by Cobra289]


Cobra289 - 16/8/08 at 10:10 PM

This picture show the typical setup of a Locost.


After several evaluations we did decided to go in a different way, the Sierra hub don't give us the parameters that we want to have. The mushroom piece should be changed in such way that would be result in a bad design.
But is our opinion, and we are quit stringent with our suspension design.

Regards,
Cobra289


Cobra289 - 17/8/08 at 12:44 PM

quote:
Originally posted by hellbent345
i need to know how the stub axle passes through the bearing and is held on? thanks
alan


I found a exploded view at the Ford manual where you can see the components used at the front upright.


I hope that this help you.
Regards,
Cobra289

[Edited on 17/8/08 by Cobra289]


Syd Bridge - 18/8/08 at 09:38 AM

That SW dwg is far from correct. I've got a copy of the original Ford dwgs somewhere, I'll try and find them, but I know from dealings with the original design team, the upright was always intended to be front steer, and front wheel drive. It just didn't end up that way.

I'd be very wary of turning the hubs around and rear steering the system, as well. I've seen it done, and the awful consequences.

The axle is held in with a big nut under the cover plate, sandwiching the bearings, which have a ridge between them in the main knuckle casting.

And again, these are made from SG IRON, NOT forged or cast steel.

Cheers,
Syd.


Cobra289 - 18/8/08 at 10:02 AM

quote:
Originally posted by Syd Bridge
That SW dwg is far from correct. I've got a copy of the original Ford dwgs somewhere, I'll try and find them, but I know from dealings with the original design team, the upright was always intended to be front steer, and front wheel drive. It just didn't end up that way.

I'd be very wary of turning the hubs around and rear steering the system, as well. I've seen it done, and the awful consequences.

The axle is held in with a big nut under the cover plate, sandwiching the bearings, which have a ridge between them in the main knuckle casting.

And again, these are made from SG IRON, NOT forged or cast steel.

Cheers,
Syd.


Hi Syd,
It would be nice to have the Ford drawing, because make the part in SW is not a big deal, the problem is just find the right information.

As I did mention, my model is based on the posted drawing [link above]

Thank for the inside information it is always interesting to know.

Regards,
Cobra289

[Edited on 18/8/08 by Cobra289]


Liam - 18/8/08 at 06:18 PM

On my Sierra 4x4 uprights the bottom and top balljoints are perfectly aligned. Are you sure that built in negative castor really exists? I can't see why they'd do it that way as the production car is McPherson strut and the caster is determined by the rearward inclination of the whole upright/strut assembly. Anybody got a real one to look at?

Liam


Cobra289 - 18/8/08 at 06:49 PM

quote:
Originally posted by Liam
On my Sierra 4x4 uprights the bottom and top balljoints are perfectly aligned. Are you sure that built in negative castor really exists? I can't see why they'd do it that way as the production car is McPherson strut and the caster is determined by the rearward inclination of the whole upright/strut assembly. Anybody got a real one to look at?

Liam


Liam,
I am not shore about it.
This is the drawing that I got to make it.
http://www.locostbuilders.co.uk/viewthread.php?tid=90788

It looks pretty convincent. I did ask, for the drawing, because don't have access to the real upright.

Regards,
Cobra289


hellbent345 - 20/8/08 at 08:29 AM

so by the looks of that drg, the hub is kept from falling out by 2 thrust bearings, clamped onto an inner surface of the upright? the inside one stopping it from falling outwards, the outer one stopping it from sliding inwards? ill draw a pic lol
also im not planning to turn them round, im planning to use rortys many posts to help design a new upright with good geometry and rear steer.. if i can get it in the space available!



quick rough idea of what i recon the inside on an upright is like from the above comments and drgs, is it right? someone correct me if not



[Edited on 20/8/08 by hellbent345]


Cobra289 - 20/8/08 at 10:40 AM

quote:
Originally posted by hellbent345
so by the looks of that drg, the hub is kept from falling out by 2 thrust bearings, clamped onto an inner surface of the upright? the inside one stopping it from falling outwards, the outer one stopping it from sliding inwards? ill draw a pic lol
also im not planning to turn them round, im planning to use rortys many posts to help design a new upright with good geometry and rear steer.. if i can get it in the space available!

quick rough idea of what i recon the inside on an upright is like from the above comments and drgs, is it right? someone correct me if not

[Edited on 20/8/08 by hellbent345]


Besides of the proportion the drawing is OK.
The bearings are taper type.
The lip at the bearing carrier is bigger.

If you plant to make a upright using the Ford design, keep the dimension exactly like the Ford ones, because that will guaranty that you have a correct bearing end-play.

You have U2U.


Regards,
Cobra289