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davidimurray
5th August 2009, 11:43 PM
Just been having a think - dangerous I know! Having just had a quick play in solidworks, it would seem like you could quite easily get two identical plates cut to use as jigs, one clamps to the front frame. The other would then be positioned 13mm behind rails U1 and U2. 4 bits of studding later and a few little spacers and you then have a guaranteed positional relationship between the mounts and you can cut up the jig plates to use to make bits of the car out of ;)

Anyone tried going down this route - it would seem far too easy!

davidimurray
6th August 2009, 12:46 AM
Update - it would seem that with some Baldrcik style cunning, you could actually use one set of plates for both the front and the rear of the car. I will try and post some pics tomo.

flyerncle
6th August 2009, 09:42 PM
Would be a great help to me David,I am fitting them soon.(drawing would be nice)

HandyAndy
6th August 2009, 09:45 PM
Would be a great help to me David,I am fitting them soon.(drawing would be nice)

posting some parts to you tomorrow Flyerncle ;) :cool:
andy:)

flyerncle
6th August 2009, 09:54 PM
Thanks Andy,Will have to pop down and say hello soon.

That post above was not a hint !!!!!!!!

Thanks

Paul

HandyAndy
6th August 2009, 09:56 PM
Thanks Andy,Will have to pop down and say hello soon.

That post above was not a hint !!!!!!!!

Thanks

Paul

:D :D
i know it wasn,t ya daft beggar,
yeah you must come down & check my build, you can show me the best route for my brake & fuel lines ;) :D

andy

flyerncle
6th August 2009, 10:05 PM
Got anything to make the ends ?

I have.

Less of the daft !

HandyAndy
6th August 2009, 10:12 PM
Got anything to make the ends ?

I have.

Less of the daft !

:o ;) erm no, how do you fancy an afternoon making brake lines?:o ;)
( sorry i seem to have hijacked this thread, apologies )

andy

davidimurray
6th August 2009, 10:15 PM
Right - have a look at these. It would seem that with some nifty joggling you can use only two plates to do the front and rear. They are quite big pieces of plate, but I will get them laser cut with the rest of the platework so shouldn't be too expensive. They will do all the suspension mounts, you just need to then sort out the shock mounts. The idea is to use studding to accurately set the back and forth alignment and a few little spacers will make life easier

These are still a concept at the moment and not tested, but if anyone wants a drawing or even the DXF files to try them they are welcome but you do so at your own risk :p

Front Setup
http://www.geocities.com/davidimurray/frontsus1.jpg
http://www.geocities.com/davidimurray/frontsus2.jpg
http://www.geocities.com/davidimurray/frontsus3.jpg

davidimurray
6th August 2009, 10:16 PM
Rear Setup
http://www.geocities.com/davidimurray/rearsus1.jpg
http://www.geocities.com/davidimurray/rearsus2.jpg
http://www.geocities.com/davidimurray/rearsus3.jpg

flyerncle
6th August 2009, 10:16 PM
Bloody brilliant, (I hate You).

Bonzo
6th August 2009, 10:25 PM
Nice work there Dave :) :cool:

Very similar to the way I fixed my suspension brackets.
Frames were made similar to your plates, I then made some bushes (Tubes) to fit inside the suspension brackets & as you say, used some studding to hold them the correct distance apart. ;)

HandyAndy
6th August 2009, 10:26 PM
i must say that looks bloomin clever stuff, i wouldn,t have a clue how to create that on a computer,

how did you come up with the idea in the first place? great "thinking outside of the box" , clever stuff:cool:

andy

Balidey
6th August 2009, 10:51 PM
Good idea.
Can I ask what format the chassis model is in? And is it freely available? Would save me starting from scratch if it is.

Jimmyd
6th August 2009, 11:24 PM
Oh nice job. I have my brackets on but wouldn't mind a copy of the file. I may well have a set cut for next time!!


J

davidimurray
6th August 2009, 11:37 PM
Thanks for all the comments guys - glad you approve.

The idea actually came from looking at the book jigs. When I started thinking about them I could see a number of potential areas for innacuracy to creep in. Firstly by the use of seperate jigs for upper and lower mounts, secondly, because the lower jig frame is bent to shape a lot of accuracy would be required to get things spot on. The imprtant thing is more the relative positions between the mounts, than the actual positions on the car.

So I simply started with a flat 'plate' placed on the front of my model of the chassis in Solidworks. I then cut the holes in the plate as per the book. Then copied the plate and added it to the back of the front mounts. I could then see a few interference points, so cut some notches in for clearing the chassis tubes. Then of course I realised that there was no easy way to clamp the plate and only limited access the welding - so I cut the big (weight saving :p ) holes in the middle.

And that was the front one done. Decided to try and see if I could make the same piece of plate fit the rear, and it does, just. A few extra holes and some more cutouts later and you have the end result.

In terms of using them, for the front you would first clamp the fron plate to the front of the chassis, checking that it is square and central to the car. Then you would install your studding, mounts and any spacers onto the front jog like a bix kebab skewer. Then fit the rear plate, spacing it off u1 and u2 by 13mm and once square and central you can clamp to U1/U2.

The rear one is similar but has another advanatge, the plate is notched to fit straight over the RS1/RS2 tubes, so it should self centre on the chassis so you just need to ensure that you set the right fore/aft position (plate 48mm from tubes RS10. and then use your studding to set up the second plate. If you were doing more than a one off you could make up spacer sets and then you could probably fit the mounts in minutes - for mine I will be using studding as it allows the positions to be accurately set.

Just realise as well I forgot to show you how the actual plate looks by itself.

Andy - the 3d stuff is amazingly easy - much easier than the old 2d stuff!

Balidey - the model is in Solidworks 2007 format. You are welcome to a copy but it is not a fully complete model, still requires a bit more work and hasn't been fully checked thoroughly.

http://www.geocities.com/davidimurray/susjig1.jpg