ady77
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| posted on 13/3/06 at 09:23 PM |
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LA LB LC LD
Hi can any one help me with tubes LA LB LC LD, what are the correct angles. And what is the best way to make this part of the chassis? I have had to
attempts and have wasted material. Help
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big_wasa
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| posted on 13/3/06 at 09:38 PM |
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Compound mitres in mid air  I found that a bitch aswell, so I made a jig.
As for the angles, I just kept taking a tiny bit of at a time with the file untill they fitted.
I fully weled it on the bench to make sure it was square before welding to the chassis
Hope that helps regards warren
[Edited on 13/3/06 by big_wasa]
 
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big_wasa
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| posted on 13/3/06 at 09:44 PM |
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somthing you may wish to Know.If you are using book bones on the Gts plans then you will still end up with bugger all castor. If doing again I would
drag Lc back 100mm not the 76mm as in the book
Wish bone bracketts hang of Fu's meaning you need to brace them if you dont. Pain in itself as steering column gets in the way.
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Danozeman
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| posted on 13/3/06 at 10:11 PM |
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I made up a jig out of wood when i made mine ages ago and clamped the tube to that.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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907
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| posted on 13/3/06 at 10:36 PM |
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I do like the idea of getting rid of those pointy top corners.
Wish I'd have done it to mine. 
Paul G
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James
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| posted on 14/3/06 at 08:49 AM |
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Ady77,
I only managed it on the 3rd attempt!
I just used a bit of trigonometry to work out the angles that each face of each tube needed to be cut and cut them one face at a time.
That's the key really, don't try and cut through the whole tube at a weird angle, just cut each face.
Then true it up with a good file.
Hope that helps,
James
P.S. Oh, and I cut my ears off (the pointy bits on the top rail) too. Well worth doing!
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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Bob C
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| posted on 14/3/06 at 09:50 AM |
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What are those bluddy ears about?? I've faithfully made the proper ears & they are pointless, screw up SVA radius, get in way of headlight
brackets etc. what was their original point?
How about extending that bar where the ears are to get a headlight/indicator mounting?
Oh yeah - the original thread - cut compound mitres with a hacksaw, scribing each face separately. Use a 3" piece of wood and clamps to make the
front face.
Just tack it - it may well have to come apart to be able to fit the front susp. mountings in the correct position when the chassis is more together -
be warned.
Fully weld when the mountings are jigged up, in position
Bob C
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dave_w11
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| posted on 14/3/06 at 02:15 PM |
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I'm just doing these now aswell. I've tacked together most of the rest of the chassis and put in place a jig to hold the suspension
brackets in place so I can hold LB and LC on the brackets to weld them.
For the cuts of LB and LC I made up some things I could print off and wrap round the tube to give the right angle to cut to.
Here's what I used based on mcsorley's book chassis plans.
Unfortunately I managed to fail the simple task of holding the tube in place while I welded them on so I had to take the tube off and will be trying
again today 
EDIT: Can you only add a picture when you first post and not by editing a message? I messed it up first time but when I try to edit it just puts the
[img] tags in as text like
[img]/upload/04-03-06_2.jpg[/img]
[Edited on 14/3/06 by dave_w11]
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andyps
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| posted on 14/3/06 at 03:21 PM |
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I put the top and bottom tubes in place, making sure they were parallel, the correct distance apart (using a plumb line from the top one) and correct
around the centre line. Having done this I used an angle grinder to get the upright tubes the right length and angles. Not very scientific, but it
worked eventually and saved working things out for the extra 2 inches in my chassis height.
Having got everything right I have ended up cutting the upright tubes out as they were not needed for the way I am doing my front suspension.........
Andy
An expert is someone who knows more and more about less and less
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Peteff
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| posted on 14/3/06 at 06:35 PM |
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I've made this one 25mm taller and I've also leant the top of the assembly back an extra 25mm. I thought about cutting the points off and
welding a curved 25mm strip round to cover the cut but I may just modify the nosecone to cover them and the top mounts for the wishbones.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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