TR1 Length???!!!

[Airhead]

Hi all

I am currently tearing what is left of my hair out. I've got into 3d now and am at the point that I have cut tr1/2 @1472 with 10 degree paralell ends. I offered it up and it is totally wrong. I have triple checked all of my measurements and angles and they are fine but the top rail is about 20mm to short. Any ideas what is going wrong? All of the uprights U3, 4, 5 & 6 are all situated correctly and at 90 degrees to the bottom rails - which are flat on the table.....GRRRRRRR

[gingea1pom]

Wait one HandyAndy will be a long before you know it.

[HandyAndy]

1472mm with the 10degree cut is correct as you say,

so

have you taken into account that TR1 & TR2 meet the REAR face of the front frame?
If you do, then may I ask if your front frame has the 75mm "lean back angle" created when making the front frame?

If so,
then don,t forget that TR1 & TR2 sit on the forward leading edge of the uprights U3 & U4, I think its U3 & U4 (sorry, not got my book with me at home).

hope this helps

cheers
andy

[Airhead]

Unfortunately all those points are already considered. The front frame is spot on as are all of the base measurements. I have TR1 18mm short. Hang on - I'll get some photos.

[HandyAndy]

Wait one HandyAndy will be a long before you know it.

:o :D :p


A photo will be a great help ;)

cheers
andy

[gingea1pom]

OMG that reply is without the book!:eek:

Andy, go to your local collage and see if you can do an NVQ in the Haynes Roadster Chassis, because you would not have to revise!:D :D

Pictures would be good, us meer mortals might have a chance:p

Cheers Ginge

[HandyAndy]

OMG that reply is without the book!

Andy, go to your local collage and see if you can do an NVQ in the Haynes Roadster Chassis, because you would not have to revise!

Pictures would be good, us meer mortals might have a chance

Cheers Ginge

:o
The TR1 & TR2 rails are the easiest to remember as they are the longest single length tubes within the chassis:)

Maybe I do need to get out more :eek: :D

cheers
andy

[Airhead]

OK:

TR1 resting in place -
http://www.images.spiderwebdesign.co.uk/seven/tr1/tr1.jpg

The discrepancy -
http://www.images.spiderwebdesign.co.uk/seven/tr1/short.jpg

The frame 75mm measured with a plumb:
http://www.images.spiderwebdesign.co.uk/seven/tr1/ff75mm.jpg

Measurement from BR12 to BR11:
http://www.images.spiderwebdesign.co.uk/seven/tr1/br11.jpg


More to follow...

[Airhead]

Measurement from BR12 to BR10:
http://www.images.spiderwebdesign.co.uk/seven/tr1/br10.jpg

Measurement from BR12 to FF1:
http://www.images.spiderwebdesign.co.uk/seven/tr1/ff1.jpg

Finally 90 degrees on U5 and U6:
http://www.images.spiderwebdesign.co.uk/seven/tr1/u5.jpghttp://www.images.spiderwebdesign.co.uk/seven/tr1/u6.jpg

[Airhead]

Aha! Well spotted - That sorted it - on closer examination FF1 wasn't sitting flat on the table - a bit of a wrnch to make the measurements as you describe and hey presto TR1 FITS!!!!!!!!

[Airhead]

Where did Andys post go?

[HandyAndy]

Aha! Well spotted - the only problem I have with that is that I used the jig layout from the book - how can I have the frame dimensions so far out?

I deleted my post as I wanted to check your photos in more detail & make sure I was giving you correct info, wish I had my book at home :(

will get back to you asap.

other than a poss prob with the front frame, can I ask if BR1 & BR2 are cut correctly? ( said with respect ),
what I mean is, when you marked out your build table did you mark out the position of the base rails THEN add 25mm forward for the front frame or did you include the 25mm of the front frame position?
sorry, i,m just bouncing my thoughts about here to try to solve the prob.

not doubting your work, just double checking possible hiccups.

cheers
andy

[Airhead]

No no no - you were right - I edited my post - see two above..

[HandyAndy]

No no no - you were right - I edited my post - see two above..

RESULT :)

glad i helped, sorry for posting then double checking, just me being over eager to help solve the prob :o :rolleyes: :D

cheers
andy

[Airhead]

You are a star mate - you should go into business :p

[HandyAndy]

You are a star mate - you should go into business

Can,t think of what to reply to that :D :p

Anyways.... now you can get cracking on your chassis & save what hair you,ve got left , LOL.

next bit to watch out for......... make sure the seat back angle is correct at 17degree,s , you,ll be thinking " I need another pair of hands" when doing the SB part codes ;)

well done on getting your chassis into 3D, you,ll soon be sitting in the drivers area going Brum Brum :D ( we,ve all done it too )

cheers
andy

[gingea1pom]

Nice,

2hrs 7mins problem sorted.

(Andy if you could try and keep your problem solving to under the hour):D :D :D

With reference to your brum, brum. I am more of a waaaaaarp waaaaaaarp, waaaaaaaaaaaaaaaarp, kind of guy.:eek:

[HandyAndy]

Nice,

2hrs 7mins problem sorted.

(Andy if you could try and keep your problem solving to under the hour):D

With reference to your brum, brum. I am more of a waaaaaarp waaaaaaarp, waaaaaaaaaaaaaaaarp, kind of guy.:eek:

BUT, there was 44 mins between the thread being started & my first reply ( I wasn,t logged on, as I was busy cutting a chassis ):p

I,m only using a CVH engine so its a Brum Brum for me :D

cheers
andy

[gingea1pom]

Andy,

I might have delusions of grandeur as I am CVH’ing it as well.:D

Cheers Ginge

[HandyAndy]

OMG that reply is without the book!

Andy, go to your local collage and see if you can do an NVQ in the Haynes Roadster Chassis, because you would not have to revise!



Cheers Ginge

Just had a thought...............

I wonder if I could enter the "Mastermind Quiz" & have the Roadster chassis as my specialist subject ??? :o :p

I really must get out more ;) :D

cheers
andy

[Davey]

If you go brum broum and/or waaaarp waaaarp with a CVH what noises should I be making?

D.

[baz-r]

i had the same thing when i got to the same point but i had 10mm both sides a simple fix was to push both tr1 and 2 trough the f frame as leavers :rolleyes: and tweek the top back to make it all meet up :rolleyes:
funny as i mesured it all up and was getting the same results but a bit of brute force fixed it
nearly soiled myself in the prosess :eek: