racebreed1
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| posted on 20/10/08 at 03:34 PM |
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round tube chassis
hello all
was having a thought using rounded tube could you not cut a hole in the connecting tube using hole saw feed the tube in and weld all around it? would
hold together with afew tacks or would this destroy the integrity of the tube?
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Mr Whippy
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| posted on 20/10/08 at 03:44 PM |
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don't think that's really a good plan as you will have weakened the tube so much that when you weld it, it will be far more likely to
twist on cooling. Why do you want to do that?
also if you do a mock up with some card tubes and glue, you'll find it is not as strong as if done normally, especially when the tube with the
hole in it is in compression
[Edited on 20/10/08 by Mr Whippy]
Fame is when your old car is plastered all over the internet
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racebreed1
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| posted on 20/10/08 at 03:52 PM |
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quote:
Originally posted by Mr Whippy
don't think that's really a good plan as you will have weakened the tube so much that when you weld it, it will be far more likely to
twist on cooling. Why do you want to do that?
also if you do a mock up with some card tubes and glue, you'll find it is not as strong as if done normally, especially when the tube with the
hole in it is in compression
[Edited on 20/10/08 by Mr Whippy]
good fit thats all presume though you can do the same on the end of a hole saw
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Paul TigerB6
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| posted on 20/10/08 at 04:08 PM |
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There is a tube mitering programme floating around that allows you to print out a template to allow you to manually shape the tubes.
In fact there's a couple!! Click me
[Edited on 20/10/08 by Paul TigerB6]
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Alan B
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| posted on 20/10/08 at 04:14 PM |
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quote:
Originally posted by racebreed1
hello all
was having a thought using rounded tube could you not cut a hole in the connecting tube using hole saw feed the tube in and weld all around it? would
hold together with afew tacks or would this destroy the integrity of the tube?
If I understand you correctly do you mean basically you want use a holesaw to create your circular notch in the adjoining tube?
If so, that is exactly the way many of us round tube users build our frames. However, we mostly use an inexpensive tool that holds the tube at the
required angle and holds the holesaw inline.
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Mr Whippy
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| posted on 20/10/08 at 04:16 PM |
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still going to twist more but feel free to get some tube and try. are you going to make a fancy supporting jig for the hole saw or do it by eye?
Fame is when your old car is plastered all over the internet
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smart51
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| posted on 20/10/08 at 07:14 PM |
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That's how reliant did it. Large rectangular box section along the length of the car with smaller round section poking through holes in the
square. Weld round both faces of the join.
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mark chandler
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| posted on 20/10/08 at 07:48 PM |
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Good enough for Atom's suspension bell crank mountings, they support the weight of the car.
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kendo
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| posted on 20/10/08 at 08:09 PM |
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same size?
Also if the two tubes are the same size (i.e. diameter) then you won't be able to do that as all you end up with is what you seem to want to
avoid.
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