Maniak, this is for you, but like shawn said, I have more on this subject.
At any rate I needed a piece of coped tubing for the cage extension and thought that I'll take some pics as I went along.
Now this is by far the easiest with a 90 deg attachment. A little more complex when doing other angles.
From walking over to the Makita chop saw to finished product including sanding in side diameter with HS grinder took less then 45 seconds.
For ease of explaining I marked both sides that are going to get coped with the letter (A) which are 180 deg, apart.
Then I marked the letter (B) 90 degrees from (A).
So now the tube is indexed every 90 deg.
Here is where some people may get a little confused when I say I use a Chop saw to cope the tube.
I
Do not hold the tube up at an angle and try to cut the cope.
All cuts are made with the tube flat on the saw table and blade perpendicular to tube.
When looking down at tube I basically do not even see the (A) side even though this will be the coped side.
I just bring the saw down on the (B) side and it cuts through like a knife going through hot butter on the blue line that I made for ease of explaining.
Then rotate tube 180 deg. to other (B) and do other side.
And there is the semi finished cope.
Next was a few seconds with grinder to clean up the cuts. Since were dealing with a 3 dimensional object, I grounded down a little where the tabs stick out to wrap around the adjoining tube. Got to allow for the thickness of the wall.
And here is the fit that might even hold water LOL.
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Wait until you see the Total Carnage I did to the Passanger side dash.
I did not like it anyway with that poor excuse of a glove compartment
Well I got the hole and tube through and matches the other as far as angle.
Hmm, some more tubing, you think for the pass. side dash? Complete with a custom spot for the MSD box.
All those wires that are useless will be out of there.
Who knows, once the aluminum dash is back in there, some tube work for that may also just be around the corner
Oops, got to go, I hear my Sazall calling me.