cutting a large cylinder at an angle.
I'd like to chop a thin walled cylinder at an angle, much like I'd achieve by putting a bit of pipe in a chop saw. However, it's about 2ft diameter.
Any nifty tricks to get a good mitre angle?
I have an app that can be used. To make a paper template to wrap around the pipe to mark it. If you get the exact diameter in mm i can post a screen shot of the measurements.
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Got a cross line laser level.
Wrap the beam around as far as poss then turn and align to previously marked a couple of times to complete.
Never tried but can't see why it wouldn't work.
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A template as Anto44 says is the proper way to do it, its a simple enough development.
Have you got a laser level? Im wondering if you couldnt use that to mark out one side, and then rotate it for the other?
edit: im sure a template is better though!
That looks ideal! Can I ask what the app is?
Nope, unfortunately not. I had thought something like that might work though.
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Use a piece of elastic or string and wrap into those 2 cuts. Gives nice straight lines. Especially if spray paint over the string then remove gives you a nice sharp line to follow.
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when I asked the question earlier this year, I was pointed to a tool which was basically an articulated arm carrying a piece of chalk on a "v" plate base.
the base rested on the cylinder (is it orange? ) and the arm swung round to a particular angle, then the arm carried the chalk along that angle, around the cylinder.
it's still on my "to do" list, and I've forgotten the name of the tool.
Wrap a length of string around the cylinder, secure it with masking tape at intervals then draw the cutting line on with a sharpie. Templates will need a piece of paper (or bits stuck together) over 6' in length.
Templates will need a piece of paper (or bits stuck together) over 6' in length.
Not really, the biggest one I've done was a 2 mtr dia hopper that had to have a 30 deg sloping top cut on it, I drew it out to scale to get some dimensions, drew vertical lines on the job all the way round the circumference and marked the cut points direct on the job. it was a 5mm wall hopper and was then cut with oxy acetylene.
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A hillbilly way is sit it in a tank of water at the angle you want then chalk mark the wet line, seen the old guys do it a few times down the old loco yards.
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Thanks for all the replies - that app looks ideal!
It's for an oil drum but didn't want to start off yet another thread about how not to blow oneself up. Needless to say, precautions will be taken.
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