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Author: Subject: Hand tool for cutting exhaust pipe
Slimy38

posted on 23/9/17 at 10:59 AM Reply With Quote
Hand tool for cutting exhaust pipe

i want to have a go at making lobster bends in exhaust pipe, not for any practical use but purely because it looks interesting! But I need a method of cutting angled cuts in the exhaust pipe.

I've been looking at things like a hand mitre saw from the likes of Toolstation etc, but apart from them not accommodating 3 inch pipe they don't get good reviews. I also don't want a powered saw because it's a bit much of an outlay for an 'experiment'.

I tried to set up a jig with spare metal, but while I managed to get one cut done the jig ended up losing it's face so I doubt it'll keep the blade in line for more than one or two more cuts.

Can anyone suggest how I can do it?

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Angel Acevedo

posted on 23/9/17 at 12:39 PM Reply With Quote
If you want a more permanent jig, you may want to sleeve four bolts with stainless steel tubing so the hacksaw "rides" the rollers without cutting.
With a little wits, you may be able to make it adjustable in case you want to do different angles.
Like this, but the Pins roll...
https://www.google.com.mx/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi5-q_mqbvWAhVE7IMKHSxpA _oQjRwIBw&url=http%3A%2F%2Fwww.waynegoldmanengineering.com%2FModel-534-Mitre.html&psig=AFQjCNFBZdaQumgqHYIPm0CrB_GAks02Fg&ust=150625674319 9319





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Slimy38

posted on 23/9/17 at 12:51 PM Reply With Quote
That's brilliant, thanks!
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paulc

posted on 23/9/17 at 06:35 PM Reply With Quote
I used the web site linked to print out templates.

https://www.blocklayer.com/pipe-miter.aspx

Wraped the template round the tube, marked with a permanent marker, and cut it with a hacksaw.
(Stainless is pretty hard on the hacksaw blade)

Worked pretty well on my exhaust. There are also templates for t joints etc which i used for my roll hoop.


Paul

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Angel Acevedo

posted on 23/9/17 at 07:38 PM Reply With Quote
quote:
Originally posted by paulc
I used the web site linked to print out templates.

https://www.blocklayer.com/pipe-miter.aspx
... Worked pretty well on my exhaust. There are also templates for t joints etc which i used for my roll hoop.


Paul


Could you elaborate as how you used it to assemble your exhaust?

Thanks in advance.
AA





Beware of what you wish.. for it may come true....

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paulc

posted on 23/9/17 at 09:31 PM Reply With Quote
I needed a small bend to get everything to line up.

You can see it between the end of the manifold and the v-band joint.
It needed to be quite short as I bought fairly long silencers and was quite tight for space.


Description
Description



Description
Description



Paul C

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owelly

posted on 24/9/17 at 08:34 AM Reply With Quote
+1 for the paper templates thing! I made a 4" bend for my air intake from the side of a washing machine by cutting out the segments drawn using a paper template and then bending it into hoops before welding together and my chimney for my Pug V6 was hewn from stainless tube using paper templates. Thus:
Chimney lobster
Chimney lobster

Chimney lobster flappy disc
Chimney lobster flappy disc

Chimney lobster shiny
Chimney lobster shiny






http://www.ppcmag.co.uk

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Slimy38

posted on 24/9/17 at 07:35 PM Reply With Quote
Well, it works...




I just need to find a bit more time to weld it up. It took me a couple of hours to make the jig, and a couple of minutes to cut the sections. They're not particular aggressive bends for now, I just wanted to see if the process made sense to me.

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Angel Acevedo

posted on 25/9/17 at 03:16 AM Reply With Quote
quote:
Originally posted by Slimy38
Well, it works...

... It took me a couple of hours to make the jig,...




Come on...!!
Pics of the contraption...!!
No pics, no happen...
HHH... Just curious...
Best regards
AA





Beware of what you wish.. for it may come true....

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