cutting pipe with angle grinder

**dearing5** · 14-09-2011 16:11

i intend on replacing some of my exhaust! instead of making a whole system like last time!

thing is i only have a hack saw or angle grinder but how can i get the cuts straight? its so much easier to weld and obviously better fit..

im cutting 3" stainless pipe

**Wellie** · 14-09-2011 16:15

wrap a peice of paper round and mark it up - 1mm disk in the grinder

**dearing5** · 14-09-2011 16:16

i tried a roll of parcel tape but still didn't cut perfectly straight..will try your method.

**Tathan** · 14-09-2011 17:13

use a bandsaw lol

**bunnymofo** · 14-09-2011 17:16

i use a chopsaw. but if doing with grinder, just cut as best u can then try and grind it strate.

**dearing5** · 14-09-2011 17:23

i haven't got a band saw or mitre saw etc

grinder will have to do!! i will just use the method im doing.. its straight enough, plus i can fill slightly bigger gaps with the weld.

any more ideas or anyone selling a saw let us know

**bunnymofo** · 14-09-2011 17:31

have you got 9" grinder ? put pipe in vce and you should get a decentish cut.

**dearing5** · 14-09-2011 17:42

nah i haven't.

**Nemesis** · 14-09-2011 18:11

Don't try and go through with 1 cut.

Mark a cutting line round the pipe, and cut in a small section, then rotate the pipe and cut along the line again. Then file it back to your actual line you need to be at.

**dearing5** · 14-09-2011 20:33

yeah i had a go on a spare bit, took my time doing it in sections so i stayed on the line.

i think my parcel tape trick will work i just need a longer bit of pipe!

**davecavcon** · 14-09-2011 20:43

buy an exhaust cutter, proper tool for the job. or hire one
or possibly borrow one off a garage.
youll never get it 100% with just a grinder, but at the same time you cant do it wrong with a proper cutter!

**Astraghoul** · 14-09-2011 21:15

if you can get to worthing ill borrow the garages exhaust cutter over the weekend

**dearing5** · 15-09-2011 09:31

Originally Posted by Astraghoul

if you can get to worthing ill borrow the garages exhaust cutter over the weekend

nice offer but i would do it during the week

**dewismotorsport** · 15-09-2011 20:13

Stick a jubilee clip on and use it as a guide, put the screw part at the bottom and take your time. Then use a sheet of 40 grit sand paper on a flat worktop and rub the pipe in a circular motion on it and that will take the highs off it giving you a nice flat straight edge to weld with

**jamied** · 15-09-2011 20:23

Laser 2930 Exhaust Pipe and Tubing Cutter

£16

**Benn** · 15-09-2011 20:53

Just use the hack saw.

**dearing5** · 16-09-2011 15:54

Originally Posted by jamied

Laser 2930 Exhaust Pipe and Tubing Cutter

£16

they any good??

dewis i will give it a go.

**dewismotorsport** · 16-09-2011 18:05

Originally Posted by dearing5

they any good??

dewis i will give it a go.

Probably struggle with stainless as I bet them cutters are more aimed at the softer mild steel

**dearing5** · 16-09-2011 18:10

i will try your method mate.. might give it a go in a sec.

ideas on angles? like 30deg 45 etc or a taking the piss? lmao

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