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Post by Deleted on Dec 3, 2016 7:48:16 GMT
How wide is the section to be removed, and how deep at it's deepest point? If I remember right Ricco has a Yamaha RXS 100, the stanchions are 30mm diameter, the legs will be around 45-50mm diameter. Depending where he needs to cut it will be at least 40mm wide, easily doable.
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Post by JohnV on Dec 3, 2016 8:01:33 GMT
The only thing of theirs (Erbauer that is) that I do struggle with is the cordless jig saw - you have to attempt a circle to get a staight line... I must get around to taking that back. That is a shame because I would have suggested the same as Magnetman. A lot of jobs in steel can be done neatly and safely with a jigsaw fitted with the right metal cutting blades, certainly 4mm is not a problem. I have cut shapes out of steel twice that thickness on Sabina. Angle grinders are a lot scarier and harder for a beginner to use but if you own a steel boat they are an essential item in your tool box. added edit ................. Dammit should have done two posts, one for Ricco belowOn the comments about sparks, be very very careful when using near glass. always cover windows etc with a bit of cardboard or the like. the grit particles from an angle grinder even outside the range where you can see them glowing will seriously damage windows. The grit particles will actually imbed themselves into the surface of the glass (even toughened). Don't ask me how I know this
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Post by Deleted on Dec 3, 2016 8:16:06 GMT
Yes. One of my portholes (second hand) has a sort of pitting damage to the glass which I am pretty sure was the result of previous owner not covering it when using a grinder nearby. It won't clean off. Don't know if it could be polished out. Good advice from Johnv I've got a cheap silver line 115mm 230v angle grinder and a Makita 100mm 230v unit. The Makita is much better but the silver line thing takes a fair bit of abuse I have had smoke coming of the motor vents but give it a rest and its happy. Worth getting a 115mm one as I noticed a lot of shops including screwfix don't stock 100mm flap discs. I use flap discs for cleaning paint off wood when making things from reclaimed timber.
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Post by Deleted on Dec 3, 2016 8:26:34 GMT
Yes. One of my portholes (second hand) has a sort of pitting damage to the glass which I am pretty sure was the result of previous owner not covering it when using a grinder nearby. It won't clean off. Don't know if it could be polished out. Good advice from Johnv I've got a cheap silver line 115mm 230v angle grinder and a Makita 100mm 230v unit. The Makita is much better but the silver line thing takes a fair bit of abuse I have had smoke coming of the motor vents but give it a rest and its happy. Worth getting a 115mm one as I noticed a lot of shops including screwfix don't stock 100mm flap discs. I use flap discs for cleaning paint off wood when making things from reclaimed timber. I had an Astra that came to me with a Braille windscreen - someone had been enthusiastic with a grinder near it. Wiper blades didn't last long!
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Post by Deleted on Dec 3, 2016 8:37:33 GMT
Yes. One of my portholes (second hand) has a sort of pitting damage to the glass which I am pretty sure was the result of previous owner not covering it when using a grinder nearby. It won't clean off. Don't know if it could be polished out. Good advice from Johnv I've got a cheap silver line 115mm 230v angle grinder and a Makita 100mm 230v unit. The Makita is much better but the silver line thing takes a fair bit of abuse I have had smoke coming of the motor vents but give it a rest and its happy. Worth getting a 115mm one as I noticed a lot of shops including screwfix don't stock 100mm flap discs. I use flap discs for cleaning paint off wood when making things from reclaimed timber. I had an Astra that came to me with a Braille windscreen - someone had been enthusiastic with a grinder near it. Wiper blades didn't last long! That reminds me I need new wiper blades. keep forgetting so will order some now. Eurocarparts Ta
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Post by bodger on Dec 3, 2016 9:08:33 GMT
On the comments about sparks, be very very careful when using near glass. always cover windows etc with a bit of cardboard or the like. the grit particles from an angle grinder even outside the range where you can see them glowing will seriously damage windows. The grit particles will actually imbed themselves into the surface of the glass (even toughened). Don't ask me how I know this err .......................... snap !!
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Post by bodger on Dec 3, 2016 9:14:38 GMT
do not use a cutting disc to grind out a a semi-circle as you describe, use a grinding disc. a cutting disc is about 1mm thick and will quickly shatter if used for anything other than a straight cut. a grinding disc is about 5mm thick and can be used in lieu of a file, gently grinding away the steel to be removed. a 4.5" angle grinder is a very useful tool to have around. I notice on 'Wheeler Dealers' programme they use a cheapy the same as mine. always use the removeable guard, always point the grinder away from your body. Quite, but the initial incision must be made. ehh?? by the way, I have been using angle grinders regularly since 1968, initially 225mm models - they are a pig to handle till you get used to them. I never needed a cutting disc until a year ago when I had to cut a lot of RHS into lengths. cutting discs are only useful if you want to cut something in half and do not want to lose 10mm of metal while doing it. At the rate they wear down, it is probably cheaper to use grinding discs.
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Post by Deleted on Dec 3, 2016 9:19:45 GMT
Quite, but the initial incision must be made. ehh?? by the way, I have been using angle grinders regularly since 1968, initially 225mm models - they are a pig to handle till you get used to them. I never needed a cutting disc until a year ago when I had to cut a lot of RHS into lengths. cutting discs are only useful if you want to cut something in half and do not want to lose 10mm of metal while doing it. At the rate they wear down, it is probably cheaper to use grinding discs Nearly 50 years and you still can't use one properly?! Re 9" grinder, get a tin of spinach I'd be lost without an angle grinder. Get yourself a pack of slitting discs, the accuracy you can cut to with those is really useful.
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Post by Deleted on Dec 3, 2016 9:24:12 GMT
ehh?? by the way, I have been using angle grinders regularly since 1968, initially 225mm models - they are a pig to handle till you get used to them. I never needed a cutting disc until a year ago when I had to cut a lot of RHS into lengths. cutting discs are only useful if you want to cut something in half and do not want to lose 10mm of metal while doing it. At the rate they wear down, it is probably cheaper to use grinding discs Nearly 50 years and you still can't use one properly?! Re 9" grinder, get a tin of spinach I'd be lost without an angle grinder. Get yourself a pack of slitting discs, the accuracy you can cut to with those is really useful. The thin dics are also great for making a clean cut on 70 mm battery cable.
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Post by JohnV on Dec 3, 2016 9:32:31 GMT
Nearly 50 years and you still can't use one properly?! Re 9" grinder, get a tin of spinach I'd be lost without an angle grinder. Get yourself a pack of slitting discs, the accuracy you can cut to with those is really useful. The thin dics are also great for making a clean cut on 70 mm battery cable. Animal !!! you shouldn't be using your angle grinder anywhere near your battery's cables
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Post by Deleted on Dec 3, 2016 9:34:40 GMT
The thin dics are also great for making a clean cut on 70 mm battery cable. Animal !!! you shouldn't be using your angle grinder anywhere near your battery's cables View AttachmentWhy not? What would you suggest cutting them with?
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Post by JohnV on Dec 3, 2016 9:38:33 GMT
You shouldn't cut them ..... you can't get big enough choc blocks to join them up again (It was a joke)
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Post by JohnV on Dec 3, 2016 9:44:59 GMT
Actually I use these ..... but I'll be honest I bought them and hydraulic crimpers when I was using them regularly on large cables before I retired. there is no way I would spend that much now and a cutting disc is a pretty good alternative (I was only pulling your chain)
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Post by Deleted on Dec 3, 2016 9:46:07 GMT
You shouldn't cut them ..... you can't get big enough choc blocks to join them up again (It was a joke) Ho ho ho! If I did cut through them, I would make sure it was at 45 degrees and re-attach with Mitre glue. (if any one is unfortunate enough to stumble upon this thread in the distant future, the Mitre glue is reference to another thread posted at the same time, and not an actual suggestion for re-attaching battery cables)
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Post by lollygagger on Dec 3, 2016 9:50:09 GMT
I love my 115mm angle grinder/slitting discs. I've hacked my way through thousands. Many have broken and hit me but not hurt me. They flex amazingly without breaking. I cut thin ply with them too and perspex and pretty well anything, but I remember what a worrying handful it was when I had my first go and rightly so. Safety advice Rule 1 : keep your face and neck out of line. Rule 2 : cut so that the rotation is pulling the grinder away from you and out of the cut. If you find you have to rearrange everything to achieve those, even if it's a pain and takes ages do it. If you have to turn the boat round, turn it round. After all that, for a grinder virgin, I'd go with the jigsaw advice if you can fit it in.
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