The Raven Posted December 9, 2007 Share Posted December 9, 2007 Ok i admit it i tried to cut my old bonnet to vent it, along the lines of the ones in the DIY bonnet topic it doesnt look to bad however im not happy with it at all. I know i should leave it well alone but i wont, uk spec bonnet will cost to much and nearly all the other options seem "chav" anyone got any other ideas? Failing that i will break out the dremmel and try again. Quote Link to comment Share on other sites More sharing options...
Pixelfill Posted December 9, 2007 Share Posted December 9, 2007 Pics ? Mike Quote Link to comment Share on other sites More sharing options...
The Raven Posted December 9, 2007 Author Share Posted December 9, 2007 Pics ? Mike Hell no! im not showing the shamefull attempts so you all can laugh! 3 different types of cutting where used. 1 Hand saw and file (got the best result so far) 2. Hand saw and grinder (no no) 3. Pissed off and grinder (deffo not) Quote Link to comment Share on other sites More sharing options...
hiten55 Posted December 9, 2007 Share Posted December 9, 2007 how can we "advise" without pics of whats left? Quote Link to comment Share on other sites More sharing options...
The Raven Posted December 9, 2007 Author Share Posted December 9, 2007 Hence the reason its the "Old bonnet" there is not alot left of it. I used it to practice things on hence losing my marbles and hacking it with a grinder after catching my finger. Maybe just maybe i might take a pic of the not so bad side of it in the morning. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted December 9, 2007 Share Posted December 9, 2007 As it alloy its a bit hard to weld, so your limited, i have done large vents in steel bonnets but for alloy i would advise a dremmel with the reinforced cutting wheels,as its thin and very easily distorted, fileing is difficult, you need experience in doing this right;) you can use fibreglass bridger paste to build up and contour, but when i have done it on steel, i have welded rods to it to give some rigidity and support. Quote Link to comment Share on other sites More sharing options...
The Raven Posted December 9, 2007 Author Share Posted December 9, 2007 As it alloy its a bit hard to weld, so your limited, i have done large vents in steel bonnets but for alloy i would advise a dremmel with the reinforced cutting wheels,as its thin and very easily distorted, fileing is difficult, you need experience in doing this right;) you can use fibreglass bridger paste to build up and contour, but when i have done it on steel, i have welded rods to it to give some rigidity and support. Im cheating and trying to cut along the support lines the two long parts to the left and right. so support isnt a problem. the problem it the finish. i dont want to have to put an edging around the holes but i fear i will have too. Im so going to mess this up real bad http://mkivsupra.net/vbb/attachment.php?attachmentid=63275&d=1188251772 i want it to look like this Quote Link to comment Share on other sites More sharing options...
ECK Posted December 9, 2007 Share Posted December 9, 2007 is that my old bonnet lost then? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted December 9, 2007 Share Posted December 9, 2007 All i can suggest is that once you have cut your shape as close to the supports as you dare, use a fine file and use it at a shallow angle to the edge, almost like your filing along the length of the cut, takes a bit of practise and a steady hand , but it should give you a good finish without distorting the alloy. Quote Link to comment Share on other sites More sharing options...
The Raven Posted December 9, 2007 Author Share Posted December 9, 2007 is that my old bonnet lost then? No mate your one is fitted:p Black on a red car and i dont care what anyone says i like it. The old red one was dented anyway so no big loss Quote Link to comment Share on other sites More sharing options...
ECK Posted December 9, 2007 Share Posted December 9, 2007 No mate your one is fitted:p Black on a red car and i dont care what anyone says i like it. glad i could help;) Quote Link to comment Share on other sites More sharing options...
The Raven Posted December 9, 2007 Author Share Posted December 9, 2007 glad i could help;) Mrs posted you a xmas present today i hear tesco is doing a deal on beer;) and do try to pick your mum up some chocs:search: Quote Link to comment Share on other sites More sharing options...
ECK Posted December 9, 2007 Share Posted December 9, 2007 Mrs posted you a xmas present today i hear tesco is doing a deal on beer;) and do try to pick your mum up some chocs:search: why thank you ill make sure she gets the rocher's;) Quote Link to comment Share on other sites More sharing options...
The Raven Posted December 9, 2007 Author Share Posted December 9, 2007 why thank you ill make sure she gets the rocher's;) And i promise not to cut the bonnet till i have prefected the art, or given up and given it to someone that can;) Quote Link to comment Share on other sites More sharing options...
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