ajw
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| posted on 25/9/12 at 06:10 PM |
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cutting bonnet
Anybody tell me the best cutting equipement to cut opening for throttle boddies in a new fibreglass bonnet. Want to leave clean edge
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big-vee-twin
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| posted on 25/9/12 at 06:20 PM |
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A Dremmel would be my preferred tool for that.
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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JonT
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| posted on 25/9/12 at 06:21 PM |
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A recommendation for this sort of stuff would be to buy a Dremel, they're fantastic...
Presuming you don't have one, I'd personally cover the area to be cut first with masking tape, drill a hole in each corner, use a hacksaw
blade covered in duck tape and then cover a wooden block with sandpaper (to get a straight edge) and sand back where necessary
Jon
"People were created to be loved, things were created to be used. The reason why the world is in CHAOS is because things are being loved and people
are being used"
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Hellfire
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| posted on 25/9/12 at 06:23 PM |
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We stitch drilled the shape we wanted to remove and then used a pad saw to cut the links between the holes and finished the edges with the dremel.
It's a good idea to use masking tape before drilling/cutting/sanding to stop the gelcoat from chipping and also makes the shape easier to mark
out with a pencil.
Phil
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austin man
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| posted on 25/9/12 at 08:32 PM |
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I used a dremmel with a drill bit in it then sanded the edge, you can buy a cutter for the dremmel or Dremmel clones
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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maccmike
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| posted on 26/9/12 at 01:36 AM |
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any type of rotary tool like a dremel
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pewe
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| posted on 26/9/12 at 08:56 AM |
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As above Dremel or similar but try to find some tile cutters (like miniature rotary rasps) - think there are some Bosch ones. Here you go
ROTOZIP RK164 ZIP BIT 3.2mm TILE CUTTER 5034914005955 | eBay
Mask out the shape you require and carefully cut the hole - remembering once it's cut you can't put it back - ask me how I know!
HTH.
Cheers, Pewe10 
[Edited on 26/9/12 by pewe]
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40inches
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| posted on 26/9/12 at 01:43 PM |
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I used lots of 2" masking tape to mark out the shape on, hole saw and cordless jig saw with a fine steel blade.
 
Vents
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fimi7
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| posted on 27/9/12 at 09:39 AM |
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Agree thick painters tape and a holesaw, if you want to make a perfectly round hole, my big question is how do you figure out where to cut. Measuring
that out can be tricky...
--- Ali
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40inches
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| posted on 27/9/12 at 01:10 PM |
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quote:
Originally posted by fimi7
Agree thick painters tape and a holesaw, if you want to make a perfectly round hole, my big question is how do you figure out where to cut. Measuring
that out can be tricky...
Take the radius of the hole you are cutting and reduce the size of the shape you want by that amount, that will give you the hole saw starting
points, then join the edges of the holes with the jig saw. Simples?
 
Description
Ah! Do you mean cutting the hole exactly, so that whatever is poking through the bonnet is central?
[Edited on 27-9-12 by 40inches]
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fimi7
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| posted on 27/9/12 at 04:05 PM |
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Yep, the tricky part is getting it central so the trumpets do not look one sided
--- Ali
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