Cutting an Ali cowl

Any topic that is not suitable for the other topic items
Mike Ellis
Posts: 130
Joined: January 15th, 2009, 7:37 pm
Location: Evesham
Contact:

Cutting an Ali cowl

Postby Mike Ellis » August 8th, 2017, 8:13 pm

Can anyone tell me the best way to cut slots in Ali cowls. Some people use coping saws but Although I have tried them I get no success. I need to cut 3 slots approx 3/4" wide and 6" long in the bottom of a 10" Ali radial cowl. Any ideas folks?

Alan Cantwell 1131
Posts: 1152
Joined: June 15th, 2009, 8:21 pm
Contact:

Re: Cutting an Ali cowl

Postby Alan Cantwell 1131 » August 8th, 2017, 9:38 pm

Drill a series of holes round the cut outs, cut through the holes with a file, trim to shape, basic metalwork,

Bob Thompson1894
Posts: 603
Joined: December 6th, 2008, 1:08 pm
Location: Notts
Contact:

Re: Cutting an Ali cowl

Postby Bob Thompson1894 » August 9th, 2017, 7:34 am

Get yourself a Dremel ,or even one of the cheap copies. You will wonder why you never had one before.

Cary Bailey
Posts: 172
Joined: January 26th, 2011, 7:43 am
Location: Stoke On Trent
Contact:

Re: Cutting an Ali cowl

Postby Cary Bailey » August 9th, 2017, 10:32 am

Mike, Dremel every time for me!!
Cary

Mike Ellis
Posts: 130
Joined: January 15th, 2009, 7:37 pm
Location: Evesham
Contact:

Re: Cutting an Ali cowl

Postby Mike Ellis » August 9th, 2017, 1:25 pm

Thanks Alan I do agree that seems possible but I assume I need to use a small drill only ? and to all you other nice guys trying to help me, I have a Dremel 3000 and lots of cutting disks BUT the disks shatter after a few seconds lol The thicker ones that clip onto the special shaft wont actually cut the cowl either, even with the dremel going flat out lol what cutters do you think I should be using?

User avatar
Rob Buckley
Posts: 403
Joined: March 14th, 2009, 12:08 pm
Location: Just Outside Bath
Contact:

Re: Cutting an Ali cowl

Postby Rob Buckley » August 9th, 2017, 2:03 pm

Very thin metal cutting disks used very carefully.

Aluminium is not the best stuff to cut with a grinder as it tends to block up the abrasive, but the Dremel should cut it easy enough. I've dome it with the metal cutting disks that clip onto the arbour quite happily before.
LMA Secretary - I've got a reasonable idea where you live!

David Baker
Posts: 39
Joined: April 10th, 2016, 9:25 am
Contact:

Re: Cutting an Ali cowl

Postby David Baker » August 9th, 2017, 2:43 pm

Mike
You need resin reinforced cutting discs for your dremel..
The reinforced discs have a crisis cross weave of fibre in them that is clearly visible on the outside of the discs.. This stops them shattering, they will easily cut your cowl without breaking and cut piano wire and cut just about anything for that matter!
Search resin reinforced cutting disc on eBay there are loads for sale and they are really cheap they are usually around 32mm diameter.. Don't get the ones that look smooth on the outside.. They shatter.
Hope this helps
David

Mike Ellis
Posts: 130
Joined: January 15th, 2009, 7:37 pm
Location: Evesham
Contact:

Re: Cutting an Ali cowl

Postby Mike Ellis » August 9th, 2017, 3:33 pm

Well I,ve sent for 3 different types of metal cutting tools for my Dremel that's about 55 pieces in all !!
I will let all you good people know how things progress when I have the cutters. Thanks to you all.

Alan Cantwell 1131
Posts: 1152
Joined: June 15th, 2009, 8:21 pm
Contact:

Re: Cutting an Ali cowl

Postby Alan Cantwell 1131 » August 9th, 2017, 3:51 pm

Use a 4 mm ish drill, ally clogs up any wheeled abrasive, and could cause you eye damage, and ally gets very. Hit, chain drill it, its safer

Bob Thompson1894
Posts: 603
Joined: December 6th, 2008, 1:08 pm
Location: Notts
Contact:

Re: Cutting an Ali cowl

Postby Bob Thompson1894 » August 10th, 2017, 8:00 am

I use the reinforced ones. The normal disks are a bit pathetic. Alan, even a drill can chuck bits of swarf around. Wear eye protection. Also a bit of lubrication with turps helps.

Alan Cantwell 1131
Posts: 1152
Joined: June 15th, 2009, 8:21 pm
Contact:

Re: Cutting an Ali cowl

Postby Alan Cantwell 1131 » August 10th, 2017, 9:23 pm

Ya don't say! :D

Bob Thompson1894
Posts: 603
Joined: December 6th, 2008, 1:08 pm
Location: Notts
Contact:

Re: Cutting an Ali cowl

Postby Bob Thompson1894 » August 12th, 2017, 10:58 am

Yep, Eye imagine youve been there... :)

Alan Cantwell 1131
Posts: 1152
Joined: June 15th, 2009, 8:21 pm
Contact:

Re: Cutting an Ali cowl

Postby Alan Cantwell 1131 » August 12th, 2017, 9:23 pm

Just a bit

Mike Ellis
Posts: 130
Joined: January 15th, 2009, 7:37 pm
Location: Evesham
Contact:

Re: Cutting an Ali cowl

Postby Mike Ellis » August 13th, 2017, 4:04 pm

now lads !! I,m glad of all the help that everyone's given me lol
I'm still waiting for my lorry load of various cutters to arrive ,and in the meantime trying to work out how to install and set Ali rivets with a 3mm head and a 1.5mm shank !! Another " basic metalwork " job that I,m struggling with !!!!!!!

Alan Cantwell 1131
Posts: 1152
Joined: June 15th, 2009, 8:21 pm
Contact:

Re: Cutting an Ali cowl

Postby Alan Cantwell 1131 » August 13th, 2017, 5:30 pm

i could have had the thing done ten times over by now

Mike Ellis
Posts: 130
Joined: January 15th, 2009, 7:37 pm
Location: Evesham
Contact:

Re: Cutting an Ali cowl

Postby Mike Ellis » August 13th, 2017, 6:47 pm

Oh what it must be like to be good at everything lol

Alan Cantwell 1131
Posts: 1152
Joined: June 15th, 2009, 8:21 pm
Contact:

Re: Cutting an Ali cowl

Postby Alan Cantwell 1131 » August 13th, 2017, 6:54 pm

Its my job, its what I am good at, its simple enough

Mike Ellis
Posts: 130
Joined: January 15th, 2009, 7:37 pm
Location: Evesham
Contact:

Re: Cutting an Ali cowl

Postby Mike Ellis » August 13th, 2017, 7:19 pm

Thats great Alan!!

It would be nice if we were all as good as you lol, still I'm pretty good at what I do even though its not metalwork,but perhaps even you wouldn't know where to start if you knew what it is that I do lol
However if you or anyone did ask I would gladly help them and not deride them for not being as good as me lol
You are welcome to come over, all found , and show me your expertise as I do admire a craftsman.

Alan Cantwell 1131
Posts: 1152
Joined: June 15th, 2009, 8:21 pm
Contact:

Re: Cutting an Ali cowl

Postby Alan Cantwell 1131 » August 13th, 2017, 8:46 pm

best of luck with it, bye

Mike Ellis
Posts: 130
Joined: January 15th, 2009, 7:37 pm
Location: Evesham
Contact:

Re: Cutting an Ali cowl

Postby Mike Ellis » August 13th, 2017, 9:16 pm

Have fun !!


Return to “General Discussion Topics”

Who is online

Users browsing this forum: No registered users and 1 guest