Any Carpenters, or DIY specialists about?

The_Monk · 29th May 2008, 11:02

I am making a few custom boxes to house some clear plastic tubing which will be approx 127mm wide. I have a router and router table that I like to use when cutting out because of the easier and clean lines that can be edged in different detail. Whats the best way to cut out perfect circles? I'm thinking along the lines of a template like I do for other things, but how do I make such pricisely sized circles to start with.

So far I need one 130mm diameter, 140 diameter with a rebate 127mm from the middle. Plus I will need other odd sizes. I could have them done on CNC from a company I've seen, but i'm begging, stealing and borrowing at the moment for projects, so if I can make them myself I will.

Any ideas?

Many Thanks

CDTi · 29th May 2008, 11:18

You should be able to use the guide that came with the router. There is probably a hole in it that you screw to the piece you are working on.

I have never cut anything circular, but it seems straight forward enough.

Sancho · 29th May 2008, 11:45

One of these:

http://www.amazon.co.uk/Silverline-A.../dp/B000LFVYGI

or buy a jig or trammel bar for your router - they are often make-specific though.

The_Monk · 29th May 2008, 12:34

Many thanks, I have a bar that came with the router, I thought it was a guide for a straight edge! I'll investigate when I get home.

Sancho · 29th May 2008, 13:08

You could always use a nail and a bit of string.....

CDTi · 29th May 2008, 13:10

The guide should consist of 2 bars attached to a metal plate. It is multifunctional i.e. to follow straight edges, curved edges etc, depending on what further attachments are used.

black olive · 3rd June 2008, 08:44

http://www.woodworkingtips.com/etips/etip102000sn.html

http://www.diynetwork.com/diy/tl_pow...270388,00.html

29th May 2008, 11:02	#1
The_Monk I really should get out more....... - Join Date: Nov 2006 Location: - Posts: 2,586 Thanks: 0 Thanked 3 Times in 2 Posts	Any Carpenters, or DIY specialists about? I am making a few custom boxes to house some clear plastic tubing which will be approx 127mm wide. I have a router and router table that I like to use when cutting out because of the easier and clean lines that can be edged in different detail. Whats the best way to cut out perfect circles? I'm thinking along the lines of a template like I do for other things, but how do I make such pricisely sized circles to start with. So far I need one 130mm diameter, 140 diameter with a rebate 127mm from the middle. Plus I will need other odd sizes. I could have them done on CNC from a company I've seen, but i'm begging, stealing and borrowing at the moment for projects, so if I can make them myself I will. Any ideas? Many Thanks

29th May 2008, 11:18	#2
CDTi This is my second home No longer in the MGR club Join Date: Nov 2006 Location: Tipperary Posts: 3,933 Thanks: 35 Thanked 51 Times in 35 Posts	You should be able to use the guide that came with the router. There is probably a hole in it that you screw to the piece you are working on. I have never cut anything circular, but it seems straight forward enough. __________________ 'Tis better to be silent and be thought a fool, than to speak and remove all doubt.

29th May 2008, 11:45	#3
Sancho Loves to post Mercedes 220SE Coupe, Mitsubishi Delica, Nissan Micra Join Date: Jan 2008 Location: London Posts: 358 Thanks: 0 Thanked 0 Times in 0 Posts	One of these: http://www.amazon.co.uk/Silverline-A.../dp/B000LFVYGI or buy a jig or trammel bar for your router - they are often make-specific though. Last edited by Sancho; 29th May 2008 at 12:01..

29th May 2008, 13:10	#6
CDTi This is my second home No longer in the MGR club Join Date: Nov 2006 Location: Tipperary Posts: 3,933 Thanks: 35 Thanked 51 Times in 35 Posts	The guide should consist of 2 bars attached to a metal plate. It is multifunctional i.e. to follow straight edges, curved edges etc, depending on what further attachments are used. __________________ 'Tis better to be silent and be thought a fool, than to speak and remove all doubt.

3rd June 2008, 08:44	#7
black olive I really should get out more....... 260 SE vin 214 ( last mark 1 260 ) Join Date: Dec 2006 Location: Lancashire Posts: 2,009 Thanks: 1 Thanked 8 Times in 4 Posts	http://www.woodworkingtips.com/etips/etip102000sn.html http://www.diynetwork.com/diy/tl_pow...270388,00.html __________________ [SIGPIC][/SIGPIC]

29th May 2008, 12:34	#4
The_Monk I really should get out more....... - Join Date: Nov 2006 Location: - Posts: 2,586 Thanks: 0 Thanked 3 Times in 2 Posts	Many thanks, I have a bar that came with the router, I thought it was a guide for a straight edge! I'll investigate when I get home.

29th May 2008, 13:08	#5
Sancho Loves to post Mercedes 220SE Coupe, Mitsubishi Delica, Nissan Micra Join Date: Jan 2008 Location: London Posts: 358 Thanks: 0 Thanked 0 Times in 0 Posts	You could always use a nail and a bit of string.....