Do you have a router? Using the same technique and a straight cutting router bit measure from the cutting edge of the router bit to the pivot point and off you go.
You may find it helpful to form a sort of box like an open ended wrench to settle the router base into for additional security and if at all thick you should probably do it in a couple of passes of increasing depth but it does do a superb job. If you have a router table and enough room you can make a jig like that often used for a band saw and do it that way as well. Finally of course you can use a jig saw but it will not make as sweet a cut. I have not had much luck mounting the shoe plate to a stick and it is necessary that the leading edge of the blade is kept pretty well in line with the pivot point but if the guiding board is wide enough to keep the shoe easily parallel with it's end then this can work well too. I have used both a jig saw and a router for that sort of task but prefer the router. I think in your situation I would first cut the plywood in half so as to preserve the unnecessary cut. How thick a sheet are you cutting and why that size? Inquiring minds want to know. Dale Leavens, Cochrane Ontario Canada [EMAIL PROTECTED] Skype DaleLeavens Come and meet Aurora, Nakita and Nanook at our polar bear habitat. ----- Original Message ----- From: "Dan Rossi" <[EMAIL PROTECTED]> To: <BlindHandyman@yahoogroups.com> Sent: Tuesday, August 15, 2006 5:02 PM Subject: [BlindHandyMan] Cutting a curve > So, what would be the easiest or actually most accurate way of cutting a > quarter circle out of a sheet of ply? Actually, a half circle will work > also. Since the radius of the circle is 3 feet 10.5 inches, diameter of 7 > feet 9 inches, this fits nicely into a 4X8 sheet. I have an idea of just > making a strip of wood and somehow mounting a jig saw on one end of it. > Then driving a nail through the pivot point exactly 3 feet 10.5 inches > from the near side of the saw blade and then driving the nail into the > sheet somewhere pretty close to dead center near one long edge of the > sheet. > > Since I don't have a jig saw at the moment I am not sure how easy it will > be to mount the shoe of the saw to a strip of wood. Is this the way to do > this? > > Thanks. > > > -- > Blue skies. > Dan Rossi > Carnegie Mellon University. > E-Mail: [EMAIL PROTECTED] > Tel: (412) 268-9081 > > > To listen to the show archives go to link > http://acbradio.org/handyman.html > or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > The Pod Cast address for the Cooking In The Dark Show is. > http://www.gcast.com/u/cookingindark/main.xml > > Visit The New Blind Handy Man Files Page To Review Contributions From > Various List Members At The Following Address: > http://www.jaws-users.com/handyman/ > Visit the new archives page at the following address > http://www.mail-archive.com/blindhandyman@yahoogroups.com/ > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > [EMAIL PROTECTED] > Yahoo! Groups Links > > > > > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.405 / Virus Database: 268.10.9/417 - Release Date: 11/08/2006 > > To listen to the show archives go to link http://acbradio.org/handyman.html or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday The Pod Cast address for the Cooking In The Dark Show is. http://www.gcast.com/u/cookingindark/main.xml Visit The New Blind Handy Man Files Page To Review Contributions From Various List Members At The Following Address: http://www.jaws-users.com/handyman/ Visit the new archives page at the following address http://www.mail-archive.com/blindhandyman@yahoogroups.com/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/blindhandyman/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
