From: Alan Lambert Lone Star Flyer Club Arlington, Texas Charles, the best way to do that ( find large radius) is with piece of string and nail. Measure half of the raidius . tie one end to the nail and the other end to a pencil. Keep the string taut while you mark the radius. Another use for string Bob. Thanks, Alan
From: Charles Weston <[email protected]> To: [email protected] Sent: Sunday, August 28, 2011 1:47 PM Subject: Re: {S-Scale List} Re: "Pine Strip" turns Dave makes a good point that bent sticks assume a curve that is not circular. Using a trammel of some sort is a good idea, IF you have some place to locate the center. Using a tape measure is not a very good idea -- try to mark a 54 or 60 inch radius curve with a tape. I'd suggest using a trammel to lay the needed radiuses out on a piece of poster board and then cutting them out to use as templates. Or, if you have a router, mount it on a trammel and cut some templates out of 1/4 hardboard (Masonite). Charles Weston --- On Sat, 8/27/11, ctxmf74 <[email protected]> wrote: From: ctxmf74 <[email protected]> Subject: {S-Scale List} Re: "Pine Strip" turns To: [email protected] Date: Saturday, August 27, 2011, 6:41 PM --- In [email protected], "Bill Lane" <bill@...> wrote: > I started to tack the strip > down. NOT the way to do it. The strip needs to "float. Just put 2 nails that > snugly fit the width of the strip at your reference points and walk the > strip around. Give it a little tug and equalize the pressure. You will very > quickly have your needed line. In the old days when folks drew a lot of lines with battens they had lead weights with little brass tips that held the batten and let it slide. They just pushed the ducks in line then drew it. There's lots of factors that determine how a line comes out. Suitability of batten for degree of curve, no knots or other hard spots or soft ,etc. I used them a lot when I was building boats, battens are great for spirals or easement curves but a tape measure swung from the radius point is a lot more accurate for fixed radius curves.Regards ,Dave Branum [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> 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/
