jml1083 Posted December 20, 2013 Share #1 Posted December 20, 2013 I recently discovered something called a hermaphrodite caliper. We are all familiar with normal calipers, what makes the hermaphrodite caliper different is one leg has a small inward facing "foot". This foot makes scribing or drawing a line that is a set distance from the edge of a piece of wood very simple and accurate. The foot follows the edge while the other leg, which can hold either a sharp point or a pencil lead, scribes or draws a line. I found that this is so accurate that I can quickly go over the same line multiple times to make a scribe mark deeper and the scribe always is in the exact same place. The following graphic shows some of the possible uses. Starrett make two versions of this tool. The 563-6 is a 6" tool where the opposite leg is straight for its entire length. The 243-6 is also a 6" tool but the opposite leg has a bend in it about half way up. The Starrett models are a bit pricey (about $50 USD each) so you may want to shop around. The ones I own have what Starrett calls a stiff joint which means there is a nut that you can tighten if needed to increase the amount of force needed to adjust the gap and these are the ones shown above. They also have a locking joint version of both but I find the stiff joint version is just fine and the lock joint version costs twice as much. WackoWolf and trippwj 2 Quote Jim L What we ever hope to do with ease, we must learn first to do with diligence. - Samuel Johnson On the Building Ways: Launched: Contracts Signed: Member: The Nautical Research Guild The US Naval Institute Link to comment Share on other sites More sharing options...
Q A's Revenge Posted December 20, 2013 Share #2 Posted December 20, 2013 I have a pair with a notch like this somewhere, they are handy. Quote Link to comment Share on other sites More sharing options...
kurtvd19 Posted December 21, 2013 Share #3 Posted December 21, 2013 I have wanted something like these calipers but didn't know this tool actually existed. After seeing the original post I jumped onto eBay this morning and got a great set for $25. Place sent a notice that they have shipped already! Kurt Quote Kurt Van Dahm Director NAUTICAL RESEARCH GUILD www.thenrg.org SAY NO TO PIRACY. SUPPORT ORIGINAL IDEAS AND MANUFACTURERS CLUBS Nautical Research & Model Ship Society of Chicago Midwest Model Shipwrights North Shore Deadeyes The Society of Model Shipwrights Butch O'Hare - IPMS Link to comment Share on other sites More sharing options...
mgdawson Posted December 21, 2013 Share #4 Posted December 21, 2013 Hi All, If you're having trouble tracking these down, hermaphrodite calipers are also known as jenny calipers or odd leg calipers, other than eBay you'll find them at engineering and model engineering supplies. Mark WackoWolf 1 Quote Mark D Link to comment Share on other sites More sharing options...
normanh Posted December 21, 2013 Share #5 Posted December 21, 2013 Never know then called anything else other than "odd leg calipers" here in the Uk and that goes back almost 50 years to when I was in school . Norman Quote Norman Current build Trumpeter Arizona 1:200 with White Ensign PE and a Nautilus Wooden Deck. Built Caldercraft Convulsion, HM Brig Badger and HMS Snake. Awaiting - Zvelda HMS Dreadnought planning to get the Pontos Deck and PE Upgrades, Panart 1:23 Gun deck model and couple of the cannon kits Manatu - French siege mortar, and American coastal cannon. Link to comment Share on other sites More sharing options...
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