CPDDET Posted October 19, 2020 Share #1 Posted October 19, 2020 Is anyone using their Byrne's saw for cutting thin brass stock? If so, which blade are you using and what is the maximum thickness you're cutting? Dave Quote Current build: NRG Half Hull Previous build: MS Bluenose Link to comment Share on other sites More sharing options...
Jaager Posted October 19, 2020 Share #2 Posted October 19, 2020 In theory, I would use a slitting blade. Thin sheets of non ferrous metal will probably react poorly to the stress of cutting if it is pushed thru the blade by itself. I would use thin sheets of model aircraft plywood and double sided tape to make a sandwich. The metal fixed between two sheets of ply. Cut using one of the more coarse toothed slitting blades, but still a lot of teeth. I have no actual experimental data to confirm that this would work. But, I expect that curling and other adverse problems would be avoided. A top hold down stick and butt end pusher should resist kickback. bruce d, Canute, captain_hook and 1 other 4 Quote NRG member 50 years Current: NMS HMS Ajax 1767 - 74-gun 3rd rate - 1:192 POF exploration - works but too intense -no margin for error HMS Centurion 1732 - 60-gun 4th rate - POF Navall Timber framing HMS Beagle 1831 refiit 10-gun brig with a small mizzen - POF Navall (ish) Timber framing The U.S. Ex. Ex. 1838-1842 Flying Fish 1838 pilot schooner - POF framed - ready for stern timbers Porpose II 1836 brigantine/brig - POF framed - ready for hawse and stern timbers Vincennes 1825 Sloop-of-War - POF timbers assembled, need shaping Peacock 1828 Sloop-of -War - POF timbers ready for assembly Sea Gull 1838 pilot schooner - POF timbers ready for assembly Relief 1835 packet hull USN ship - POF timbers ready for assembly Other Portsmouth 1843 Sloop-of-War - POF timbers ready for assembly Le Commerce de Marseilles 1788 118 cannons - POF framed La Renommee 1744 Frigate - POF framed - ready for hawse and stern timbers Link to comment Share on other sites More sharing options...
bruce d Posted October 19, 2020 Share #3 Posted October 19, 2020 2 hours ago, Jaager said: use thin sheets of model aircraft plywood and double sided tape to make a sandwich. The metal fixed between two sheets of ply. Cut using one of the more coarse toothed slitting blades, but still a lot of teeth. Exactly right for thin brass. It doesn't have to be top quality plywood, just solid with no 'voids'. Also works with acrylic sheet. I have cut .004" (4 thou) brass this way with good results on a saw nowhere as good as a Byrnes. It is surprising but the same setup will allow you to make good cuts with a router provided the ply-brass-wood sandwich is rock solid and you have good router bit. You may harm the teeth of the cutter but just use another depth setting next time to bring a different section of the cutting edge into contact with the workpiece. The tricky part, whichever tool has been used, is removing the plywood without distorting the brass. Tip: soak the whole kit and kaboodle in methylated spirits to soften the double sided tape bond. Once finished, throw the plywood away. Canute and mtaylor 2 Quote 🌻 STAY SAFE A model shipwright and an amateur historian are heads & tails of the same coin current builds: HMS Berwick 1775, 1/192 scratchbuild; a Slade 74 in the Navy Board style Mediator sloop, 1/48 - an 18th century transport scratchbuild French longboat - CAF - 1/48, on hold Link to comment Share on other sites More sharing options...
Roger Pellett Posted October 19, 2020 Share #4 Posted October 19, 2020 I have also slit brass tubing as small as 1/16in dia. to form a cap rail atop a metal bulwark on my Byrnes saw. This requires a simple jig- a hole on a block of wood clamped to the tabl.e top. Roger Canute, tkay11, bruce d and 1 other 4 Quote Link to comment Share on other sites More sharing options...
RichardG Posted October 19, 2020 Share #5 Posted October 19, 2020 Apparently the saw will cut "larger" stock as well. Greg Herbert used the saw to help make this tiller. https://modelshipworld.com/topic/370-speedwell-by-dvm27-greg-herbert-ketch-rigged-sloop-1752/page/7/?tab=comments#comment-654207 bruce d, Canute and mtaylor 3 Quote Richard Current Build: Early 19th Century US Revenue Cutter (Artesania Latina "Dallas" - messed about) Completed Build: Yakatabune - Japanese - Woody Joe mini Member: Nautical Research Guild & Midwest Model Shipwrights Link to comment Share on other sites More sharing options...
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