I totally understand all the curt accept the bit after Hello Dan lol
Bill From: 'Curt George' via Legacy Ornamental Mills <legacy-ornamental-mills@googlegroups.com> Sent: Sunday, 22 May 2022 8:58 AM To: legacy-ornamental-mills@googlegroups.com Subject: Re: Trammel of Archimedes Hello Dan. a timing belt No. but perhaps a timing chain could work. The easiest way to look at the Geometric chuck is to see a planetary modal. the Sun is in the center. (1st gear) the speed control is like the Legacy directional gear set. (spins either left or right.) The reduction gears are like the Duplex gear on the Legacy to control the speed of rotation. The center hub would be the headstock of the Legacy. It turns the part on the faceplate. Now there is only one other thing you need to think about to make a Geometric chuck. and that is the off-set of the faceplate/center, from the rotation. to make the arcing movement. The gears in the photo a friend of mine made, I did not do it. He used a gear machine to make those, (basically its an indexing head on a milling machine, but his machine was made to only make gears, so its a specialty machine.) I plan to make my gears with a laser engraver, and to make my gears out of plastic. I plan to set my system a little different that what Frank did (he is he one who made the modal I posted the photo's of in my first posting/reply.) I plan to make the directional gears touch the planetary gear. If I make the directional gear have three locks for the lever which controls the rotation, One/right, Two/ left, and Three/ neutral, (for indexing of the part. and keep the speed control gears on top for easy changeover.) I also plan to use a 5/8" shaft for the center/ upper hub, to cut down space and make it so I can use My Shop Smith faceplates with this jig. Like I said I've done a lot of research on this topic. Its just a matter of time. before I get it done. I hope this helps you understand how the jig/ Geometric chuck works? C.A.G. On Saturday, May 21, 2022, 06:12:43 PM EDT, Dan Krager <cdkra...@gmail.com <mailto:cdkra...@gmail.com> > wrote: That geometric chuck is a fantastic widget! I have always drooled over what Holtzapffel ornamental lathes can do. I set up a Supershop lathe to mimic some of the simple patterns, but simple is the key word. The geometric chuck video reminded me of the Spir-o-graph toy. Years ago I gave up trying to think about linking that.... but now I can cut gears. Hmmmm. Your geometric chuck for the LOM is in another class! WOW! First question (suppressing many others) is how do you cut those gears? I have a gear geometry program to create a printed pattern, but cutting it on the scroll saw seems to lack the accuracy that is desirable. They are just spur gears, so an indexing head on a mill ? This would be way overkill for the trammel, but I LOVE overkill. Ivandea. If one used narrow timing belts, would that eliminate a lot of the gears? DanK On Saturday, May 21, 2022 at 5:45:12 PM UTC-4 Curt George wrote: Tim this is what was asked for. I just offered my Geometric chuck. since it dose the same things. (sorta?) ;-) https://en.wikipedia.org/wiki/Trammel_of_Archimedes C.A.G. On Saturday, May 21, 2022, 05:35:08 PM EDT, Tim Ziegler <timjz...@gmail.com <mailto:timjz...@gmail.com> > wrote: Ufffff Dan you lost me on the first big word. lol Kind Regards, Timothy J. Ziegler Ziegler WoodWork & Specialty 14171 160th Ave. Foreston MN 56330 320-294-5798 shop 320-630-2243 cell On Sat, May 21, 2022 at 1:03 PM Dan Krager <cdkr...@gmail.com <mailto:cdkr...@gmail.com> > wrote: I haven't scoured the archives so this, too, may be an old discussion. Has anyone made a trammel of Archimedes for ellipsoid shapes? It has been a dream of mine to be able to do a range of ellipsoid shapes under a router and they are not hard to make. One does not "need" a LOM to do such, but it would be a lot easier on one. And the minimum size would be much much smaller. Having metal machining now available to me opens up new avenues and eventually I will pursue making one for the LOM. In the meantime,.... DanK -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental...@googlegroups.com <mailto:legacy-ornamental...@googlegroups.com> . To view this discussion on the web visit https://groups.google.com/d/msgid/legacy-ornamental-mills/63bf7ee0-4bf6-40e8-949c-79b464f0499dn%40googlegroups.com <https://groups.google.com/d/msgid/legacy-ornamental-mills/63bf7ee0-4bf6-40e8-949c-79b464f0499dn%40googlegroups.com?utm_medium=email&utm_source=footer> . -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental...@googlegroups.com <mailto:legacy-ornamental...@googlegroups.com> . To view this discussion on the web visit https://groups.google.com/d/msgid/legacy-ornamental-mills/CAMBiJLFDgZsNZbc-W9wR9W57my9ZrH9aeRK8QSRmQKK7nKi7iw%40mail.gmail.com <https://groups.google.com/d/msgid/legacy-ornamental-mills/CAMBiJLFDgZsNZbc-W9wR9W57my9ZrH9aeRK8QSRmQKK7nKi7iw%40mail.gmail.com?utm_medium=email&utm_source=footer> . -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com <mailto:legacy-ornamental-mills+unsubscr...@googlegroups.com> . To view this discussion on the web visit https://groups.google.com/d/msgid/legacy-ornamental-mills/37f39729-3479-435f-838d-1f02070dee6an%40googlegroups.com <https://groups.google.com/d/msgid/legacy-ornamental-mills/37f39729-3479-435f-838d-1f02070dee6an%40googlegroups.com?utm_medium=email&utm_source=footer> . -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com <mailto:legacy-ornamental-mills+unsubscr...@googlegroups.com> . To view this discussion on the web visit https://groups.google.com/d/msgid/legacy-ornamental-mills/1228383469.688841.1653173860460%40mail.yahoo.com <https://groups.google.com/d/msgid/legacy-ornamental-mills/1228383469.688841.1653173860460%40mail.yahoo.com?utm_medium=email&utm_source=footer> . -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/legacy-ornamental-mills/001f01d86d86%24f863e090%24e92ba1b0%24%40mmnet.com.au.
