Thank you for posting these reference materials! Would it be agreeable to you if I included this on the LegacyCharts spreadsheet I have been accumulating? It makes for a handy local reference all things Legacy. DanK
On Thursday, May 16, 2024 at 12:06:52 AM UTC-4 Curt George wrote: > Hello Again everyone! > > I have posted these video's ,Mike posted some years back. > on his methods of indexing, These methods have always worked for me in > the past. and I hope some of you will learn and try his methods as well. > > https://www.youtube.com/watch?v=oHgzEKnON-o&t=17s Crank handle indexing. > > > https://www.youtube.com/watch?v=SjcFpO51upw&t=4s Carriage travel indexing. > > As well as some notes for Tim K. on crank handle indexing. > Crank Handle Indexing for the Rotary TableAlternative Indexing Method for > Legacy Ornamental Mills > ------------------------------ > > Mike Pung posted an idea of using the stock gears as a method of indexing > the rotary table instead of the stock handle. Using the a drive shaft to > control the rotary tables motion the following indexes can be obtained with > the stock gear set. I have come up with what I believe to be a close to > definitive answer on the number of indexes available. They are as follows. > > 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 48, > 60, 64, 72, 80, 96, 120, 128, 144, 160, 192, and 240. > ------------------------------ > > The stock gear set will turn the spindle a specific number of times per > x-axis lead screw turn. For more information, see the Crank Handle > Indexing article. > <http://artscopes.com/legacyornamentalmill/tools/pungs_index_method/pungs_index_method.html> > Standard gear set - Leadscrew handle turns for one spindle Revolution > GearNo. of Cranks > A 8 > B 12 > C 16 > D 18 > E 20 > F 24 > G 30 > > The rotary table makes one revolution for every 8 cranks or 45º increments > per revolution. By multiplying the number of cranks required to make one 1 > spindle rotation by 8 you can calculate the number of turns the x axis lead > screw crank handle will need to turn to move the rotary table one > revolution. Each crank of the lead screw handle can be used as an equal > division. > Index Chart for Legacy's Standard Gear set > GearNo. of Cranks / DivisionsDegree Increments > A 64 5.625 > B 96 3.75 > C 128 2.812 > D 144 2.5 > E 160 2.25 > F 192 1.875 > G 240 1.5 > > These can be broken down by skipping crank revolutions. For example, using > the A gear and making a cut once every 4 cranks you can index the rotary > table every 16 locations. However as you can see by this example, it would > be much faster to index the table using a different method. Using the > numbers above, here are the possible indexes available for each gear. > Rotary Table Indexes Standard Gear Set > Gear > Divisions > A > 2 , 4 , 8 , 16 , 32 , 64 > B > 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 32 , 48 , 96 > C > 2 , 4 , 8 , 16 , 32 , 64 , 128 > D > 2 , 3 , 4 , 6 , 8 , 9 , 12 , 16 , 18 , 24 , 36 , 48 , 72 , 144 > E > 2 , 4 , 5 , 8 , 10 , 16 , 20 , 32 , 40 , 80 , 160 > F > 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 32 , 48 , 64 , 96 , 192 > G > 2 , 3 , 4 , 5 , 6 , 8 , 10 , 12 , 15 , 16 , 20 , 24 , 30 , 40 , 48 , 60 , > 80 , 120 , 240 > ------------------------------ > > Questions or comments or corrections, please feel free to contact me - Tim > > Updated: 6/27/2010 > > > C.A.G. > -- 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/d0a99ca8-b401-4825-a02c-294aa65d737fn%40googlegroups.com.
