Also relatively common is the Atlas wood lathe, this being made in several versions, some of which are shown here. Because they sold in such huge numbers, the most frequently encountered models today are the "10F", a power-cross feed version of the "10-D", and the useful little backgeared and screwcutting 6-inch (3-inch centre height). Screwcutting Gearbox and Pick-O-Matic threading systemĪtlas Shaper Atlas Milling Machine Atlas Drill PressesĬraftsman-badged versions of Atlas machine toolsīuilt in 6, 9, 10 and 12-inch versions, Atlas lathes were made by the Atlas Press Company, an organisation based originally in Kalamazoo, Michigan, USA. Catalog extra hereĪcorn, Halifax & Sphere - copies from the UKĪtlas 9-inch and 10-inch Accessories with Catalog Pages & British-market Versions: Sphere, Halifax and AcorntoolsĪ complete data pack is available for the Atlas 10-inch & other LathesĪtlas 10-inch lathe - details below.
ATLAS LATHE GEARS MANUALS
Machine Tool Manuals Catalogues Belts Books Accessories
ATLAS LATHE GEARS ARCHIVE
Important to note that the gears not in direct mesh should not hit any other gears (gear clashing).Email: t Machine Tool Archive Machine-tools for Sal e & Wanted 0065inĪ bit complicated but if you keep things straight on a chunk of paper then one can calculate carriage advance from the spindle revs with any gear combination. 052 revolutions and the carriage will advance. 125 inches.Ħ) putting this all together, from point 4 above, for every turn of the spindle the lead screw turns. This means that for every turn of the lead screw the carriage advances. 052 revolutions.ĥ) if we ASSUME that the lead screw is 8 threads per inch then the pitch is 1/8 or.
This means that for every revolution of the spindle, the lead screw turns. 375 revolutions.)Ĥ) At this point the gear train from the spindle to the lead screw has a ratio of. (1 turn of the 24 tooth gear turns the lead screw gear. )ģ) the 24 tooth gear attached to the 64 tooth gear is meshed with the 64 tooth gear on the lead screw and the ratio is 24/64 or. Consequently 1 turn of the spindle will then turn the 64 tooth gear. 375 (1 turn of the 54 tooth gear turns the 64 tooth gear. 37 revolutions.)Ģ) the 24 tooth gear attached to the 54 tooth gear in 1) above is meshed with the 64 tooth gear and the ratio is 24/64 or. ( 1 turn of the spindle turns the 54 tooth gear.
Let us ASSUME that the gear on the spindle has 20 teeth and from what you have given:ġ) the 20 tooth meshes with the 54 tooth and the ratio is 20/54 or. There may be 2, a 20 tooth or a 32 tooth, or whatever you have.Ģ) Identify which gear is engages with the spindle gearģ) Identify which gear is meshing with the gear that is meshing with the spindle gear.Ĥ) Identify which gear is on the lead screw. Sorry there is not enough information here to help.ġ) Identify the number of teeth on the spindle gear. Having that capability makes life much easier, and projects go much faster. If you foresee cutting threads in your future, and you don't have plans on upgrading to a different machine, it would pay to try to procure all of the gears required to do so.Īssuming you make a decision to upgrade, consider buying a lathe with a quick change gear box, so you can simply dial the feed rates and thread pitches you wish to machine.
ATLAS LATHE GEARS FULL
Unless you have a full complement of gears, you most likely will be unable to create thread pitches you may wish to create. For that matter, if you're happy with the finish, now, no need to do anything. Try combinations with the gears you have at your disposal to see if you can live with the feed that results from changing. If, when taking a cut, you are not happy with the finish, you'd want to change the ratio.
Unless I don't understand your question, it's not a matter of right or wrong, unless you're trying to create a given lead, or feed rate.
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