I'm not even close to being able to do this yet but I've been perusing youtube videos and I have a question. https://www.grizzly.com/products/Grizzly-9-x-39-2-HP-Horizontal-Vertical-Mill-with-Power-Feed/G0757 This particular Grizzly mill like the older G3617 has a horizontal mill feature and the ability to rotate the X axis table. There are a number of videos out there that show that when the rotary indexer is coupled with gearing to the X axis drive and the table is pivoted to say 20 degrees that the horizontal mill with a gear cutter can turn out helical gears. Doesn't look like any sort of spindle coupling is needed. Now change to a LinuxCNC controlled "A" Axis Rotary Indexer and a pivoted X axis table the indexer could be slaved to the X axis in software to accomplish the same thing. Is that correct? Or does the X axis even need to be pivoted? Can X and Y motion be co-ordinated to do the same thing or does the table physically have to present the gear blank to the cutter with an angle as in the pivoting table? If simultaneous motion does duplicate the angled table, then if the gear cutter is in the spindle will co-ordinated X,Z and A result in the same thing as the gear driven helical gear cutting? And how would you even write G-Code to do this? Just curious at the moment. Thanks John "ELS! Nothing else works as well for your Lathe" Automation Artisans Inc. www dot autoartisans dot com
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