On 26.03.17 18:53, Gene Heskett wrote: > But is 7 the correct factor? It should be fairly easy to jack it back > out.
Gene, I've never made one of them, but looking here: http://www.google.com.au/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&ved=0ahUKEwiE6q-q5PXSAhWGKWMKHeZIAf0QFgg-MAc&url=http%3A%2F%2Funiversalbearings.com.au%2Fdownload-subproducts%2Ftaperlock-bushes&usg=AFQjCNGOFIvAUjPQ1JccxaHkdEjC0hT5oA the first bush in the table seems to be: atan((35.2 - 33.7)/11.1) = 7.7° included, near as dammit. They have a threaded half-hole on the perimeter, for a jacking screw, so I figure that 8-ish degrees will not fall out as soon as you loosen the screws. So long as both parts are made with the same topslide angle setting, I wouldn't fuss about 7° or 9°, or something round about close to that. If the shaft isn't too shiny, and your bush bore isn't too polished, then there's probably no need to go for the smallest angle (for tightest grip), and another degree or two (included) will be a bit easier to dismantle. I can see why you're making them. There's not much in them, and with prices being mostly loony if the goods don't come from China, it's well worthwhile. Erik ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
