On Tue, 13 May 2014 15:14:53 -0400, you wrote: >As I need every mm of that screw I can salvage, I am thinking of boring a >pocket in the inside end of the bearing boss end that fits the OD of the >screw, close enough I might have to drive it in. Then turning a "pipe >taper" thread on the OD for a suitable nut, then slitting the end into 4 >petals, so that when the nut is screwed on, it closes up the petals and >gets a death grip on the screw. > >Long term workable? I should think so, but has anyone else done it that >way? There simply is not room inside an 8mm shaft for one of those dual >tpi screws as likely will not have adequate wall thickness for the 6.35mm >extension the motor drive coupling will be clamped to. > >I did do that on the lathes x, but used a 9mm thru shaft, and the motor is >on the other end of the screw, so all this rig had to do was take the end >thrust, which its done rather nicely so far.
Can't picture what you are trying to achieve here but all of it sounds awfully over complex? As Andy said - glue A simple sleeve "glued" on will work for a ball screw extension. It will hold FAR greater than what a wimpy stepper is ever going to achieve to break it. Just use correct glue. BTW - super glue is wrong answer.. Steve Blackmore -- ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
