I`am haveing issues with ballscrew and coupler the coupler not staying tight on the ballscrew ..any ideas on to fixing this......
Locktite ? You get different styles of couplers too. Some just has setscrews, others have a clamping collar. The clamp style holds much better but also requires the shaft to be machined within its clamping tolerance. If you can use those, they are a lot less frustrating than the cheaper kind with just the setscrew
Does it only clamp? Or clamp and setscrews? If the locktite doesnt work, try a few different versions
What I did on mine was to remove one set screw while the other was tight. I then drilled into the screw with the corresponding bit for - in my case - an M3 screw and tapped the screw shaft. I then put locktite on a longer, non set screw M3 screw and I have never had it loosen. I did this to all but the last one. That one has a broken drill bit permanently holding it in place.
