Hi Deckel fans,
today, my FP2 almost scared me. I am saying almost because I have taken the saddle apart so it didn't take long to figure out what was the cause of what I was seeing.
So, I was roughing out a slot, using a 16 mm roughing end mill at 12 mm depth of cut, so I was pushing kind of hard, when I noticed irregularities in the sound of the cut. Seemed as if the feed was pausing for a while and starting back again. Indeed, checked the DRO and, while the handwheel was rotating at constant rate, DRO seemed to freeze for a while then resume for a while and so on.
So, removed the belows on the left side of X and saw the nut rotating with the screw, as expected. (couldn'd have been the shear pin because then the handwheel wouldn't have been rotating in such a constant rate). Tightened the ring nut and all returned to normal (except for the poor end mill that broke during the initial, non-consistent feed).
This got me wondering again, why on earth would these guys leave the X nut without a key? Y and Z are properly fixed (ok, Y is rotating but the screw is fixed), as one would have imagined. Also, on my ALG100 X nut was keyed, as I think is the case with the FP1, right?
Does anybody have any explanation on this, strange, design decision? Can't be a safety thing, there is the shear pin for that. I would be very interested to hear if there was some kind of rationale there...
BR,
Thanos
today, my FP2 almost scared me. I am saying almost because I have taken the saddle apart so it didn't take long to figure out what was the cause of what I was seeing.
So, I was roughing out a slot, using a 16 mm roughing end mill at 12 mm depth of cut, so I was pushing kind of hard, when I noticed irregularities in the sound of the cut. Seemed as if the feed was pausing for a while and starting back again. Indeed, checked the DRO and, while the handwheel was rotating at constant rate, DRO seemed to freeze for a while then resume for a while and so on.
So, removed the belows on the left side of X and saw the nut rotating with the screw, as expected. (couldn'd have been the shear pin because then the handwheel wouldn't have been rotating in such a constant rate). Tightened the ring nut and all returned to normal (except for the poor end mill that broke during the initial, non-consistent feed).
This got me wondering again, why on earth would these guys leave the X nut without a key? Y and Z are properly fixed (ok, Y is rotating but the screw is fixed), as one would have imagined. Also, on my ALG100 X nut was keyed, as I think is the case with the FP1, right?
Does anybody have any explanation on this, strange, design decision? Can't be a safety thing, there is the shear pin for that. I would be very interested to hear if there was some kind of rationale there...
BR,
Thanos