Hi,I think Dan of Sailfish has stated that a printing speed of 120mm/s and a travel speed of 200mm/s is reachable with Sailfish / the replicators when nicely tuned and maintained (don't know the 5th gen).
But: that 120mm/s is ok for infill, but not for the perimeter: normally that is set at 50% of the speed (in skeinforge / makerware). So the max printing speed for the perimeter is normally 60mm/s
Normally I use for 'fast' printing 40mm/s for the perimeter, 80mm/s for solid infill and support and 100mm/s for sparse infill.
Mind you: that speeds are seldom reached because of the de- and acceleration settings of Sailfish (normally set to 'fine' acceleration settings).
I set the travel speed to 150mm/s, the Z to 10mm/s, the first layer to 40mm/s, and the limit increase to 100.(when that one set to 20, it increases each layer the speed with 20% until it reaches the max speeds on the 5th layer, see the tooltip as well.).
The XY acceleration value you refer to in the printer settings under speed, doesn't actually has influence on the generate Gcode / print: it's just to get a more accurate estimation of the print time. You can refer to the tooltip when hoovering over that field.
Bart