Quote Originally Posted by irving2008 View Post
Hmmm, if you say so Jazz... The quick google suggested otherwise but it may be I wasn't looking at the same thing. On reflection, given the flexible nature of the beast you may well be right about needing to drop the acceleration since the gantry isn't the heaviest thing and even a small increase in spindle mass might be a large percentage of the overall moving mass.. I was thinking it was a small increase, say < 15% or so
Hi Irving sorry if I came over wrong.? Wasn't having a go just that I've had my hands on one of these things and the spindles are biggest pile of shite and proper mickey mouse. I've also had plenty of the small WC spindles and they are probably twice the weight of these spindles.!

Some thing else I think will be a factor that I didn't mention at time will be the strain the extra weight will put on the Z axis bearings which again are cheap units.!