Y axis is making X axis stall...!!

[fasteddy]

Alrighty..!!!

Finally getting somewhere...! Changed my parallel lead, big difference and stalling was reduced immediately, but not gone... Then dropped micro stepping down to 800 for each axis and then re-sited every wire.. Bingo...! No stalling.. Had it whizzing around the limits of each axis in 45 degree moves for about an hour.. Not one stall.. Gradually ramped up the speed and acceleration of each drive and would have got it up to around 4500mm/min except one of my ballscrews is bent, nearly shook the frame apart..! Just got to remove the dodgy ballscrew as I think the machined (motor) end might by eccentric...

Thanks all so much for your help, wish I had done everything step by step now as I am not certain if reducing micro steps or rewiring it was the cure.. From what I have read on many posts, 800 micro steps should be within easy reach of my PC, so I still think I have a weak parallel port.. Will get a PCI one from ebay (with a NetMos chip, thanks 2eUpoz) and will still try Jazz's smooth stepper (mucho thanks Jazz) as that sounds like a cure all for this type of pulsing problem..

Once I've checked the ballscrew I have a 6 hour job to do so am going to see how it goes with the new settings..

Karl, guess you have tried reducing the micro-stepping on your drivers, if not, got to be worth trying and definitely try a new PP lead as Jazz suggested.. If that does not work, then good luck and please continue the post until you have it working properly..!

Steve...