Hi Rich
Thank you for your reply
Sorry i didn't mean it to sound that the theory part wasn't important, its just that I needed to get the system going for peace of mind
rather than a expensive pile of wire and bits for a paper weight.
I know that I will have to read lots more and do loads more research and that is only to be expected, I do want to understand how it all
comes together and what makes it tick
Although my goal is to build a machine to help my business, this part is like a hobby, I must start to spend less time enjoying playing and learning
and spend more time on the mundane work bit (customers!!!)
I have done the calcs for the steps through the gearing and final drive but will go back to that now I know the system does operate
The target is to achieve approx 400" / min travel for the X & y axis according to my numbers below
From 500 rpm on the motor, bearing in mind I will have a 2:1 reduction in rpm onto
the drive gear so that will give me 250 rpm at the out put
The Drive gears have a PCD of 26mm which calculates to 81.68mm per revolution (or two revs of the stepper)
(400 inches a minute = 10,160mm/min)
10,160 mm/min = 124.387 rpm at the output gear = 250 rpm at the stepper
On top of that rpm will be rapid feed for positioning hence it would be nice to get nearer the 500 rpm (without losing steps)
I hope this makes some sort of sense??
Hood
I have just read your reply, spot on I will have to look at the config, does sound hopeful though (Clutching at Straws)
I will let you know what I find out
Peter