Re: Re: Re: Stepper program w/Encoders?

Hi Hans,

I do not see a good reason to confuse things with backlash TIME. It is really a DISTANCE that must be added to travel when you
change direction on an axis. If you call it time, it must continuously be changed because feed rates vary. It is easy to say
that there is 15 mil backlash on Y and 23 mils on X. I think everyone will understand that without any confusion.

Oh by the way, take cover and put on a flame proof suit. I can just hear the Linux guys gasping for air.

I am hoping for an NT version also so I do not have to go through the headaches of the learning cycle and to maintain an other
system. The basic problem is that there must be a real time kernel and the one that I have seen for NT is very expensive.
Rumor has it that there is a "free" one available but I have not seen any details. So it looks like I have to bite the bullet
and get a Linux system up and running.

> From: hansw <hansw@...>
> I'm new to CNC also, by dead time I mean the time (= number of turns
> needed) to move the tables when reversing direction.. As an example.
> If it required (large number for example) 200 turns to move the table in
> the opposite direction, it should be possible for the uP to figure this
> out, because you mentioned (I think) the use of a DRO as input...
> ---------> Snip