hootie wrote:I can't move it to the automation forum. Maybe a moderator can. Why am I even asking the question? I don't think I'm alone in trying to figure out the easiest way. And... you don't always have to buy the driver with a stepper. You can run them straight off of some of the cool motor controllers out there. And asking the stepper motor companies for help? Yeah, they'll give you the specs... but that's it. Possibly the drivers they suggest.
I think there's allot of people who would like to see a simple example of how to drive a stepper motor from a Raspberry Pi. Apparently you're not one of them. So why bother replying at all? I always wonder why people take the time to post on something they just want to bash. I guess to much time on their hands.
Thanks, for your constructive critisism, I will try to use it to help my customer service and manners
I am not trying to bash you, I am trying to help you by showing you a more efficient way of finding the answers you seem to want.
I appologise for my terse reply, but, unfortunately everyone in this world has their own priorities, yes I have some time on my hands this afternoon, and I try to give advice and help the rpi forum, but you cannot expect others to spend a lot of time answering your individual question when your question has been answered before.
If you have worked in industry you should know how to do research and read technical specifications, I suspect you are either being very lazy otherwise you are just trolling.
You need to realise nothing is easy, you will need to spend some time reading and understanding how the systems involved work together and when you have a problem ask a specific well defined question that can be answered.
I myself do like to play the lazy chatty ill defined forum discussion game, it is sometimes fun, but I like to have a goal I can work towards.
Obviously you know your own goal, but I do not.
Now I suppose I can answer at the very least your first sentence, yes there are probably more than 1 people but less than 10 people on this forum that have allot of experience controlling stepper motors. Whether those people really know a lot about the physical characteristics of how stepper motors work I have no idea, computer control is a complex subject.
I doubt you will find anyone that will give you the amount of help and hand holding you appear to need for such a complex project as you describe and also the fact that you do not seem to have a well defined specification for your project makes it hard for anyone to quote to give paid help.
I don't like to admit this but it sometimes seems as though I know a bit about controlling stepper motors with the raspberry, but at the same time I realise that there is a huge amount of stuff that I know about but I do not fully understand or consider, probably because generally I do not need to consider certain aspects of a system.
I know that I only play with stepper motors, I mess with them as a hobby, I find it interesting to see how they work and how they fail and how I can control them. Unfortunately I would never feel confident to give advice on a commercial application as I am not qualified and I do not have the time.
I feel you are not giving enough details for anyone to advise you, I think if you are designing a machine you need to know things like how fast it needs to move and what sort of torque or force it needs to provide and finally the precision or accuracy required, from there you can specify motors and drivers and then workout what sort of realtime scheduling is required by the computer controlling the system.
All those things should be known before you can ask a question that can be answered.
Otherwise you should get on with experimenting to see what you can do with what you have or what you want to use, which is really a matter of play rather than engineering.
Sorry for being an ass, but if you just want to play, get on with it, search google and experiment and you will learn a lot and maybe achieve something great.
If you actually really want some paid commercial engineering help, write a decent specification, and give some sort of initial price to negotiate around. Maybe try freelancer.com