[olf20]

Hi all, hope everyone is doing well!
I have been looking for sometime now for a standalone stepper driver.
I have a need for some Ag equipment to be able to drive a stepper, and reverse it.
I know some can be adapted but I would just like to build one from a kit or purchase one already built.
Thanks for any help!!
olf20

[pminmo]

I assume you mean no PC, but you didn't say beyond that if you needed position control, forward reverse.....

[olf20]

Thanks for the reply pminmo! No Computer. The enviroment is wet and very
undesirable. Yes I need to vary the speed via pot, forward / reverse, and stop start.
Thanks again for any help!
olf20

[pminmo]

Look at this thread on my bulletin board: http://pminmo.com/phpBB2/viewtopic.p...&highlight=555

The 555 circuit is essentially what you need.

[mlaws1172]

What size steppers? I have been working on a 297/298 board with power supply, step and dir. signals, but it is 24VDC @ 3 amp. Hope to test it this weekend.
Let me know if this fits your needs.

Mike

[olf20]

I have not decided yet! Been trying to find something that would work stand alone, then proceed. Basically I need to run a arm back and forth with the ability to vary the speed and also the degrees of rotation.
Thanks for the reply!! Let me know how your testing goes!
olf20

[olf20]

Hi Mike
How is the project going?? Do you have anything going on a standalone driver running?
Thanks for any help!!
olf20 / Bob

[mlaws1172]

Bob
I have one done but got sick and havent had a chance to finish testing. If it works ok I will send it to you if you want it. I will finish testing tommorrow

Mike