tbskinner Wrote:
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> Do you think I could use an Arduino diecimila with
> some shift registers (74HC165N) to increase the
> outputs. Maybe a diy board for the extruder? I
> have a bunch of spare parts laying around like
> voltage regulators, mosfets, transistors, and the
> capability to etch boards. I'm just curious
> because that's what I have on hand. What would be
> a good firmware for this type of application.
> Teacup?
>
> If not what exactly am I going to need to order?
>
> Also sorry if these are kinda noob questions I'v
> never done anything with steppers or anything with
> add on boards.
You could try the shift register idea to expand IO, but I would be worried about timing/delays/speed depending on what you are mapping through the expanded IO. Also to do that, you'll have to do some serious firmware modification.
I'm not sure how comfortable you are with modding the Arduino Code.
But considering you are asking the questions you've been asking, I'd recommend just buying the components you need.
1x Arduino Mega 2560 (Loaded with Marlin which allows good configuration options for your Stepper Driver)
1x RAMPS 1.4 Board
1x Pololu Stepper
But again, although you could get this stepper driver to work, it looks like it only supports 1/2 stepping. It's going to be one shaky mess.
-------------------------------------------------------
> Do you think I could use an Arduino diecimila with
> some shift registers (74HC165N) to increase the
> outputs. Maybe a diy board for the extruder? I
> have a bunch of spare parts laying around like
> voltage regulators, mosfets, transistors, and the
> capability to etch boards. I'm just curious
> because that's what I have on hand. What would be
> a good firmware for this type of application.
> Teacup?
>
> If not what exactly am I going to need to order?
>
> Also sorry if these are kinda noob questions I'v
> never done anything with steppers or anything with
> add on boards.
You could try the shift register idea to expand IO, but I would be worried about timing/delays/speed depending on what you are mapping through the expanded IO. Also to do that, you'll have to do some serious firmware modification.
I'm not sure how comfortable you are with modding the Arduino Code.
But considering you are asking the questions you've been asking, I'd recommend just buying the components you need.
1x Arduino Mega 2560 (Loaded with Marlin which allows good configuration options for your Stepper Driver)
1x RAMPS 1.4 Board
1x Pololu Stepper
But again, although you could get this stepper driver to work, it looks like it only supports 1/2 stepping. It's going to be one shaky mess.