I got my motors I paid $39.99 for
and have already tested them and determined their pinouts. That black
thing on the breadboard is an H bridge motor controller and I don't
currently know how to limit current on that kind of circuit so that
puppy gets wicked hot powering the nema 17.
I also got my Arduino and my RAMPS shield.
I did a couple experiments and got the Arduino to drive the motor. I
didn't make a movie because it would be redundant as I've already done
the same thing a couple times with gate logic and now I've to done it
programmatically. I have to say I found the Arduino IDE pleasant and
easy to use and set up. I read about some people complaining about the
non brand name Arduinos giving a problem because the serial chip is a
cheap CH340G. Even the ebay seller sent me a message reminding me to
download the drivers for it which I did. Windows 7 found and installed
the drivers by itself. The IDE was able to communicate with it and
install the firmware(Marlin). The printer interface software also was
able to talk to the firmware just fine. It remains to be see if I will
have a problem in the future and if I do then I'll pay the extra 3 bucks
for a real Arduino Atmega 2560 and demote this one some future project.
I added some more wood to my frame today so it's starting to look like it will be able do something soon:
I found this scanner in my attic that is so old it has a parallel plug. I will be dismantling it gleefully:
So I have gotten the electronics and the motors. I have also ordered the heated bed for which I paid $7.49.
I have decided to go with a bowden style feeder(which is used in delta
printers) so I ordered the printed parts and hardware for it for $7.50.
I'm watching a j-head and an extruder gear.
This is what my work space looks like right now and I thus far spent $83.61: