So, my RAMPS and drivers just arrived. The arduino is still in the mail. I have three questions about setting it up.
First: The RAMPS came with a through-hole component -- a diode, I think -- taped to the bottom, like a spare. What is this for?
Seconondly: I have DRV8825 drivers, which could fry my steppers if I let them. How do I tune them without doing that?
And thirdly: I feel stupid for asking this, but -- which way do the drivers go into the sockets?
First: The RAMPS came with a through-hole component -- a diode, I think -- taped to the bottom, like a spare. What is this for?
Seconondly: I have DRV8825 drivers, which could fry my steppers if I let them. How do I tune them without doing that?
And thirdly: I feel stupid for asking this, but -- which way do the drivers go into the sockets?