I accidentally destroyed my Z stepper driver last week. Today the new part has arrived; an A4988 Chinese driver.
My previous drivers all have the 0.02 Ohms resistors. But..... the new one don't. It has two 0.01 Ohms resistors next to the processor. I've gone through the wiki and forums, found a lot of Vref formulas comparisons and other stuff but not what I am looking for: What should I do with the Vref? Should I change anything within Repetier setup or on the Ramps 1.4?
Also, can I use these different drivers together on the board?
And because I now have two new drivers (0.01Ohm) and two other drivers (0.02Ohm), is one better suitable for my Z-axis? In other words, is one driver more efficient in driving a threaded rod or belt?
Thanks in advance!
My previous drivers all have the 0.02 Ohms resistors. But..... the new one don't. It has two 0.01 Ohms resistors next to the processor. I've gone through the wiki and forums, found a lot of Vref formulas comparisons and other stuff but not what I am looking for: What should I do with the Vref? Should I change anything within Repetier setup or on the Ramps 1.4?
Also, can I use these different drivers together on the board?
And because I now have two new drivers (0.01Ohm) and two other drivers (0.02Ohm), is one better suitable for my Z-axis? In other words, is one driver more efficient in driving a threaded rod or belt?
Thanks in advance!