I'm running TMC2100 external drivers for my Z axis. when I test it in the slicer with the jog controls, it will change direction each time I click the jog button (in the same direction) so up 10, back 10, very consistent I might add. I have 2 stepper for the Z. I made an adapter with some pin strips. soldered the connectors together and attached wires with a Dupont connector on the other end. now I can just plug the 2 z motors into the adapter. inverting the PIN in the Config does nothing FYI.
What program are you using to control the board ?
They both are known for being pretty bad at respecting standards.
For testing purposes can you try Pronterface ? It'll also be much better at showing you any error messages the board might send, so watch out for those.
Good news is, I got it tuned so it doesn't chatter, and moves consistently in Pronterface using the calculator from Prusa (3200) the bad news is, it moves more than it should. I tried dialing down the numbers to where they should be and it fights me the whole time. bump it back up and its fine as far as behavior goes.
It's as if the scale for the jog control is off by one setting so that .1 =1, 1 = 10, 10 = 100
I'm going to try it at 1600 and 800 while I wait for a reply. don't feel confident enough to run a print yet.
I've worked out that there appears to be a conflict between the Z end-stop and the Z-probe (BL Touch) I'm looking right at it and don't see it. it surges and then stops like the end stop is pressed but its not and M119 says its not as well. ( RECEIVED: min_x:0 min_y:1 min_z:0 Probe: 0 ) ( RECEIVED: min_x:0 min_y:1 min_z:0 Probe: 0 ) Y is the only endstop that is physically pressed ATM. posted a smaller block with just the stepper pins, end-stops and Z-probe info to make it easier.@<
okay the leadscrew pitch was listed in correctly, when I found the right one (with help on another forum) it came together pretty quickly.
For anyone else out there that may need this Wanhao i3 Z lead screws are a 4 start thread and 8mm per revolution. then just calculate for the stepping that your using.
now to find out why the BL Touch doesn't want to cooperate and I can print again. I will make a separate post for that so things don't get muddied up.