So I am giving up on the original stepper drivers for my r2. I have decided to try the tmc2100. I converted the stepper drivers to the spreadcycle but I am seeing the y skip my vref is .98v, I have removed the config1 2 and 3 pins and shorted config 1 to ground. Also all the jumpers under the tmc2100 have been removed. What am I doing wrong? Did I miss something, I even tried the stepper at 1.28vref and same issue.
Does this discussion help?
It's on the reprap forums, but the original poster is actually working with the TMC2100 drivers on a FT-5.
Yeah last night I saw this post I believe I need to solder the jumper. Well that sucks
Just so nobody else gets confused using these chips:
Cfg1 -> gnd with a wire bridgeCfg1 solder pads need to be solderedAll jumpers under driver need to be removed
This will put the tmc2100 in spreadcycle mode.
So far it is working well
Added TMC2100 to the title to make it easier to find in search results. Thanks for posting the solution.
I guess I should not have jump the gun so soon as I am trying to print my big benchy and it keeps missing steps. I tested that it would work at 300mm/s with no skipping over s3d and it worked find with no skips but when I print and I am printing at a Much lower speed I get skipping. What am I doing wrong? I am in spreadcycle, I have good amounts of torque but still skipping. Driving me mad.
alright for now I will call this solved. not sure why but having the X-axis also connected to one of these seems to be throwing off the y.... which is strange as these circuits are separate; if anyone has any ideas let me know. otherwise happy printing.
I was running up against a brick wall untill I read your post, thanks for posting that helped me tonnes. I have the same stepper drivers MKS-TMC2100 made for their board. I was getting massive layershifting in stealth chop modeI soldered a wire connecting heatsink side of GND and CFG1 and thought I was ready to go. Not quite the case.
Here is a clear pick from reprap forums showing which pads of the solder jumper to connect.