Hello Tamas, thanks for responding. I must have read over a hundred posts and watched countless tutorials - thing is, tutorials tell you how it should work, but not what the possible errors are along the way. I have tried to find other, more name brand deltas to see which come closest to the one that I have, which I eventually found out is marketed as Kossel K800. I have replaced many of the parts that came with it, with spare parts I had, like the stepper motors, and the mega/ramps/stepper drivers. There is limited information about the K800 specifically, that is, if I could just read and understand Chinese I might have made more progress by now.
I have taken measurements over and over again, updated Marlin firmware over and over again, changing certain parameters by tiny amounts to see if it makes a difference.
Every step forward is two steps back - where a minute ago, the endstops worked fine, now they just don’t, but the next power cycle they work, but the motors home at the slowest possible rate, suddenly they are reversed, and suddenly they aren’t. I have tested the stepper drivers with a multimeter, each one returns between 5.5 and 6, which to my knowledge is within a reasonable range. My power supply is spot on, the LCD screen sometimes displays solid blocks, sometimes is correct, or usually the backlight comes on but displays no data, and even though various wired parts respond, they do so unpredictably.
Not knowing where the disconnect in between firmware, hardware, and functionality is has been my biggest problem. I have tested every stepper driver with every motor and when singled out they work as I would expect them to, when all components are wired together, that’s when jogging motors and measuring the effector movement distance suddenly switch direction, or the thermister stops reading temperature in mid dry run, it’s just a big mess. Any ideas?
