Just getting started with the wiring/software portion of this build, and testing the x-axis motors.
Downloaded repetier host and applied these settings and then connected to ramps. i was able to control the x axis manually but the motors started hissing quite audibly, so i disconnected everything. searching online it seemed like maybe i am applying too much current to the motors, but i bought the kit from vicious1 site, with preloaded firmware, so i guess i assumed the current was already preconfigured. is there a step i am missing or is there something else that could be causing the issue??
Yes you are preconfigured, I set them all but with these new kits you can actually turn them down if you would like. The hiss usually goes away once you are in motion, it is not harming the steppers unless they are getting really hot.
Some do it some don’t for some reason.
You can double check just to be certain. I set them just under 0.7V before shipping. could have gotten bumped or something.
Did you manage to resolve the hissing issue? Just ran the first checks on my mpcnc with the repetier-host… First few stepper moves seem ok… then steppers start hissing and won’t move anymore… Once i disconnect and reconnect with the repeties-host i am able to move steppers once more…
Been almost 4 years and I haven’t touched this CNC as I had two kids and free time just got away from me.
Then a week ago I got it back up and running and did the ‘crown test’ and made my own dxf file and both printed perfect so just trying to re-learn how this all works. Can’t believe it is all still working without issue after all this time.
But yes it does hiss I just ignore it as the Driver voltage is fine.