- December 5, 2016 at 3:37 am #22084
Hello I bought the ramps here but the extruder not. I have everything working correctly but now the extruder is the problem. There is not coming any filament out. I have opened the extruder and tried several things with and without filament and saw that the motor is stuttering/ jammed/ clogging. Even if i pull it completely open so that nothing is hitting anything the motor still stays on the same spot and moves left to right: nothing more.
However, if i say in repetier to pull out 100 filament everything works fine! But the test file that you gave the motor is stuttering/ clogging again. Am I missing something?
– checked everything and everything is working if I put code in to extrude 100 filament (repetier)
– If i put test file from: https://www.vicious1.com/import-extruder/ then the motor doesnt move/ starts stuttering/ clogging.
– If i output 100 on repetier then it outputs +- 3 mm. Maybe this is the problem? But i don’t see anywhere that i need to calibrate it.
Before i brake anything editing software: Hope you can help me 🙂December 5, 2016 at 9:16 am #22102
Did you adjust the vref on the drivers? Should be half the rated current if the stepper. When I first started, mine was way too high and I overheated everything and the prints got all weird looking.December 5, 2016 at 1:01 pm #22115
I think it is, since i bought the board with RV8825 drivers from this website. And the output is working fine if i only use the motor with 100 extrude, but when i put the test file on it’s clogging/ stuttering and most of the time it won’t even output anything. U can still push the filament through though. X, Y an Z are working perfectly too.
Tried to make a video today, but it’s not the lightest place. Try to make a video again tomorrow. Hope u guys can help me fix it, can’t see what I’m missing.December 5, 2016 at 1:11 pm #22117
Double check the vref with a multimeter. I bought the board here but the mk8 somewhere else, and the default vref is way too high. Mine is at .85 but default is like 1.6v. If u made sure, then check your slicer settings.December 6, 2016 at 3:10 am #22146
I think your right, tried to turn the screw as described in this video: https://www.youtube.com/watch?v=3JazIrPXGPo
Still need to install the headbed, everything is curling. But first waiting for someone that has a multimeter and can help me with this 🙂 (0 knowledge about that stuff)Slicer settings and other setttings are correct.
Thanks in advance, and if it’s still not working after that then you hear it from me
You must be logged in to reply to this topic.