VC4-400 Initial Core XY graph
Hey all. Starting the belt tension cal/tuning. How is this looking? Any suggestions welcomed.
15 Replies
This is where I've ended
What did you change? Did you properly tension the belts, because it looks much better in the last one
Mine looked similar to your initial one, cause was improperly tensioned belts and also a skewed gantry. A shaper calibration would be useful to do next I think.
Found that the clamps on the front of the toolhead were slipping. I didnt have enough belt in to start.
Ah yes, that makes sense.
Then yeah tensioning much more than I initially anticipated.
I'm not sure if you're familiar with tuning the belts by plucking them and checking the resonant frequency using the real-time analysis tool? But here's a reference that will help you with that: https://discord.com/channels/582187371529764864/1223286652949106748/1272625387871928494
mine is a 500 so I tuned it to 85.4Hz
Not that your graphs are bad, but it helped me a lot with further problems.
Thanks, I haven't tried the pluck method. I think next is adding hybrid belts before I start any test prints. Also adding enclosure now that it has arrived.
You could do that, yeah. Generally it's recommended to properly tune your belts in CoreXY configuration before adding hybrid. But then again you can simply loosen up the hybrid belts and do the CoreXY belts before tensioning the hybrid belts.
I'm just following the guide. These graphs are just coreXY belts. Next is adding hybrids.
Hmm, I said that because the guide also says
And running shaper graphs before adding Hybrid basically allows you to spot issues like binding and such in time. I have no idea why they put that section before the input shaper section, as if you experience binding after already having added the hybrid belts it might be a pain in the butt to figure out what's actually causing it.
But you'll probably be fine
To go back and tune the XY after your going to need to unplug the hybrid
You probably also got a little bit of skew in your gantry but not much sorry for the late reply
For belts I went 1 tooth past the small indent so that when you push the grabber and it pulls the belt back a little it still has good grip