• 3 Posts
  • 11 Comments
Joined 1 year ago
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Cake day: July 2nd, 2023

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  • Right, I guess I assumed CPU naming makes sense, so surely the lower number CPU must be worse in every way, right?😜

    Looks like going with the 7700X is a no-brainer for me then.

    As for your upgrade recommendations: Can you explain the benefits of a higher-end mainboard? I would think the mainboard shouldn’t make a huge difference, as long as it’s from a reputable manufacturer and compatible with all the other parts.

    Thanks for your help!




  • This seems to be a bug in the slicer. I’m seeing the same issue in OrcaSlicer if the skirt height is set to more than one layer (even if the skirt is disabled). This makes sense if a skirt is used (can’t print a continuous spiral if you have to switch between printing the object and the skirt), but not if it’s disabled.

    What slicer are you using? If it’s a PrusaSlicer fork, this is likely the same bug.



  • From a cursory read of the datasheet, using the “dead time control” pin seems to be the way to go. Basically, this pin is used to set the voltage, while the error amplifier inputs (that’s the closest function to “over current protection” this chip has) are used to adjust the output according to the load. For your application, you probably don’t need to use them at all.

    My instinct would be to disable the error amplifiers by connecting pins 1,2,15 and 16 to GND. You can then connect the wiper pin of the potentiometer to the deadtime control input, with the other pins of the potentiometer connected to GND and 3.3 V.

    I haven’t worked with this chip before, so take this with a grain of salt. You should probably use a simulation tool to check the circuit before you start destroying chips.





  • If that freehub is constructed like the ones I’ve taken apart before, you’re out of luck. Like you suspected, the teeth lock the rotation of the freehub to the hub, unless the screw in the back is taken out first.

    You can try hammering in a (slightly larger) torx key or using an easy-out (probably won’t work if it’s very tight).
    As a last resort, you could try to drill out the screw (only so far that the freehub comes off, you don’t want to drill into the hub). Then you should hopefully be left with enough left of screw to grab with a pipe wrench.