I have a davinci Jr and all the prints were fine before recently now they are all very weak and easy to break. The bottom few layers of the prints are usually really strong buts as it moves up it gets weaker. If someone else has had this issue and knows how to fix it pleaseee tell me.
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Zapaer
3
@Price4124 I had this issue on another printer I worked with a while back.
Somehow and I still don’t know how this happened but the printer was extruding half of what it was supposed to extruding.
This resulted in very interesting printing, because the parts would look fine but only be half the weight of what it was supposed to be.
Which also resulted in it being very weak and easily breakable.
The way to fix this is by re-uploading the firmware. And if that doesnt work, check if when you are clicking extrude 100 mm, the printer actually takes 100mm of filament into the hotend. And then based on the reading, you can adjust the extruder steps/mm in the firmware.
Basically, you want to measure out 100mm on a spool of filament. Then tell the printer to extrude 100mm, and see how much actually goes into the hotend.
Afterwards you take actual/theoretical and get a ratio and then you take that ratio and multiply it by the current steps/mm value for the extruder in your firmware.
Let me know if this helps!
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