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I was having issues with my EZstruder slipping trying to grip filament so I wanted to increase the grip by increasing the tension caused by the spring. So I just created a 2mm spacer that the spring can rest on.
It gives it enough torque now that if it's being told to extruder, but gets too much "backpressure" from trying to extrude too much for the motor to handle the motor will skip, instead of the filament slipping.
I had previously tried a 3mm spacer but that caused too much torque and a failed print after 3 hours :(
This 2mm spacer though I have successfully ran a 12 hour print ( the vase above) with a .5mm nozzle at .15mm layer height at 88mm/s. If there was any filament slippage it definitely wasn't obvious from the print, it turned out GREAT!
I printed it at .15mm layer height with a .5mm nozzle... But you can print it however your printer can, it doesn't have to be exact. It's just lifting the base where the spring rests to put more tension on the filament.
It is semi-difficult to get in there with the spring, but it is possible without removing the arm first! I just held it in place and pushed it onto the arm first, then used a screwdriver to pry the top of the spring into the upper rest.
EZstruder spring enhancer by texsc98 is licensed under the Creative Commons - Attribution license.
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