EZstruder spring enhancer

by texsc98, published

EZstruder spring enhancer by texsc98 Jul 1, 2013
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2143Views 435Downloads Found in 3D Printer Extruders


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.

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I'm not quite understanding where this goes. Does the cylinder go inside the spring? It might help if you added a picture of one installed on the EZStruder. Thanks!

I had the same problem of insufficient spring pressure, and this part made a huge difference to getting reliable results.

The circular tower was a big gooey mess for me and I killed the print after a few mm of it, but that didn't matter; it holds on just fine.

Highly recommended.

Yea mine didn't print the vertical cylinder very good either, but like yours it was good enough... Still using the same one to this day!