Under the microscope - Extruder Gears

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basilfawlty
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Joined: Sat Aug 06, 2016 5:29 am

Under the microscope - Extruder Gears

Postby basilfawlty » Thu Dec 08, 2016 4:33 am

After struggling with clogging issues I followed Jetguy's advice and picked up some of these extruder gears. Testing begins later this week.

This is the stock extruder gear in profile. Quite the difference in the aggressiveness of the teeth. The aftermarket gear is also shorter than the Raise3D gear but I don't think that will make any difference.
File_000.jpeg


This is the new one
File_001.jpeg
Raise3D N2+

eagle1xray
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Joined: Sun Dec 18, 2016 8:48 pm

Re: Under the microscope - Extruder Gears

Postby eagle1xray » Wed Jan 04, 2017 12:59 am

What ever happened to the results of this test?

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basilfawlty
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Re: Under the microscope - Extruder Gears

Postby basilfawlty » Wed Jan 04, 2017 4:12 am

Not complete success. The new gears improved reliability but not to 100%. It seems that the Esun Pro line of ABS filament builds up on the inside of the nozzle and over time the residue clogs the opening. I need to change out the nozzle for a clean one after every 1kg spool. I don't think upgrading to a stronger extruder will make a big difference. A clogged nozzle is a clogged nozzle.
Raise3D N2+

eagle1xray
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Re: Under the microscope - Extruder Gears

Postby eagle1xray » Thu Jan 05, 2017 5:23 pm

because i may be feeling effects similar to yours...ill look into servicing this nozzle then! thanks!

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walshlg
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Re: Under the microscope - Extruder Gears

Postby walshlg » Thu Jan 05, 2017 5:43 pm

if you are getting unmeltable junk inside your nozzle then it is most likely coming from the filament, it may be picking up dust from the air. You may want to try making a guide for the top end that will hold a slit sponge and put a few drops of a clean oil on it , letting the sponge wipe off the filament as it passes through.

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basilfawlty
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Re: Under the microscope - Extruder Gears

Postby basilfawlty » Thu Jan 05, 2017 5:44 pm

What type of oil?
Raise3D N2+

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walshlg
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Re: Under the microscope - Extruder Gears

Postby walshlg » Fri Jan 06, 2017 5:27 pm

I believe just a small drop of mineral oil, just enough to collect the dust. Some folks actually try to lube the filament, I don't think that is recommended as its going to react with the filament.


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