1 Topic by earthcare (edited by earthcare 2017-11-17 03:02:46)

  • earthcare
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Topic: Can anyone explain this?

I have a DaVinci Jr printer, and am trying to print some prototype parts for testing. Ultimately, they will be extruded in 4m lengths, but for testing purposes, I have created an STL that will - or rather should - print a 149mm length vertically. However, I have now wasted half a spool of filament trying to get it to print: from about 60mm above the platen, the print starts to fall apart or have significant gaps in it. Can you advise why this is and what can be done to rectify the issue? Photo attached.

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2 Reply by carl_m1968

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Re: Can anyone explain this?

No photo but sounds like your temperature is dropping over time.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3 Reply by earthcare

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Re: Can anyone explain this?

Sorry, photo now attached.

4 Reply by yizhou.he

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Re: Can anyone explain this?

if your Jr. everything is stock, I would guess hotend filament partially jammed.
Cause of jamming overtime can be
1. Your temperature is dropping over time. Try to raise printing temperature and see if it gets better.
2. Hotend cooling fan not powerful enough can also cause this.

Since option 2 usually will jam it for good, but what you have seems repeatedly come and go, option one is more likely.

It will be easier to identify the problem if you have more detail information if you have mod your printer in anyway.

(Da Vinci 1.0, Jr. 1.0 RAMPS, miniMaker) X4, (Creality CR-10S, CR-10 mini, Ender-3) X4, Anycubic MEGA X4, Anycubic Chrion X1, ADMILAB Gantry X2 (MonoPrice Maker Select V2, Plus, Ultimate)X4--Select mini X1, Anycubic photon X4, Wanhao duplicate D7 X1.
iNSTONE Inventor Pro X2, CTC Dual X2, ANET-A8, Hictop 3DP-11, Solidoodle Press, FLSUN I3 2017X1