danie
Posts: 2
Joined: Wed Oct 30, 2019 9:29 am

Retraction doesn't work

Hello,
My DELTA printer's extruder retraction doesn't work.

I't meanse

First, my printer has this problem.
- retraction fail.

When it works retraction since printing something,
Step motor must work push- rewind fast - push right?
my printer work push- push fast - push
it' cannot rewind the filament.

I switched motor driver, step motor and reset firmware.

But it still cannot rewind the filament.

What should I do?
I need your guys opinions. Cause I believe you guys better than me.
Please help me.
horst.w
Posts: 861
Joined: Fri Oct 17, 2014 5:00 pm

Re: Retraction doesn't work

Hi,
other functions backwards are running? (manual movement extruder back, filament changing ?)

retraction distance, other than zero in tab extruder of the setting window is set?

machine type is right? - delta robot.


horst.w
GER
danie
Posts: 2
Joined: Wed Oct 30, 2019 9:29 am

Re: Retraction doesn't work

horst.w wrote: Wed Oct 30, 2019 11:46 am Hi,
other functions backwards are running? (manual movement extruder back, filament changing ?)

retraction distance, other than zero in tab extruder of the setting window is set?

machine type is right? - delta robot.


horst.w
GER
I uploaded made a video on youtube
https://youtu.be/tTrv_9Rx4KE
Please check this first.

Manual movement have problem too. only work forward. push forward-> work forward, push backward->work forward !!
Machine type is delta
First, I was suspected at slicer problem, gCODE..something wrong with that. But It was not.
I used cura3.0, cura 4.3, and simplify3D. And even I'm using other delta printer too. It's still fine!.
horst.w
Posts: 861
Joined: Fri Oct 17, 2014 5:00 pm

Re: Retraction doesn't work

It sounds like a gear is sliping on its axis or a ball bearing blocs.

I can only say what I would try out:

- testing motors movement forward and backward without filament (empty). Next step

- testing the extruder with filament but without a nozzle.

Surely most users here have experiences also with hardware, but this is the forum of a slicer software.
I'm coming from the german section of reprap-forum and there are a lot of specialists hardware and software and DIY deltas included. If you want to ask there, english is no problem: https://reprap.org/forum/list.php?252

H.

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