1 Topic by N-p-p

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Topic: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

Hello.

Have had four runs where plastic has not flowed out the extruder nozzle. 

Short description: The nozzle has been heated up to 195 degrees, and the nozzle flow has been tested by oozing plastic out of the nozzle.  Clicked "Run" on a loaded and sliced file, and no plastic comes out of the nozzle.


Long description:
1. Loaded file under Repetier shell.
2. Heated up both bed and nozzle, (individually, in that order).
3. Drew violin string out of nozzle.
4. Inserted plastic into nozzle channel,
    and clicked Extrude button on Repetier shell until plastic came out of the extruder nozzle.
    Cleaned off excess plastic from nozzle.
5. Clicked "Run" on Repetier shell.
6. Watched the run.
    (Problem):
    * > Did  not  not  not  observe  any  plastic  being extruded from the extruder nozzle. < *

Other notes:
Changes in Repetier do not seem to change the lack of plastic flow.

Between runs, I reviewed the "Solidoodle Wiki / How To Print" instructions, and then generally rambled through the
SoliForum messages, looking for answers.

Everything I have checked about the physical Solidoodle is all right.
Had the bed too high, and have a scrape on the Kapton, but do not need to replace it.
Z-stop turned down 1/4 turn after that.
I have not started other calibrations.


So:
What do you people who are further up the success ladder suggest I do?


James.

2 Reply by 2n2r5 (edited by 2n2r5 2013-12-07 02:56:26)

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

sounds like your z-offset  is set to high and it is preventing the filament from coming out of the nozzle. try to turn the z-offset screw (edit: looks like you already know where it is) clockwise 1/2 turn or so then try again.

SD3 w/ mods:
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.

2n2r5's Website

3 Reply by ronsii

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

make sure you have 'Dry Run' unchecked in repetier.... bottom of right pane

also if the bed is still too high it could block filament from coming out... is the drive gear on the extruder stepper motor clean?

4 Reply by Claghorn

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

I often don't see filament at first. I usually print a couple of loops of "skirt" so it will extrude a bit before really getting started on the model. Typically, most of the first loop of the skirt doesn't print for me. I always figured that's what skirts were for.

Claghorn's Website

5 Reply by Hazer

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

To sum up what everyone is saying:

1: Does your extruder motor/gear look like it is moving during the print?

2: If no, then check the 'dry run' in RH, or check log for errors, or check g-code for G1 commands that include the E#### in them.

3: If the extruder motor is turning, give it enough time to extrude. Otherwise, check your gear for to see if the teeth are clogged up creating slippage. Make sure your temp stays at 195. Etc Etc.

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6 Reply by N-p-p

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

Thank you for these tips.
My previous job was in a machine shop, so I may have been led astray by the knowledge of the (five ton) baby machines.
I commit to fully checking all these tips out.

James.

7 Reply by N-p-p

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

And here are the reports on the suggestions:

For 2n2r5:  Z-stop changed to a full turn clockwise, so I have what looks like half a mm distance.
                  About the thickness of the plastic coming out of the nozzle.

For ronsii:  1. "Dry Run" was dark.  I clicked on it during test run #1 - no change.
                         Kept looking at it during subsequent runs, and made sure it was dark.
                  2. The bed was taken down one turn on the Z-stop,
                         so I have a gap distance of one thread coming out of the nozzle, now.
                  3. Drive gear is clear.  I checked that between test runs # 3 and 4.

For Claghorn:  I have seen the "skirt" on the videos, but have to imagine the skirt right now.
                       
For Hazer: 1. The drive motor did not look as though it was moving.
                      It did not feel as though it was moving.
                      When I felt the filament going into the head of the extruder,
                          it was going in - but then coming out much the same distance(!)
                       My settings for "Extrude" is 10 mm for initial feeding, and 2 mm for test extrusions through the nozzle.
                       My settings for "Retract" I leave at 10 mm.
                       (I do not know if these settings are used during runs, so I am putting them in this message just in case).

                  2. Checking log for errors after test run # 5
                      Looked at the scrolling log, and wanted to use a search tool on it.
                      - Clicked on "Copy" as an experiment.

                      <I now declare Hazer as the winner of a lolipop>

                       "Unhandled exception has occurred in your application. . . . "
                         [Details]
                                       "***********Exception Text*********
                                         System.ArgumentOutOfRangeException: Index was out of range.
                                         Parameter name: index
                                         at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument
                                         at System.Throwhelper.   "()
                                         at RepetierHost.view.LogBox.getSelection()
                                         at RepetierHost.view.LogView.toolCopy_Cllick(Object sender, EventArgs e)
                                         at System.Windows.Forms.Control.OnClick(EventArgs e)
                                         at System.Windows.Forms.Button.OnClick(EventArgs e)
                                         at System.Windows.Forms.Button.OnMouseUp(MouseEventsArgs mevent)
                                         at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
                                         at System.Windows.Forms.Control.WndProc(Message& m)
                                         at System.Windows.Forms.ButtonBase.WndProc(Message& m)
                                         at System.Windows.Forms.Button.WndProc(Message& m)
                                         at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
                                         at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
                                         at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam,
                                                                                                                                                                 IntPtr lparam)
                                         "
Am now clicking on "Continue" in the exception box.
Nothing major that I can see.  I was returned to the Repetier shell.


I gather I must (re) install some programs.
This is progress.

Thank you to:
    2n2r5,
    ronsii,
    Claghorn,
    and Hazer.

So, Hazer, where do I send the flavoured and coloured solid sugar lolipop?
Or do you run on candy canes at this time of year?


James.

8 Reply by N-p-p

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

I now realize I have not entered tech details about my equipment.  Finding clues that mean something is wrong under the hood is a sign my persistence is paying off.

Details:
Windows 7 Home Premium, (a 32 bit Windows),
running on an AMD Athalon(tm) II x4  620 Processor running at 2.6 gig, which is a 64 bit processor.

The computer has 2 gig of memory.


Am looking forward to the solution(s).

James.

9 Reply by michael.t.albers

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

A couple of things from a noob.   Make sure the bed is heated.  I have mine on about 100C or the filament will not stick.  also, if you are not using glass and/or hairspray (aquanet), you will find your first prints will not stick at all.  Hope this also helps (took me three days of troubleshooting before I got my first print).

10 Reply by techbuilder2175

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Re: Extrude clicked: Test=OK -> Run on STL file -> No extrusion during op

michael.t.albers wrote:

A couple of things from a noob.   Make sure the bed is heated.  I have mine on about 100C or the filament will not stick.  also, if you are not using glass and/or hairspray (aquanet), you will find your first prints will not stick at all.  Hope this also helps (took me three days of troubleshooting before I got my first print).

Have had four runs where plastic has not flowed out the extruder nozzle.


Michael he's having trouble with the filament flowing through the extruder ,
he's not having an issue with filament sticking.

Powder coated steel enclosure, 1/4" Surface grounded hardened aluminum plate, MK2A Heat bed, .200 Polished fused quartz plate, Machined quick change hot bed mount, E3D hot end, Ramps 1.4, DRV8825 stepper motor drivers