Help with Slic3r?

I have a problem when printing, about 2/3 into the print and again once its finished the printer decides to destroy the print by randomly extruding all over it! The print wouldn't be too bad if it wasn't for this, I can't work out what is going on. It does it with any print I slice myself. This is the last section of G-code at the point I know it happens:
G1 X97.989 Y105.201 E0.01283
G1 F2700.000 E-4.00000
G1 X99.999 Y110.001 F1800.000
G1 E4.00000 F2700.000
G1 X90.035 Y100.037 E74.15543 F776.593
G1 F2700.000 E-4.00000
M107
G1 X2 Y190; park the machine
M0; stop
; filament used = 1560.6mm (3.8cm3)

Bizarre - it's definitely telling the printer to squirt 74mm of filament just before it parks- what do you have in your "end gcode" ?
Ray

What version of slicer are you using?
You could try replacing the settings with mine or dc42's they are posted on the forum somewhere, I go dig them out and link them here in a mo....

[Edit] - My Slic3r Settings

[Edit] - Dc42's settings - mine were based on these, i'm not sure if they are still current as they were originally posted about a month ago

Matt

Edited 2 time(s). Last edit at 02/17/2014 05:43PM by iamburny.

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Limited Edition Red RS Ormerod 1 #144 of 200 - RRP 1.09fw
iamburnys Ormerod Upgrades Github
Follow me on ThingiVerse My Designs

looking again, it's unlikely that it's in the printer settings->custom G-code, like I'd assumed earlier - the offending line is
G1 X90.035 Y100.037 E74.15543 F776.593 (E74.15543 means to extrude 74+mm of filament while moving to X=90.035, Y=100.037 at a speed of 776.593 mm/min - itself a strange speed)

and it's followed by a retraction which is then followed by a standard looking "End G-code"

M107
G1 X2 Y190; park the machine
M0; stop

there's a chance though that

G1 X90.035 Y100.037 E74.15543 F776.593
G1 F2700.000 E-4.00000

has also slipped into your "end g-code" so you should check this first but also look at retraction settings in general - could you export your settings and upload them? Maybe something will jump out,

Ray

That would be great. Its version 1.0.0RC2.
I downloaded the standard ormerod settings and haven't changed them much, the start and end code are as they were.

I added links to the slic3r settings ^^above^^



Matt

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Limited Edition Red RS Ormerod 1 #144 of 200 - RRP 1.09fw
iamburnys Ormerod Upgrades Github
Follow me on ThingiVerse My Designs

Thanks for your help with this guys I have attached the settings I was using. I will give these new settings a try and see how I get on, the frustrating thing is that I work away during the week so won't be able to try until the weekend

Nothing jumps out at me, other than some of the options don't have a value - I presume that's because the default Ormerod settings don't cover the newer options in slicer 1rc2 (which is relatively recent) - I never got round to using the defaults (It's a nightmare finding the folder to copy them to on a mac!), so when I started out and when I upgraded to rc2 I made new settings from scratch. I guess that using Matt's will fill in the gaps and hopefully you'll have a more fun weekend this time round

Cheers

Ray