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Topic: problems with top layer

Hey everybody , ive got an Aurora 3d printer verry similar to the pursa i3 printer and im using repetier host and slice stuff up usong the cura engine , i just find it easyer to use than the normal one. Ive been having the isue that infil and the top layers are coming ou crapy, they dont hold up and look very bad sides are ok but the top is just rubish, does anyone know how i can fix this ?

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Re: problems with top layer

Any pics?

Printit Mason and Printit Horizon printers
Multiple SD2s- Bulldog XL, E3D v5/v6/Lite6, Volcano, Hobb Goblin, Titan, .9 motor, Lawsy carriages, direct Y drive, fishing line...the list goes on
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Re: problems with top layer

how many layers is top?

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

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Re: problems with top layer

I set it on 4 just mor layers the bigger the mess

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Re: problems with top layer

here is an image

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2014-11-11 10.36.33.jpg
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Re: problems with top layer

So if I think I am seeing correctly it looks as though that cube has zero infill?  Therefor you have nothing for the top layer to build upon.  What you are really having a problem with is bridging.  If you really need the cube to be hollow then you are going to have to get creative and print the top separately then use some Acetone to glue it on top of the cube.  If you don't care if it is hollow than you can try using 20% infill.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

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Re: problems with top layer

i have redone the print with support but the top layer finish is still not good. it has lots of holes and doesn't look good or hold water or anthing

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2014-11-11 17.06.28.jpg
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Re: problems with top layer

support is different than infill did you use infill?
You have some pretty heavy backlash so you may want to adjust your belts and remove any play from your printer.
Extrusion looks to be off also so until you do some calibrations don't expect great results.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

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Re: problems with top layer

is that a cube for doing flow calibrations? its not the correct cube if so. the correct cube has no top both are on thingaverse

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

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Re: problems with top layer

oki so i made my own thing that i believe will test out every thing also i printed a tensioner  , and here attached are the results what do you think ? i also made this box as well what do you think  ?

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2014-11-11 18.50.34.jpg
2014-11-11 18.50.34.jpg 2.34 mb, file has never been downloaded. 

2014-11-11 22.40.47.jpg 2.61 mb, file has never been downloaded. 

2014-11-11 22.42.53.jpg
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Re: problems with top layer

I think you need to print a simple 20 mm cube that has one bottom layer and a single perimeter with no top layer.  Then use a caliper to measure the wall thickness and adjust your extrusion multiplier until that wall thickness is 120% of your nozzle diameter.  Of course none of that will help if you haven't dialed in your steps per mm in EEPROM.  Basically if you call for 100 mm's of filament does your extruder actually move 100 mm's?

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

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Re: problems with top layer

oki so i found that i was extruding a little too much 3.3 mm to be precise but i believe i have an issue i ran the test a couple of times and at on time it was dead on and an other couple of times it extruded a bit too much, aswell i taught it would be best to adjust for the 3.3 mm and goggled how to do it but the button to go to the firmware is grayed out ... anyone has any idea how to fix this ?

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firmware not enabled.png
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Re: problems with top layer

oki so i found that i was extruding a little too much 3.3 mm to be precise but i believe i have an issue i ran the test a couple of times and at on time it was dead on and an other couple of times it extruded a bit too much, aswell i taught it would be best to adjust for the 3.3 mm and goggled how to do it but the button to go to the firmware is grayed out ... anyone has any idea how to fix this ?

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Re: problems with top layer

i have done a cube of 20 mm with 3 mm borders and here are the results

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20 mm test cube.stl 4.9 kb, 1 downloads since 2014-11-12 

2014-11-12 12.07.13.jpg
2014-11-12 12.07.13.jpg 3.11 mb, file has never been downloaded. 

2014-11-12 12.07.24.jpg
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Re: problems with top layer

some more images of the prints

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2014-11-11 23.54.57.jpg
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2014-11-12 12.10.01.jpg
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