<![CDATA[SoliForum - 3D Printing Community — 1st layer printing fine second doesn't]]> 2013-08-08T18:55:25Z PunBB https://www.soliforum.com/topic/2528/1st-layer-printing-fine-second-doesnt/ <![CDATA[Re: 1st layer printing fine second doesn't]]> @Staffordknot

I think you are correct with bed not moving up the correct height at the beginning. If I knew how to read the gcode properly I'd edit it and remove the second layer completely. I've tried marking each layer with the comment gcode feature in Repitier Host but I don't know what I'm doing. It may have something to do with the backlash. So I'll try the poor man's anti-backlash nut that's on the wiki: wiki.solidoodle.com/z-axis-anti-backlash

]]> https://www.soliforum.com/user/2894/ 2013-08-08T18:55:25Z https://www.soliforum.com/post/32309/#p32309 <![CDATA[Re: 1st layer printing fine second doesn't]]> I never really solved this problem, i just accept by the time it gets past the three solid layers any extra material is able to ooze into the infil. In order to get the print to stick to the bed I had to really squish it into the bed, this resulted in the next layers extrusion having no where to expand into properly so it got spread about. It also meant the pressure needed to extract it would strip the filament on the xtruder gear and the print would fail. I never actually got round to putting my digital depth gage on to check the z movement but I was convinced for a long time the second layer wasn't moving up .3 layer height. When i get chance to test this i will.

My solution was to upgrade my heated bed so everthing stuck better and also to use a pipet to drip acetone glue onto the glass then spread it about. But be warned it stickssssssssss! Then u have to let the bed cool to get it off.

]]> https://www.soliforum.com/user/1769/ 2013-08-04T06:55:39Z https://www.soliforum.com/post/31849/#p31849 <![CDATA[Re: 1st layer printing fine second doesn't]]> 2n2r5 wrote:

I am actually making a picture guide trying to show all problems that could come in the first couple layers and how to fix them. But it sounds like you extrusion may not be quite right.

I tend to recalibrate everything at least once a week.

Here is the order that I cal everything:

Extruder Steps/mm
Bed Level
Z-tab (Bed height)
Filament Size (measure and change in slic3er)
Flow Rate Multiplier

For extra credit:
X-Y Steps/mm

once a week?  wow.. is that common?

]]> https://www.soliforum.com/user/2628/ 2013-08-04T01:22:10Z https://www.soliforum.com/post/31822/#p31822 <![CDATA[Re: 1st layer printing fine second doesn't]]> As soon as I stop messing with this other project I will be posting it in the help/repair/maintenance section.

]]> https://www.soliforum.com/user/1906/ 2013-08-02T04:29:30Z https://www.soliforum.com/post/31697/#p31697 <![CDATA[Re: 1st layer printing fine second doesn't]]> @2n2r5 That sounds awesome. Where can I find the doc when you finish it?

]]> https://www.soliforum.com/user/2894/ 2013-08-01T19:53:48Z https://www.soliforum.com/post/31663/#p31663 <![CDATA[Re: 1st layer printing fine second doesn't]]> is there a book on troubleshooting, calibration, and the less talked about stuff?

]]> https://www.soliforum.com/user/2211/ 2013-07-28T14:31:08Z https://www.soliforum.com/post/31204/#p31204 <![CDATA[Re: 1st layer printing fine second doesn't]]> Drevous wrote:

Hi, I know this is an old thread but I'm having the exact same problem as the OP. My first layer prints perfect. When it gets to layer 2 the Z doesn't move enough or something and the 2nd layer is smashed. Layer 3 also smashes. By layer 4 everything clears up and the print finishes fine. I've messed around with slicer settings with no luck. Repitier .85 Slicer .97

I am actually making a picture guide trying to show all problems that could come in the first couple layers and how to fix them. But it sounds like you extrusion may not be quite right.

I tend to recalibrate everything at least once a week.

Here is the order that I cal everything:

Extruder Steps/mm
Bed Level
Z-tab (Bed height)
Filament Size (measure and change in slic3er)
Flow Rate Multiplier

For extra credit:
X-Y Steps/mm

]]> https://www.soliforum.com/user/1906/ 2013-07-28T13:51:57Z https://www.soliforum.com/post/31203/#p31203 <![CDATA[Re: 1st layer printing fine second doesn't]]> Hi, I know this is an old thread but I'm having the exact same problem as the OP. My first layer prints perfect. When it gets to layer 2 the Z doesn't move enough or something and the 2nd layer is smashed. Layer 3 also smashes. By layer 4 everything clears up and the print finishes fine. I've messed around with slicer settings with no luck. Repitier .85 Slicer .97

]]> https://www.soliforum.com/user/2851/ 2013-07-28T02:49:08Z https://www.soliforum.com/post/31182/#p31182 <![CDATA[Re: 1st layer printing fine second doesn't]]> Hi thanks,

I can't see any leakage, hopefully my e3d hotend will arrive this week and i will attempt your fix first (if it breaks the peek then it doesn't matter)

Emailed tech support yesterday and i have to call them today when they get in, not so fond of international call though grrr

]]> https://www.soliforum.com/user/1769/ 2013-06-06T12:54:57Z https://www.soliforum.com/post/25440/#p25440 <![CDATA[Re: 1st layer printing fine second doesn't]]> OK, this is an observation based on a personal experience...

Stripping has a few causes:
1.  Filament caught and not feeding into the hot end
2.  Tension set too tight and digs into the filament too much.  Can't get grip to feed into hot end
and here's my issue:
3.  Barrel not tight in the PEEK causing a gap between PTFE and barrel.  This causes filament to leak from the gap and for the pressure from the filament feed to lessen.  This stops the filament from feeding after the first moves (could be an entire layer or two) causing the gear to strip the filament.

I went through a couple of barrel cleanings (still attached to the PEEK) before I realized that the not-so-black around the barrel and PEEK connection was actually plastic that had almost carbonized.  Removed the barrel from the PEEK, drilled and torched it clean, then tightly attached the barrel to the PEEK.  I noticed immediately that I had put it in tighter than before as the black ABS remaining on the barrel went farther into the PEEK.

My suggestion is to look for leakage at the barrel-PEEK point. 
If there is none,  heat it up and CAREFULLY try to tighten the barrel in to the PEEK.  Use two channel locks, one for the barrel (with 2 nuts locked together to grip it) and one for the PEEK(wrap a towel around it to avoid marking it).  You should probably get about a 1/8-1/4 turn or so... the gap is usually not that big.
If there is leakage, you'll need to remove the barrel from the PEEK and clean the threads of the barrel and then replace it in the PEEK a little tighter than before.

I don't think I need to warn you that removing the barrel from the PEEK is not always a good idea.  Stripping the threads in the PEEK renders it nigh well useless (someone had a fix for this utilizing something from an auto parts store, but I'm not sure where), so be careful in doing anything involving the PEEK and barrel.

Just based on personal experience, YMMV

]]> https://www.soliforum.com/user/129/ 2013-06-05T20:55:50Z https://www.soliforum.com/post/25395/#p25395 <![CDATA[Re: 1st layer printing fine second doesn't]]> I'm still struggling with when the second layer is printing the filament gets stripped. Sometimes it happens on the perimeter sometimes its makes it to the infill.



The beds level as far as I can tell! The photo is a series of prints with me adjusting the z screw until it sticks well and looks about the right thickness. The last one is .32mm thick on the first level on the brim. I'm not sure why the brim has a nice even seal but the first layer infill has gaps in it?

I've mounted the reel above it the printer and happy its rotating fine.

I'm going round in circles here? Am I missing something on the calibration? Once it gets past the second layer it looks great, although on solid infill or perimeters it still might stop extruding.

I've calibrated the filament feed rate and extruding rate to get a single perimeter wall thickness of .4ish. I've got first layer extrusion factor at 150%

Its been a month now and all i've successfully printed is lawsys mk4 extruder lol.

I have measured the two layers printed together and its .7 micron.

Help please really getting feed up. I need to print out yoda and heart gears!!!

]]> https://www.soliforum.com/user/1769/ 2013-06-05T20:21:03Z https://www.soliforum.com/post/25393/#p25393 <![CDATA[Re: 1st layer printing fine second doesn't]]> might be the bed not level, or z is too close to bed... since you "press" it down and it works. and when it spring back up it got stuck...
http://solidoodletips.wordpress.com/201 … rst-layers

]]> https://www.soliforum.com/user/651/ 2013-05-24T18:33:36Z https://www.soliforum.com/post/23969/#p23969 <![CDATA[Re: 1st layer printing fine second doesn't]]> Thanks,

Here are my settings

19:16:49.484 : OpenGL renderer:GeForce 8500 GT/PCI/SSE2
19:16:49.484 : Using fast VBOs for rendering is possible
19:19:11.140 : start
19:19:11.140 : echo:Marlin 1.0.0
19:19:11.140 : echo: Last Updated: 2012-08-14 | Author: Lawsy
19:19:11.140 : echo: Free Memory: 1499  PlannerBufferBytes: 1232
19:19:11.140 : echo:Stored settings retreived:
19:19:11.140 : echo:Steps per unit:
19:19:11.140 : echo:  M92 X88.00 Y88.00 Z2268.00 E101.97
19:19:11.140 : echo:Maximum feedrates (mm/s):
19:19:11.140 : echo:  M203 X500.00 Y500.00 Z5.00 E45.00
19:19:11.140 : echo:Maximum Acceleration (mm/s2):
19:19:11.140 : echo:  M201 X9000 Y9000 Z100 E10000
19:19:11.140 : echo:Acceleration: S=acceleration, T=retract acceleration
19:19:11.140 : echo:  M204 S3000.00 T3000.00
19:19:11.140 : echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s),  Z=maximum Z jerk (mm/s)
19:19:11.140 : echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
19:19:11.140 : echo:Home offset (mm):
19:19:11.140 : echo:  M206 X0.00 Y0.00 Z0.00
19:19:11.140 : echo:PID settings:
19:19:11.140 : echo:   M301 P22.20 I1.08 D114.00
19:19:11.390 : echo:Active Extruder: 0
19:19:11.390 : FIRMWARE_NAME:Marlin V1; Sprinter/grbl mashup for gen6 FIRMWARE_URL:https://github.com/mlaws/solidoodle2-marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:Solidoodle EXTRUDER_COUNT:1
19:19:22.968 : echo:Steps per unit:
19:19:23.015 : echo:  M92 X88.00 Y88.00 Z2268.00 E101.97
19:19:23.015 : echo:Maximum feedrates (mm/s):
19:19:23.015 : echo:  M203 X500.00 Y500.00 Z5.00 E45.00
19:19:23.015 : echo:Maximum Acceleration (mm/s2):
19:19:23.015 : echo:  M201 X9000 Y9000 Z100 E10000
19:19:23.015 : echo:Acceleration: S=acceleration, T=retract acceleration
19:19:23.031 : echo:  M204 S3000.00 T3000.00
19:19:23.031 : echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s),  Z=maximum Z jerk (mm/s)
19:19:23.031 : echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
19:19:23.031 : echo:Home offset (mm):
19:19:23.031 : echo:  M206 X0.00 Y0.00 Z0.00
19:19:23.031 : echo:PID settings:
19:19:23.031 : echo:   M301 P22.20 I1.08 D114.00

]]> https://www.soliforum.com/user/1769/ 2013-05-24T18:23:42Z https://www.soliforum.com/post/23966/#p23966 <![CDATA[Re: 1st layer printing fine second doesn't]]> See attach files or you can copy and paste the output from Repetier-Host when you connect to your 'doodle.

10:55:17.465 : FIRMWARE_NAME:Marlin V1; Solidoodle mashup FIRMWARE_URL:http://www.mendel-parts.com PROTOCOL_VERSION:1.0 MACHINE_TYPE:Mendel EXTRUDER_COUNT:1
10:55:17.466 : N6 M220 S100 *71
10:55:17.472 : N7 M221 S100 *71
10:55:17.479 : N8 M111 S6 *79
12:03:34.891 : N3761 M503 *54
12:03:34.936 : echo:Steps per unit:
12:03:34.942 : echo:  M92 X88.00 Y88.00 Z2268.00 E115.00
12:03:34.942 : echo:Maximum feedrates (mm/s):
12:03:34.943 : echo:  M203 X500.00 Y500.00 Z5.00 E45.00
12:03:34.943 : echo:Maximum Acceleration (mm/s2):
12:03:34.944 : echo:  M201 X9000 Y9000 Z100 E10000
12:03:34.944 : echo:Acceleration: S=acceleration, T=retract acceleration
12:03:34.944 : echo:  M204 S3000.00 T3000.00
12:03:34.944 : echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s),  Z=maximum Z jerk (mm/s),  E=maximum E jerk (mm/s)
12:03:34.945 : echo:  M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
12:03:34.945 : echo:Home offset (mm):
12:03:34.945 : echo:  M206 X0.00 Y0.00 Z0.00
12:03:34.945 : echo:PID settings:
12:03:34.948 : echo:   M301 P10.15 I0.17 D155.14

]]> https://www.soliforum.com/user/1906/ 2013-05-24T16:09:34Z https://www.soliforum.com/post/23943/#p23943 <![CDATA[Re: 1st layer printing fine second doesn't]]> Thanks 2n2r5,

Erm just remind me where my eeprom settings are? Sorry I'm not overly computer literate.

It judders excessively the whole bed while it drags over, it didn't used to do this.

]]> https://www.soliforum.com/user/1769/ 2013-05-24T15:16:11Z https://www.soliforum.com/post/23937/#p23937