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Topic: a little help for a new guy

I have had my printer for almost a month.  I have printed several things (30-40 items)  but as of lately i have had some problems with my layers sticking together well.  I don't know if its because as i print more i go to larger things and the heat difference is causing some separation or if its something else??? Also i don't really know where to go with my settings to tweak them.  I haven't really fount a guide to show me anything on which direction to go.  I tried to print more outer wall thickness (10 instead of 3) thinking more surface area would hold more but a couple bolts i printed just broke just as easy as before so i know im not getting good adhesion between layers

Its a bone stock solidoodle 3 right now.  I have the plexi to enclose it and have done up the sides but have to make the top for it yet.  I have glass for the print bed but have yet to get it put in there because i have been out of town.  I also have a top mount spool holder for it.  I just need some help with getting this issue lined out so i can more forward with some projects i would like to do with the printer.  but i need ALOT more strength out of my prints before i can call it usable.

2 (edited by MolecularConcept 2013-08-12 17:21:07)

Re: a little help for a new guy

post pics so people can SEE whats wrong they might be able to better help.

have you calibrated your flowrate yet?

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Re: a little help for a new guy

X2 on the pics smile

what temperature are you printing at? and where is the filament from? Strength is a tricky thing and prints will always be weaker along the z axis just because of how 3d printing works but it may be that you do not have some settings right to get as much layer bonding as possible also.

4 (edited by innovate 2013-08-12 17:33:42)

Re: a little help for a new guy

You can use this link to Ians Blog which he goes over slic3r settings and repetier settings this really helped me when i got started.

http://solidoodletips.wordpress.com/201 … tier-host/

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Re: a little help for a new guy

I will have to get some pictures as i dont have anything with me right now.  I will take some of some broken and some not broken parts. 

As far as print settings im printing at 203 on the head and 116 on the bed.  I havnt calibrated my flowrate yet...got any links to a page that explains how to do that?  The filament is from a place called "automation technology"  but im having all the same problems from the filament from solidoodle and from the other stuff.

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Re: a little help for a new guy

hese is a link to the wiki for calibrations---> http://wiki.solidoodle.com/solidoodle-1 under 'extruder calibrations' there is  Ian's video link.

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Re: a little help for a new guy

Are you printing with Abs or PLA im thinking your printing with ABS because of the temp that you are using on the head. Try printing around 195 on the head thats the temp that I print on when using ABS, but i use octave ABS fillament, but it all depends on your fillament too.

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Re: a little help for a new guy

sometimes i get a horizontal crack in my print too(larger solid prints).  kinda like warping, but at 60th layer. Can't really get a good closure b/c i feed my filament from top too so we are on the same boat. i feel your pain
do let us know your solution

Solidoodle2 with Ceramic tile heated bed http://www.soliforum.com/topic/2544/my- … eated-bed/
"1kg should last for an while" is a lie!

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Re: a little help for a new guy

Same problem RavensCrest if having. But my real issue is more when i print like bolts or a cylinder or something like that they snap off somewhere on the shaft.   I understand its only  plastic and I know it will be weaker one way due to how it prints.  But I dont know if its just me but my prints are insanely strong as far as compression and side wall strength.  But i cant get the layers to bond together well enough to have anything that I call a "reliable part".

I didnt get a picture of my stuff last night because i didnt get home until about 10pm and i leave for work at 4 am....and i sleep is semi important LOL

10 (edited by johnforeman 2013-08-13 19:24:47)

Re: a little help for a new guy

you could try bring your head temps up incrementally and test for bonding.  I saw a couple threads on here a few weeks ago where someone was doing just that.  I was able to eliminate the layer separation and increase bonding by raising my temps.  Another thing i did was increase my extrusion multiplier to make for a wider thread.  This has the effect of giving the layers more to bond too.  If size is critical, you may not be able to use this method though.  What i'm discovering is i have several saved configurations based on what function my part is going to serve..  but, I'm still new at this also, I've only been printing for about two weeks now.  But I have been keeping my printer running at least 8/10 hours a day.  So far, 50% of what i've printed is for testing/calibration.  the other 50% is spare printer parts.

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Re: a little help for a new guy

agree with high temp... but higher temp also cause warp :-(
oh well, you just have to test it, maybe for small piece like bolts its fine, btw what's you infill?

Solidoodle2 with Ceramic tile heated bed http://www.soliforum.com/topic/2544/my- … eated-bed/
"1kg should last for an while" is a lie!

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Re: a little help for a new guy

if i remember right its 30% infill...i agree higher heat can cause more warping but if you can keep the whole thing warm it would stop the warping.  Not that i have achieved this but from what im told warping is caused more due to the difference in cooling and the actual temp it is at????

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Re: a little help for a new guy

ok here are some pictures of a print that did go all the way through but the parts are unusable.  they were carage replacement parts...but the thinner parts broke right away and you can see that they sure didnt bond well AT ALL to the layers below.  Also the larger part warped but i have glass im putting on tomorrow that i hope will take care of that.  any suggestions?  Printed at the same temps and all that.  I watched the videos and read all the links you guys posted.  It just goes through general usage and so on.  NO help what so ever in troubleshooting or what settings to change to fix different problems. 

Thanks in advance guys!

http://i1156.photobucket.com/albums/p564/chadsplace80/20130813_211144_zps9afc5e4b.jpg
http://i1156.photobucket.com/albums/p564/chadsplace80/20130813_211208_zps092bb65f.jpg
http://i1156.photobucket.com/albums/p564/chadsplace80/20130813_211156_zpsd17acc0a.jpg
http://i1156.photobucket.com/albums/p564/chadsplace80/20130813_211137_zpsd10d6c70.jpg
http://i1156.photobucket.com/albums/p564/chadsplace80/20130813_211150_zps6b453167.jpg

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Re: a little help for a new guy

Can you post what settings you had in SlicR for the print.

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Re: a little help for a new guy

All the printing software is on my other computer (laptop not fired up right now) But I will get them for you tomorrow morning.  I don't think its a slicer setting because I have about 6 or so different settings to do things from single layer to solid fill and all in between and they all act exactly the same as far as this problem. 

Also if you guys look at the pictures I made sure that the broken off pieces were flipped so you can see the 2 surfaces where they broke It looks to me like the perimeter doesn't have any trauma to the plastic (lightened from being pulled apart).  Only the corner area on a couple places.  I had thought about higher temps but im printing with it set at 203!

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Re: a little help for a new guy

here are screen shots of my slicer configs.  once again thanks for taking a look guys.  Its just driving me nuts to print and have unusable parts!

http://i1156.photobucket.com/albums/p564/chadsplace80/0_zpsc56a7771.png
http://i1156.photobucket.com/albums/p564/chadsplace80/9_zps56f5a138.png
http://i1156.photobucket.com/albums/p564/chadsplace80/8_zps7d8ffdcb.png
http://i1156.photobucket.com/albums/p564/chadsplace80/1_zps71b4bd3e.png
http://i1156.photobucket.com/albums/p564/chadsplace80/3_zpsaf5ec45b.png
http://i1156.photobucket.com/albums/p564/chadsplace80/5_zps734194c6.png
http://i1156.photobucket.com/albums/p564/chadsplace80/7_zpsba4fb375.png
http://i1156.photobucket.com/albums/p564/chadsplace80/4_zpsff92a806.png
http://i1156.photobucket.com/albums/p564/chadsplace80/2_zps748e7143.png
http://i1156.photobucket.com/albums/p564/chadsplace80/6_zps37037299.png

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Re: a little help for a new guy

Your filament diameter is way off, 3mm instead of about 1.75mm, that was teh first thing I noticed. May or may not be responsible.

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Re: a little help for a new guy

yes, that's true, and also retraction settings aren't a bit too high?
On my stock Solidoodle profile it was 1 mm and 70 mm/s, did they change the profile?

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Re: a little help for a new guy

I see what your saying with the filament size.  So i set that to 1.75 (i know it may not be exact but im just looking to get in the ball bark and tweak from there) and is the multiplier still supposed to be set to 1?

On the retraction i havnt touched those....its exactly as it was from Solidoodle.  And i do get just a bit of touching sometimes on some of the areas...but not all the time.

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Re: a little help for a new guy

http://www.soliwiki.com/Main_Page#Calibrations

You need to run through the calibration steps for the extruder and flow rate. Ian was nice enough to help out with a guide. The the link above. Also, 90% infill is a bit high. Try 50% for critical parts and 20% for everything else. This will keep you from burning through plastic while still maintaining good integrity in your parts.

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.