<![CDATA[SoliForum - 3D Printing Community — Prints curling up]]> 2012-11-01T21:25:06Z PunBB https://www.soliforum.com/topic/401/prints-curling-up/ <![CDATA[Re: Prints curling up]]> solidoodlesupport wrote:
elmoret wrote:

Those are great ideas.

There's definitely some z-axis wobble. Also, the non-motor carriage of the Y-axis is broken, thanks to UPS. I'm going on a month now, waiting for a new part from SD. Right now half of the x-axis is held up by a zip tie.

How are people fixing the z-wobble?

I'm definitely cooling the electronics board. Very surprised SD doesn't include a $2 fan and $0.10 printed cover.

In case you haven't already, send us an e-mail to check up on that. We'll make sure your all taken care of.

I have. I got the y-axis belt pulley mount in the mail via UPS, still waiting on the carriage and z-axis threaded rod. I've sent an email and was told they're on the way. Fingers crossed!

]]> https://www.soliforum.com/user/221/ 2012-11-01T21:25:06Z https://www.soliforum.com/post/3873/#p3873 <![CDATA[Re: Prints curling up]]> elmoret wrote:

Those are great ideas.

There's definitely some z-axis wobble. Also, the non-motor carriage of the Y-axis is broken, thanks to UPS. I'm going on a month now, waiting for a new part from SD. Right now half of the x-axis is held up by a zip tie.

How are people fixing the z-wobble?

I'm definitely cooling the electronics board. Very surprised SD doesn't include a $2 fan and $0.10 printed cover.

In case you haven't already, send us an e-mail to check up on that. We'll make sure your all taken care of.

]]> https://www.soliforum.com/user/7/ 2012-11-01T19:26:28Z https://www.soliforum.com/post/3853/#p3853 <![CDATA[Re: Prints curling up]]> Those are great ideas.

There's definitely some z-axis wobble. Also, the non-motor carriage of the Y-axis is broken, thanks to UPS. I'm going on a month now, waiting for a new part from SD. Right now half of the x-axis is held up by a zip tie.

How are people fixing the z-wobble?

I'm definitely cooling the electronics board. Very surprised SD doesn't include a $2 fan and $0.10 printed cover.

]]> https://www.soliforum.com/user/221/ 2012-10-30T01:50:44Z https://www.soliforum.com/post/3648/#p3648 <![CDATA[Re: Prints curling up]]> That is a very ambitious print... I have had some problems with big prints doing similar things... It definitely has improved my results to add the case and or sides and keep the environment much warmer... Another thing I do on particularly difficult prints like this is to paint the side with a very diluted abs cement mixture.  As the print goes up I have a small quarter inch flat paint brush and put a light coat of the mixture on every 15-20 layers without stopping the print...  You can make it by adding a handful of abs shavings of your desired color to acetone...  It helps seal the layers very quickly when they are warm and has got me through a few very large prints.

As an aside, I notice you definitely have very noticeable ridges on the sides.  Assuming that you did not design for that, this is an issue that is being discussed... I'm not sure if it has been decided yet, but it seems to be coming from z wobble due to the threaded rod on the z axis or inconsistent z steps... If this is the case some of your layers may be being laid down a little bit above where they should which would make it much more difficult for them to adhere to the previous layer and cause some of this splitting.  Are you cooling your electronics board?

]]> https://www.soliforum.com/user/13/ 2012-10-29T19:10:49Z https://www.soliforum.com/post/3605/#p3605 <![CDATA[Re: Prints curling up]]> HelmutK wrote:

No, I have not printed anything that large yet.  4" oval shape in the base is about the largest I have printed so far.
Yes, I would think upper layer separation is due to thermal stress from the abs cooling and/or insufficient bonding between layers.
Don't count out potential issues with the roll of abs you have due to quality, moisture etc... If possible try another roll of abs.


I printed the whole thing again:

https://dl.dropbox.com/u/1786359/Photo%20Oct%2029%2C%2012%2034%2032%20PM.jpg
https://dl.dropbox.com/u/1786359/Photo%20Oct%2029%2C%2012%2034%2037%20PM.jpg
https://dl.dropbox.com/u/1786359/Photo%20Oct%2029%2C%2012%2039%2014%20PM.jpg
https://dl.dropbox.com/u/1786359/Photo%20Oct%2029%2C%2012%2039%2020%20PM.jpg

This one is definitely better, but still has splitting/warping.

This time:
Using ABS from Amazon
Extruder at 210
Bed at 100
Sides and front covered

The big problem I'm seeing (with an IR gun) is after about 2" have been deposited, the thermal gradient looks like this, from top to bottom:

190C (top layer)
35C (middle layer)
75C (bottom layers)

Which of course, leads to warping.

I could print each wall of the box individually of course, but I'd like to be able to print fullsize.

]]> https://www.soliforum.com/user/221/ 2012-10-29T18:47:31Z https://www.soliforum.com/post/3602/#p3602 <![CDATA[Re: Prints curling up]]> elmoret wrote:
HelmutK wrote:

You should be running a bed temp of 100.
Also make sure your "Temperature" settings in Skeinforge are set to 200. Mine were set to 190 by default and even when I manually set the extruder temp to 200 it would drop the extruder temp to 190. After changing the Skeinforge temp settings to 200 now the extruder would stay around 200 unless it was running the cool setting in that part of the print, which I have set to 5 in Skeinforge.
I also had layer separation issues when my extruder temp was 190.

Makes sense. I bumped it up to 210 in Skeinforge, so I can have some room for adjustment in Prointerface.

Anyone else have other tips? This print takes 12 hours, so I want to try to get it right...

HelmutK, have you printed anything with a base >15 sqin? Anything less than that, and I'm not seeing layer separation or peeling from the bed. Its gotta be thermal stresses.

No, I have not printed anything that large yet.  4" oval shape in the base is about the largest I have printed so far.
Yes, I would think upper layer separation is due to thermal stress from the abs cooling and/or insufficient bonding between layers.
Don't count out potential issues with the roll of abs you have due to quality, moisture etc... If possible try another roll of abs.

]]> https://www.soliforum.com/user/87/ 2012-10-29T16:54:27Z https://www.soliforum.com/post/3589/#p3589 <![CDATA[Re: Prints curling up]]> Sometimes changing the name of the profile gets it to stick.  Sometimes not.

]]> https://www.soliforum.com/user/14/ 2012-10-28T10:17:05Z https://www.soliforum.com/post/3513/#p3513 <![CDATA[Re: Prints curling up]]> tried everything .. ended up finding the slic3r.ini file in local settings/application data/repertierhost (forgot to search system folders)

edited the '2' in the ini file, saved .. still the same lol, not sure where the other configration settings (different profiles) are stored.

luckily the original <default> was still 1 .. so I ended up deleting the other presets and redoing the default and saving it again.
wierd bug..

]]> https://www.soliforum.com/user/30/ 2012-10-28T09:55:00Z https://www.soliforum.com/post/3512/#p3512 <![CDATA[Re: Prints curling up]]> I've had that same trouble where a setting changes back after saving the preset. Try pressing the up/down buttons instead of typing in the value. It's very frustrating.

]]> https://www.soliforum.com/user/51/ 2012-10-28T09:47:58Z https://www.soliforum.com/post/3511/#p3511 <![CDATA[Re: Prints curling up]]> that being said .. I seem to have broken slic3r or found a bug.

I was in slic3r config mucking around, set infill to every 2 layers on 0.3mm layers..
slicing gave me an error in the Log ..
<Slic3r> Maximum infill thickness can't exceed nozzle diameter

fair enough .. but no matter what I try I can't get the damn 'infill every'set back to 1 layer.

hmm, can't find a slic3r.ini .. I'll find out and report back.

]]> https://www.soliforum.com/user/30/ 2012-10-28T09:19:04Z https://www.soliforum.com/post/3509/#p3509 <![CDATA[Re: Prints curling up]]> We're both in oz so maybe one day we'll have one together.

In regards to you ditching pronterface/skeinforge, I've used it for one print ever, and that was just to double check something with my firmware. I'm frustrated seeing people asking questions about how to use it when Repetier-Host with Slic3r (and Skeinforge) is such a vastly superior package.

The sooner it is officially adopted the better.

]]> https://www.soliforum.com/user/51/ 2012-10-28T09:04:14Z https://www.soliforum.com/post/3508/#p3508 <![CDATA[Re: Prints curling up]]> lawsy wrote:
Stoney wrote:

hehe, sorry Ian, what the hell, their is so many people in this community who all deserve so much vredit its amazing smile

Just to be sure you have it, I'm Lawsy. My first name is Michael.

Ian's user name is... IanJohnson.


lol, yeh .. I was apologising to Ian .. not you, my post was not clear.

but mate, you have my sincerest thanks too.

I'd buy you a beer with no issues smile

]]> https://www.soliforum.com/user/30/ 2012-10-28T08:07:07Z https://www.soliforum.com/post/3507/#p3507 <![CDATA[Re: Prints curling up]]> 20mm test cube .. first print, no raft, stuck like the proverbial to the blanket (i did also my first wipe with acetone, perhaps that did the job)

x 20.41mm x y 20.13mm x z 20.25mm ..

i am really impressed, enough that I may just delete skeinforge and pronterface right now, I see no further need for it..

]]> https://www.soliforum.com/user/30/ 2012-10-28T08:04:45Z https://www.soliforum.com/post/3506/#p3506 <![CDATA[Re: Prints curling up]]> Stoney wrote:

hehe, sorry Ian, what the hell, their is so many people in this community who all deserve so much vredit its amazing smile

Just to be sure you have it, I'm Lawsy. My first name is Michael.

Ian's user name is... IanJohnson.

]]> https://www.soliforum.com/user/51/ 2012-10-28T08:01:00Z https://www.soliforum.com/post/3505/#p3505 <![CDATA[Re: Prints curling up]]> hehe, sorry Ian, what the hell, their is so many people in this community who all deserve so much vredit its amazing smile

well, I just installed repetier host, followed Ians setup videos to the letter, wondering why I did not do this 3 days ago.
Only reason I did not try it, I was unable to do the firmware upgrade and thought there was some sort of incomaptibililty with  the stock hardware, seems fine so far..

First print is running at the moment, but it looks freaking awesome, so much more intuitive than skeinforge..
its sticking to the bed, no raft, no corners lifting,
first attempt it had no stick at all .. so just set first layer height to 70%, wow, how easy is that.
filament to 1.72mm, extruded width to 0.42mm ..


I think this is a whole new ball game.

]]> https://www.soliforum.com/user/30/ 2012-10-28T07:50:21Z https://www.soliforum.com/post/3504/#p3504