Printing issue - layers
 
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ovidiu.chinan
(@ovidiu-chinan)
Active Member
Printing issue - layers

Hello,

I'm trying to print 1pcs rc3 model face shield and at around 24% of the print the ends of the print release from the heatbed and what you see in the pictures is happening. 

What când I do to avoid this. 

From what I see, the problem appears because the print doest stick.to the heatbed from one point...after which the layers are fubar...

 

Help please

This topic was modified 5 years ago by ovidiu.chinan
Posted : 29/04/2020 12:39 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Printing issue - layers

Good afternoon Ovidiu
what filament are you using, 
How do you prepare the build plate?
What does your first layer look like? 
what temperatures are you using? 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 29/04/2020 1:31 pm
ovidiu.chinan
(@ovidiu-chinan)
Active Member
Topic starter answered:
RE: Printing issue - layers

Prusament ASA

I clean the plate with alcohol and a paper towel.

Temps...the usual (I guess) that come with the settings. 260 for the nozzle and 95 or 90 for the heatbed (I'm not by the printer at the moment).

I assembled the printer this week and I did 5-10 first layer calibrations. I think I got it right. I did a couple of print tests that came on the and card and all went ok. 

I don't have a picture of the first layer but it looked ok. It was sticking to the heatbed until about 20% percent, when the end/tips of the print lifted from the heatbed

 

 

Posted : 29/04/2020 1:56 pm
ovidiu.chinan
(@ovidiu-chinan)
Active Member
Topic starter answered:
RE: Printing issue - layers

Also I did change the setting of the file to asa filament before generating the gcode file. 

The original file downloaded was  for petg filament.

This post was modified 5 years ago by ovidiu.chinan
Posted : 29/04/2020 2:46 pm
lee.g
(@lee-g)
Estimable Member
RE: Printing issue - layers

Are you printing inside an enclosure.  ASA likes an enclosure as it is prone to warping.

Posted : 29/04/2020 2:56 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Printing issue - layers

Are you using 3x3  mesh bed levelling or 7x7 mesh bed levelling?   I would recommend using 7x7 mesh bed levelling, which is available through the LCD Menu
 regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 29/04/2020 3:35 pm
ovidiu.chinan
(@ovidiu-chinan)
Active Member
Topic starter answered:
RE: Printing issue - layers

@lee-g

Yes. inside an office. It's around 19° C. Inside.

Posted : 29/04/2020 4:47 pm
ovidiu.chinan
(@ovidiu-chinan)
Active Member
Topic starter answered:
RE: Printing issue - layers

@joantabb

Thanks a lot for the tip. I'll try tomorrow and come back with an update. 

Regards,

Ovi

Posted : 29/04/2020 5:37 pm
lee.g
(@lee-g)
Estimable Member
RE: Printing issue - layers
Posted by: @ovidiu-chinan

@lee-g

Yes. inside an office. It's around 19° C. Inside.

Do you mean its in an enclosure I.E a custom made box for the printer and then the printer and enclosure are inside an office that is kept at 19° C.

If that is the case then that is a good start and will give you the best chance to use ASA successfully.  If your bed is meticulously clean and you first layer is dialled in well you should be good.  When printing ASA never open the enclosure door.  You must keep all drafts and cool air away from your print.

I run my bed at 110° C for ASA which will certainly help this print if you only have your bed at 90-95.  I would even consider going higher because of the footprint of this part.

Posted : 29/04/2020 6:14 pm
ovidiu.chinan
(@ovidiu-chinan)
Active Member
Topic starter answered:
RE: Printing issue - layers

@lee-g

Oh. Now I see what you mean. Sorry, i am new arround here 🙂

No, its not in an enclosure. Its on a working stand. Got it. No draft or cool air and 110 or higher temp for heatbed. Ill try that.

Thanks a lot 🙂

Posted : 29/04/2020 6:33 pm
ovidiu.chinan
(@ovidiu-chinan)
Active Member
Topic starter answered:
RE: Printing issue - layers

Hello again.

So I did the fixes you suggested. now its running on 7x7 mesh bed leveling. heated bed at 115. running the same file and its still warping the ends of the print. 

No draftor cool air in the room. I will change filament type and try now with PLA.

I tried another type of face shield and its not warping. Same material same temp settings. 

Im cleaning the surface with 60% alcohol 1-2 times before each print. 

 

Posted : 30/04/2020 11:20 am
ovidiu.chinan
(@ovidiu-chinan)
Active Member
Topic starter answered:
RE: Printing issue - layers

Its printing now ok with PLA. Same design. No warping. Bed temp 90 degrees C. Its at 40% now and looks great. 

Apparetly with ASA has some issues. Dont know why yet. I have a few rolls of ASA prusament, hope to fix this issue so I can use the material to print face shields. 

 

Posted : 30/04/2020 12:51 pm
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