Hi,
I’m not quite sure if this is the right group, because this is not an issue while printing …
I’ve one coil PLA (blue) and one ABS (black), lable says by Velleman.
I’m a bit in doubt if ABS is really ABS:
[ul]
[]it does not dissolve in acetone, just getting soft.[/]
[]can be printed with 200°C (for PLA I use 190°C) and the final part looks exactly (apart from the color) like a PLA part. I used the ABS-profile from velleman, just changed bed temperture to 40°C and hot end to 200°C.[/]
[]If I go to 245°C, as written in the ABS profile, the hot end starts smoking! (But that can be PLA residues)[/]
[]It does not smell “chemically” as described by others.[/]
[/ul]
On the other hand
[ul]
[]the filament is more flexible than the PLA filament[/]
[]cutting the filament looks different, PLA is more brittle.[/]
[]Sticking to the bed (painters tape on glass) was a bit worse than with PLA, but no serious problem. [/]
[/ul]
So it looks like the ASB is a bit different form my PLA, but does not fit to all the descriptions on the web. Did I oversee something or is that possible ?
if you use a PLA temperature on ABS, the layers will not stick good to each other, part will be in bad quality, very easy to break it,
the smoke I see very occasionally, for second,
ABS smells a little bit (more than PLA), kind of smell is like other plastic, if you heat it up,
if you put pieces of ABS to aceton, aceton should change the color according to ABS in a while, and the ABS should be melted in some hours. (depends if you shake it or just lay it in)
flexibility and different look is OK.
if you use a PLA temperature on ABS, the layers will not stick good to each other, part will be in bad quality, very easy to break it,
the smoke I see very occasionally, for second,
ABS smells a little bit (more than PLA), kind of smell is like other plastic, if you heat it up,
if you put pieces of ABS to aceton, aceton should change the color according to ABS in a while, and the ABS should be melted in some hours. (depends if you shake it or just lay it in)
flexibility and different look is OK.
probably you re printing with universal material [/quote]
some new results from the unversal material (herafter refered to as [color=#BF00FF]ABS?™[/color]
[ul]
[]heated PLA to 245°C, does not smoke[/]
[]back to [color=#BF00FF]ABS?™[/color], 245°C, no smoke. So maybe it has been some grease on the extruder.[/]
[]printing with PLA at 220°C does not work, poor adhesion[/]
[]printing with [color=#BF00FF]ABS?™[/color] at 190°C does no work, poor adhesion, not liquid enough[/]
[]printing with [color=#BF00FF]ABS?™[/color] at 240°C does fairly work on a heated bed 60°C, Vellman parameters[/]
[]result looks slightly different: PLA shiny, ABS more matt; ABS more flexible, but breaking edge of both similar[/]
[/ul]
So apart from the acetone story (It’s been a week in acetone) it could be ABS (farewell universal material patent ;-). Maybe it’s a contamination or a mixture. I’ll see if I can get a different brand filament.
@gauvain
thanks for the hint
If it’s a mixture, it’s probably not on purpose. Maybe I should try to start from the other end of the spool …
Well maybe later …
@Wrong Way
?? I don’t get the point, that should’nt make a difference the the solubility in acetone
My thinking is that maybe the firmware got corrupted when it was loaded at the factory.
Maybe the firmware is not reporting the correct temp of the hot end.
