1 Topic by josh.aeauto

  • josh.aeauto
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Topic: PC-ABS Layer Delamination?

I did a review on PC-ABS a while back, and since the review, I haven't printed much with it up until now. I notice that it has a serious layer delamination problem. I didn't really expect this since PC has great layer adhesion, and ABS isn't too bad. But this is really bad. It's so bad that it's totally unusable. Entire layers will separate cleanly with very little effort.

Do you guys have any suggestions? Has anyone else had a problem like this? Should I try raising the temperature some?

Thanks in advance

-Prusa i3 MK2s
-Airwolf HD2x w/ E3D v6 + Volcano
-Custom built Solidoodle 3 clone w/ E3D v6+ Volcano    -Solidoodle Press w/ E3D Lite6
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2 Reply by elmoret

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Re: PC-ABS Layer Delamination?

Generally the first thing to try to improve layer adhesion is hotend temperature.

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend

3 Reply by josh.aeauto

  • josh.aeauto
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Re: PC-ABS Layer Delamination?

Right, I will try bumping it up to 290. I noted before that if I increased the temperature above 285, the parts had a tendency to stay soft and mess the print up. Maybe that's a speed issue.

-Prusa i3 MK2s
-Airwolf HD2x w/ E3D v6 + Volcano
-Custom built Solidoodle 3 clone w/ E3D v6+ Volcano    -Solidoodle Press w/ E3D Lite6
Filastruder #1577

4 Reply by elmoret

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Re: PC-ABS Layer Delamination?

Speed and/or cooling, you may need a part fan.

Filastruder - the robust, inexpensive filament extruder
E3Dv6 All Metal Hotend - the premier 3D printing hotend

5 Reply by aleksi

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Re: PC-ABS Layer Delamination?

Experimenting with temp & cooling and you'll find out what is good smile
It also depends on the speed, if you are going fast you need higher temps to make sure the layer below gets partially melted and hence layers stick together.

I just tried running nylon at a very low temp someone suggested to limit warp, 230-240C or so, huge delamination issues and huge warp.
Temp to 265C and cooling fan on -> No delamination, nominal warp.

This was on Makerfarm i3 which is very slow (quality suffers very fast with speed), but on my heavily modified Prusa V1 i ran 290-300C @ 150-180mm/s print speeds and high acceleration.

6 Reply by 3dtech (edited by 3dtech 2017-02-24 09:53:28)

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Re: PC-ABS Layer Delamination?

Yes, I am aware of the maximum operating temperature of the thermistor. In fact, when heating the nozzle up, the temperature overshoots by 5-8°C momentarily. It didn't seem to affect the thermistor, though.  3d printin - Polycarbonate (PC)

http://vexmatech.com/images/img-m/sla-fdm/pc9.jpg

@ShadowRam: I have a 150W PTC heater designed to be used with small fans. Maybe finally mounting this thing on my printer might help...The X carriage is crammed full already, though and my PSU only supports up to 320W, so that's going to be rather tight.

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