Welcome! Log In Create A New Profile

Printer issue or Material issue?

Posted by Make_3D

Make_3D

Printer issue or Material issue?
September 26, 2015 07:41PM

Registered: 9 years ago
Posts: 44

Hi everyone,

I am trying to print this dragon on my newly built delta printer but the quality seems way off, the base prints fine but the belly / overhangs are terrible. Now i usually print with ABS and run on marlin firmware however this delta runs on repetier firmware and I am printing in PLA (I haven't printed in PLA before).

So my question is this, why is this print so bad? printer? settings? material?

I have already printed this dragon in abs on my i3 and the quality on that was much better.

I am running PLA at 200 degrees, no heatbed, default speed settings in slic3r, cooling fan enabled.

Thanks in advance

Reply Quote

Attachments:
open | download - IMG-20150927-WA0008.jpg (214.7 KB)
open | download - IMG-20150927-WA0009.jpg (202 KB)
open | download - IMG-20150927-WA0010.jpg (203.1 KB)
open | download - IMG-20150927-WA0011.jpg (179.1 KB)
open | download - IMG-20150927-WA0012.jpg (277.6 KB)
open | download - IMG-20150927-WA0013.jpg (196 KB)

SlowFoot

Re: Printer issue or Material issue?
September 27, 2015 02:42AM

Registered: 8 years ago
Posts: 150

A bit too hot is my guess, do a heat calibration and see how low you can go. You can also try rotating the dragon on the bed so the fan cools the belly better but that will probably just move the problem.

Reply Quote

o_lampe

Re: Printer issue or Material issue?
September 27, 2015 03:12AM

Registered: 8 years ago
Posts: 5,232

Overhang quality also depends on nozzle width/layer height ratio. For a 0.4mm nozzle you´d choose less than 0.2mm layer height.
And lower temperature like already mentioned.
-Olaf
PS: I´d start with smaller/simpler parts when I use PLA for the first time with an unknown slicer....there are lots of calibration/test objects on thingiverse

Edited 1 time(s). Last edit at 09/27/2015 03:14AM by o_lampe.

Reply Quote

Make_3D

Re: Printer issue or Material issue?
September 28, 2015 06:20AM

Registered: 9 years ago
Posts: 44

Thanks for the replies,

I think it a heat issue, I can print cubes / cylinders without issue but anything with detail or overhangs have problems. I think i may have the wrong thermistor selected in repetier firmware, so far i have lowered the temperature to 165 degress and it still prints (the print quality is improving with the lower temperatures). The thermistor in my hotend is a 100K NTC B 3950 but that one isnt in the list of thermistors in the firmware.