Marvin Printing Issues?

[Dimesions]

Hey guys,

I have been tweaking my settings trying to get the perfect Marvin. At the moment I am printing at 175C with a board temp of 40C.

.1 layer height and my speeds are quite slow.

This is the closest I have gotten to a good print, anyone have any hints to why they are coming out like this?

[Kurt_7]

Ah - Ur leaving out some Very Critical Info! What kind of plastic? If PLA - U should be at more like 195C for Extruder. Bed can be around 50C. I get just fine results for almost all prints of PLA with these settings. And, I use speeds of 70 for print & 110 for travel.

[Dano]

Hi Stephen,

I printed my marvin on a makerbot rep 2 with the following settings:

Infill 16%

2 Shells

Layer height 0.20mm

Temp 225C

Feed 60mm/s

Travel 120mm/s

(No heated bed)

I’m not sure how applicable these settings are to your printer, but I’ve found (rather paradoxically) that increasing the layer height sometimes results in cleaner prints, as it gives the nozzle tip a little more space to move without roughing up the layer below it (at least, that’s my best guess). Hope this helps!

[3D_DA_VINCI]

Hello To me it looks like cleaning or replacing the extruder head tip You might have tiny tiny bits of plastic dried and disrupting the extruding process!I would take off brass tip clean in acetone While u are doing that heat up the extruder and remove the pla and then clean the extruder cylinder after cleaning the extruder tip I would say a day in acetone wash off and reassemble and you’ll see a better quality print DaVinci Labs

[Daniel_71]

Could be a combo problem

The Filament ABS/PLA is it from a crappy manufacture, this Red seems a bit wishy/washy, could just be bad batch of plastic.

Another thing maybe, from seeing the bubbles and goop, your thermistor may not be working correctly. Check the temp, you maybe getting major swings in heat to compensate for bad thermal readings from loose, poorly placed or bad wiring.

The speed is completely secondary until you know that the above is verified.

[3DPrintedArt]

It seems like a cooling issue to me. Make sure your fans are on full power the whole way through.

Good luck,

3D Printed Art

[Arnoldas]

I would definitely increase the temperature. Have you already tried anything else? Most often the issues lie on extruder temperature and printing speeds. Just try playing with those (I’d suggest trying the extremes (very high temp and fast speed, etc.) to test your printer and the filament if you really want to learn your printer )

[gabriela3d]

Did the advises below work, @monkeysare? How’s Marvin looking now?

[Dimesions]

I installed a fan and ran it the for the duration of the print, my filament ran out halfway through

It is looking a lot better though!