I have a completely new effect printing an object for a second time. I have a new BuildTak sheet and I printed the object once successfully. I’m now pritning with a differnt colour.
It looks as though the nozzle ‘sank’ into the first layer but just in one area, I didn’t see this effect on the first print, although I wasn’t watching layer 1. I couldn’t see anything on the underside after printing.
Layer 2 has printed correctly now, so I’ll have to wait until it’s finished to see what it looks like underneath.
Both prints PLA. I increased flow rate & first layer width (S3D) with this print as the previous print didn’t look so good. It still doesn’t look perfect.
will do, I used the soapy water trick when applying it and I’m fairly certain there were no bubbles, but stranger things have happened…(like ordering & using ABS instead of PLA).
I wonder if I set the nozzle a bit too low. I notice now after a couple of hours that the nozzle seems to be covered in a thin layer of filamant and there a quite a few thin filament strings around, not attached to anything, around 2-3 cm long
Maybe I need to give the nozzle a check & clean too
I had a lot of trouble getting the object off the BuildTak - nozzle too low?
After removing, the object wall split around layer 36, also the 2 pegs
There doesn’t seem to be any or much infill in the walls, maybe they are too thin, but with grey filamanet the sides were strong.
And there was a bubble in the BuildTack around where I saw the strange efect in layer 1, I’m not even sure that it may have had soapy water in it…
The object did split because there is an “empty” layer : it happens when the filament feed stops or slows down for some reason (usually when the filament is entangled on the spool). So there is one layer with almost no filament and it breaks.
The infill depends on the wall thickness (of the object and defined in the print parameters) and of course on the infill parameter. Usually I’m using 40% infill with thin walls (<=2 mm) and a layer thickness of 0.6.
As for the temperature, it can vary a bit with the color. You only can find the right one on a try and error basis. Sometimes, you also need to modify the flow as the fluidity of the filament is different from color to color.
Thanks Raby,
quite a lot to investigate. I have redesigned the object with thicker walls anyway and I think it’s time to clean the nozzle. I had noticed the odd zit that looked burnt on recent prints, probably slightly clogged.
I’ve been using the same temperature (190) for all colours so far, red, blue, yellow, trasnparent, but not really seen much difference
