Printing with .25 nozzle

[bob-hepple 59]

Hi Everyone,,

 

tried to make my first print with .25 nozzle, Im using nGen printing at .10 Layer height with 3 perimeters and 50% infill but my prints are Britle Temp 215 can anyone shine a light were Im going wrong speed is low

[gr5 2,229]

I'm surprised they are brittle.  I would lower the fan.  Listen to it and make sure it sounds like 1/4 as loud.  It also helps to enclose the machine but lowering the fan should be enough.

 

Usually when I use .25 or .15 nozzle I am printing very small things so I also print multiple objects to give one time to cool down (while the other is printing).  But with nGen you don't need so much cooling so I suggest you just lower the fan quite a bit.

[bob-hepple 59]

gr5

 

thanks for the reply that has helped dropping the fan,  but I seem to be getting the odd layer splitting in the print

[Labern 775]

Yeah, I also find nGen quite brittle using the 0.25 nozzle. I would probably increase the temp a bit, Turn off Z-Hop and avoid printed parts when travelling to reduce travel times and keep heat on the part. nGen doesn't really have the best bond to itself which means that the strength between each wall and layer is not hugely strong. Using a 0.25mm nozzle means you have even less strength cos the print lines are so small. 

Keeping the part as warm as possible without affecting your print quality is the best solution. So maybe up the temp and play with retraction, travels and combing to reduce oozing.