I have a monoprice printer, works great. .4mm nozzle. I bought a number of PLA solid colors and they all print reliably. I also bought 2 rolls of PLA translucent colors, and I have lots of trouble printing with them. What I eventually noticed was that when the translucent filaments extrude, they come out in a noticeably thinner stream.
Not sure why, I've tried increasing the hot end temperature and printing slower, but nothing seems to help. The effect seems to be that not enough filament comes out from the nozzle for the speed the head is printing at.
I use cura for the slicer, and I've tried changing the filament flow percentage and I've tried slowing down the print speed. Nothing seems to help, the nozzle ends up dragging the recently extruded filament around the bed until it all comes off.
Has anybody else seen this, where translucent filament extrudes thinner than solid colors? Any suggestions what to try to make it stick and print reliably?
In cura (if you are not in the quick print mode) you can dine the diameter of your filament. Setting the filament diameter to a smaller value will give you more plastic coming out of the nozzle. You can also set the flow percentage to more than 100%
You should also try to use a skirt. Some nozzles need some time until the flow is like it should be.
Another reason for this might be that the distance between bed and nozzle is too high. Try to level your bed so that the distance is less than before.
If all this doesn't work then it will at lest give you new ideas of where to look.