extruder feed jamming

[Red62]

Hey, so I'm trying to get something printed. My machine was working fine before but now every time it moves onto the infill of Layer 1 it jams. The border is fine, the outline is fine, but then the filament starts to catch on something inside the head and then the feeder is ceased, causing the cog to chew through the filament.
This is starting to piss me off, so I need some help

[LambdaFF]

This is a very limited information to start with... hence the lack of answers so far.

Please come back with a few photos, printer type, slicer software and your print parameters.

A simple test : does this problem happen only on one model or you can repeat it ? Does this happen everywhere on your bed evenly ?

Another thing to check : is the print temperature remaining constant at the requested value ?

Give us the rest I suggested and we'll see.

[curious aardvark]

what he said :-) ^

[CaptainObvious]

The first thing I would check is if the print speed for perimeters and infill are different, maybe your infill speed is higher than what your extruder can push without stripping the filament.
The other thing is the type of infill you are using requires lots of retractions that could grind up the filament.