What to do when the extruder stepper gags

I began to print a larger object. The extruder would start to skip steps at so time into the print. I found as the temp went up it failed earlier and as the speed went down it failed earlier. I posited that the filament was probably flowing out of the print head faster than the feed speed causing too much build up of plastic.

I brought the speed way up and now was printing perfectly, with the exception of some ringing in the print.

So if you have the problem I would take the temp down or the speed up.

 

I am making up some non critical parts. I have been using old PLA of various manufactures just to get rid of it. I use the Partsbuilt system board. I found this one roll that would not complete a print. In looking at the filament after the extruder stepper began dropping steps I could not find anything wrong. The extru8der stepper was running pretty cool. I began bringing up the current until the stepper hit 120F during print. I took the extruder temp up to 235C. Now it worked.