Printing with PA-CF has these common problems:
The state of AMS desiccant:
When printing PA - CF, do not use nozzles with a diameter of 0.2 mm, otherwise the probability of clogging will be very high. When the diameter is increased from 0.4 mm to 0.6 mm and then to 0.8 mm, the printing fineness decreases in turn, but the clogging probability also decreases in order, so the 0.6 mm nozzle is recommended as the first choice. Before using this material, it is recommended to set the nozzle temperature to 280 °C, and then use an Allen key and a needle to clean the inside of the nozzle to reduce the risk of clogging during the printing process.
Do the same if the nozzle gets clogged during printing, and make sure the inside of the nozzle is clean before the next printing. If the nozzle is clogged, please refer to this wiki to clean it.
When the time of printing each layer is too long, PA - CF's Z direction bonding will get weak and the small models will be no longer strong(the previous layer has been over-cooled). So, when you need to print many small models, you should assemble them into different groups and print by object(default setting is by layer), and maybe on different plates, rather than put them on the same plate and print by layer.