switched to .5mm nozzle and now prints are horrible
Posted: November 26th, 2017, 7:30 pm
I recently switched from .4mm to .5mm nozzle t get faster prints. Im using armadillo tpu 75d 1.75mm. Im having a terrible time getting the initial layers to stick to the bed. This was not an issue before. Im using blue tape and hair spray. At a temp of 217-222 the initial layers just do not stick at all. The brim starts peeling right from the get go. At higher temps, 225-230, the initial layers stick, but quality is horrible very blobby. Also, it eventually comes un stuck anyway. Also, the bottom skin is very patchy with many small openings. I have tried making initial layer .2mm, or .3mm, no change.
Before, with .4mm nozzle, i was having good prints at 220 deg, but slow. im making non detailed simple shapes so would like to print faster. im not sure how to increase extrusion rate. is that whats needed?
In the pics, the holes at the ends are grossly under filled. They should be 5mm diameter, but are just a random mess. i slowed down print speed to try and make those fill in better, along with initial layer fill, but no change. Its worse at 50mm per second, but still horrible at 30mm per second.
Is there some way to make the extruder feed more material? I think thats the issue. In cura i have extrusion rate at 100%
Any suggestions?
Before, with .4mm nozzle, i was having good prints at 220 deg, but slow. im making non detailed simple shapes so would like to print faster. im not sure how to increase extrusion rate. is that whats needed?
In the pics, the holes at the ends are grossly under filled. They should be 5mm diameter, but are just a random mess. i slowed down print speed to try and make those fill in better, along with initial layer fill, but no change. Its worse at 50mm per second, but still horrible at 30mm per second.
Is there some way to make the extruder feed more material? I think thats the issue. In cura i have extrusion rate at 100%
Any suggestions?