I've always printed one of those multifunction temp towers, that has holes and bridges etc and then set the temp to whatever looks the best and feels the strongest.
I recently replaced my hotend and upgraded to direct extrusion, and was surprised to see that 180° was producing the best results and didn't snap like the hotter temps. However, I have since had issues with poor adhesion and prints getting a couple of hours in and then ending up with spaghetti all over the top of them.
I've increased the temp to 210° and set the retraction to 1.5mm @35mm/sec (max recommended). Layer height 0.2mm, layer width 0.4mm. Print speed 50mm/sec. First layer 150% width and 12.5mm/sec. Bed temp is 60° but stringing is an issue. I feel like I need to focus on one setting at a time but unsure which one to start with. I'm pretty happy with my first layer.
When changing a specific setting, is there any particular calibration print that you like to use? I see hundreds on Thingiverse but have no idea is Bob's is better than Joe', or if Sue's wins hands down!
Teach me oh wise ones…