@3dsurfr @RocketSled @vladimir.minkov @Sparq Finally back to working on ASA. Most recent run much improved. Parameters used based on all your feedback to date:
- X1C chamber doors etc. all taped off. Printer is located in medium sized repurposed walk-in closet. Closet door kept closed for entire run. Ambient room temperature ~ 75F; Humidity ~20%.
- Preheated bed to 120C for about 2 hours. Chamber temperature rose to 50C.
- At start of print lowered bed temp to 110C with extruder temp set to 250C. Chamber temp held steady at 49-50C for entire 13 hour print.
- After print completed, let everything cool down naturally for about 4 hours.
- Print readily popped off Engineering plate coated with glue stick.
Final result below minus the 5mm brim. Good quality. Just a very minor pull up of plate (~.5mm) at corners. Acceptable to me although would love to get that extra bit to lay flat. There is a minor horizontal “seam” all the way around at the point where the interior floor stops and the outer wall continues. I think this is due to some cooling since the top on the interior is ironed which took a long time.
A couple of questions for next run:
- With other settings unchanged, any possible advantage to raising or lowering extruder temp from 250C?
- Thinking the ironing of the interior floor might be a significant source of differential cooling. Currently using 15% gyroid infill. Upping that percentage and /or changing infill type might possibly retain more heat? Or perhaps change the ironing to complete sooner.
Really appreciate everyone’s input to date. While not perfect this print is major improvement over previous.
