To get rid of the zits (not sure of what zippers are), is really just slowing the print speed down.
The outline speed of 2500mm/s seems to work well for ABS. You’ll need to calculate the underspeed percentage to achieve that… so if printing default speed of 5400mm/s use 46%, and 4200mm/s would be 60%. The default print speed also comes in play for solid infills and inside perimeters, lowering will provide the most desirable finishes. Just need the patience for the longer print durations.
I attached the following FFF to a different thread, but thought I’d provide here also. It capitalizes on the flexibility of the “Autoconfigure Quality/Material” dropdowns for varying print situation with the .5mm and ABS (I didn’t touch the profiles for PLA, Nylon…)
Here are the basic changes to the FFF:
- For color, the extrusion multiplier is changed
- For speed, maintain an outline underspeed of 2500 for default speeds of 4200, 4800 and 5400
- Consistent cooling parameters at set heights, which is optimal for my print environment for ABS… YMMV.
- Supports are modifed to be very sparse with a dense upper and lower boundary for easy removal
- Brim/Skirt is modified also for my print environment.
- Basic premise behind the various profiles:
- Achieve a consistent outer shell (top/bottom layers and perimeter)
- Vary heat bed with an initial of 110C to about 3mm, then 100C and eventually to 90C
- Increased overlap from default to 35%, which also affected a decrease in the extrusion multiplier
Note check, the Z-offset GCode… I may have a default for my printer of .2 which may be too close for other printers. It may make your ABS prints stick too well to the PEI. I like to lightly coat the print area with lithium grease, and wipe off every so often. This lets me print closer to the bed, creating a smooth bottom to the projects… and still letting my remove.
Sorry if this is a bit over the top… but I thought I’d share what I’ve experimented with in hopes to spark other suggestions.
TAZ5-N5_20151219_00.txt (43.9 KB)