I’m attempting to print a relatively small part (50x200) at high resolution on my K2 in ABS. I’m using eSun ABS+ (dried). I’m using the Crealitysystem preset for 0.08 resolution with a 0.4mm nozzle. And the Generic ABS filament profile. I’ve successfully used this filament for other parts at standard resolution.
I’m running calibration on a preheated bed at print start. After 3 attempts the nozzle partially or fully clogs on the first layer causing an extruded jam.
Is there some adjustment I should be making to the print parameters to avoid this. Or is this just not a workable combo with this printer/nozzle/extruder.
I havent tried that setting for ABS, but how id do it would be.
1st layer calibration print, adjusting the Z offset from 0 upwards in increments, with a slightly hotter nozzle temp & increasing offset until problems arise in order to find the mid point between under and over extrusion. Then do this again with + increasing flow and speed once youve nailed offset, to find how fast you can perform a first layer with that filament/nozzle setting.
If you can’t get a 1st layer calibration test to work with CFS, try external side spool by-passing ptfe completely (how you print TPU), if that fails, you may not be able to use that nozzle/setting combo… with that nozzle.
I find same filament (PETG) that is calibrated to the CFS , running from side spool by passing PTFE recalibrates at 96% flow, showing the drag of my PTFE lengths… this drag can cause problems on high quality nozzle settings…increasing temp a lot and reducing fan usage can help
Edit, ive tried normal ABS on 0.4/0.6/0.8 nozzles using various layer heights, not been willing to sacrifice an 0.2 nozzle to test… ive a spool of Hyper ABS that ive yet to open/use.
Edit 2, i dedicate an 0.4 nozzle to ABS printing, dont put anything else through it… seems to make it last a bit longer…
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Out of interest have you tried printing your part using variable layer height adjustment settings ?
Might be worth a try, that way its not the entire part at 0.8, just the detail parts, works well for high quality vertical curves, then increases layer height for bulk standard portions…
I use this feature a fair bit, as you dont sacrifice detail where you want it, but also dont loose the time for a full print using high quality settings.