Tall & Thin! (now with bed stick!)

[glassrod85]

Yay - seem to have resolved most of my bed adhesion/curling issues with ABS on small footprint parts. Was working on printing a bracelet for my younger sister.

Here is what helped me with ABS SeeMeCNC Arctic White 1.63mm

• Print 4-5 skirt layers to ensure nozzle primed
• Move skirt 0.3mm away from body to provide a air shield/slow cooling (couldn't have touching - delicate animal finger parts broke when i tried to remove)
• raise bed temp to 90C
• start bed temp drop to 50C after first 3-5 layers
• Aquenet hairspray applied very thickly (liquid sheet allowed to dry until tacky [1-2hr] away from printer, if you put on domed onyx bed too soon it will flow off corners and try to get at your printer components.... then heat up to complete dry. (recalibrate z0 when you do this) So far I am on like my 10th print on same bed with no signs of needing to re-apply one layer hair spray yet
• reduce infill from 80% to 25% when possible

[img]http://i.imgur.com/7tfWSwsl.jpg?1[/img]
[img]http://i.imgur.com/swt5RTVl.jpg?1[/img]

As you can see I've run into another problem:
https://www.simplify3d.com/support/prin ... s-and-zits
Any suggestions on retraction settings to try? I've tried a few retractions/extrusion settings but haven't found good ones yet. I seem to leak too much on motion. Tried lower print head temp 5C as well which helped a little. (225C now)

The biggest problems seem to be when it has to cross large open distances as illustrated below:
[img]http://i.imgur.com/H7ISn1R.jpg[/img]

[glassrod85]

Also, is there any way to pull up the settings used on a particular print? Yesterday i had this gecko that printed without blobs/zits. I can view it in print history but I cant find anything useful there. I can remember a few things done differently (lower print speed for instance) but a lot of the other things I've changed over last day or two (wipe on retract, retraction distance, etc) I can't remember exactly how much i changed them. Would be nice to reset to this guy's mode and change one thing at a time.

[img]http://i.imgur.com/uuV4JEfl.jpg?1[/img]

[IMBoring25]

If you still have the gcode, Slicer comments the parameters at the end. I can't speak to other slicers.

[Windshadow]

have a hand written notebook next to your printer and keep a written log each time you change settings....

one of the most useful tools I have as learn to use this machine

[glassrod85]

yep, good idea. makes me think I'm at work too much though (lab notebooks)

Tried to load slicer, it has some interesting settings that matterslice doesn't have I wanted to play with. Sadly as soon as i pressed print it crashed the hot end into the plate and dragged it way way off center of the part. No idea what setting needs fixing there but swapped back to matterslice and same print started fine (also took my print time from 13hr to 30hr, weird)

I fixed a good chunk of the zits by getting rid of wipe and drastically reducing the minimum mm extruded required for a retract. I think on a small thin part like that it wasn't hitting the minimum before crossing the gap. Not 100% there yet but progress. I think I may have to update my extrusion settings as well. Remeasured my ABS diameter after 40meters used and have a good 7% change from the first few meters. Pretty annoying.

[barry99705]

yep, good idea. makes me think I'm at work too much though (lab notebooks)

Tried to load slicer, it has some interesting settings that matterslice doesn't have I wanted to play with. Sadly as soon as i pressed print it crashed the hot end into the plate and dragged it way way off center of the part. No idea what setting needs fixing there but swapped back to matterslice and same print started fine (also took my print time from 13hr to 30hr, weird)

I fixed a good chunk of the zits by getting rid of wipe and drastically reducing the minimum mm extruded required for a retract. I think on a small thin part like that it wasn't hitting the minimum before crossing the gap. Not 100% there yet but progress. I think I may have to update my extrusion settings as well. Remeasured my ABS diameter after 40meters used and have a good 7% change from the first few meters. Pretty annoying.

Make sure your printer dimensions are the same between the two.