ExtremeDullard

Quick update on this problem:

As suggested, I turned on one-wall in the slicer. That eliminated the holes.

However, I also turned on ironing and that seems to have created black smears in the white letters: it looks like black material that got picked up by the white nozzle at the edge of the letters and got dragged across.

I know it's ironing because it's just at the surface and it scratches off easily with the tip of an x-acto knife.

So, I think ironing may not be such a great idea with such small bi-color features. Maybe the smearing is acceptable on the edge of a large features with another color, but those letters are 10mm so it kind of ruins them across the entire width.

Apart from that, there are gaps between the black and the white material on the right-hand edges of the letters. But it only shows under the microscope: they're not really visible, and certainly don't stand out like the black holes right in the middle of the letters like before.

So for the next print, I'll turn off ironing and see how it goes. I think one-wall alone will do nicely.

Thanks for the tips everybody!

They happen when lines meet where the width of the feature isn't an exact multiple of the extruder's width and the printer has trouble filling in the void. Usually they're fairly invisible, but when printing white on black, they stand out like a sore thumb.

I'm wondering if there's a good simple way of avoid this problem in the slicer. The ultimate fix of course is to print a square sheet of white PLA under the white letter, but I'd rather not mess with my model because it's quite complex already.

I just love 3D-printing. Not only is it almost impossible to produce a custom case like this one using tradtional machining (well, not impossible but phenomenally difficult and expensive), I can crank out a complete enclosure with the electronics mounted inside with only a few hours of CAD'ing and printing for a few bucks.

From thought to professional-looking product in less than a day and super-cheap! What a wonderful technology. It never ceases to amaze me 🙂

Yeah it's reset. And now it's rebooting into a Chinese OS.

https://www.comedy.co.uk/online/videos/6443/davestation/

Cool affordable hand with haptic feedback from Psyonic in San Diego, CA.

Here's a video overview of this hand.

Best of all: if you like to tinker, Psyonic put the Ability Hands' API on their Github, so you're not limited to their software: you can do your own thing and control it however you want.