Ok, here is my take on the new tile engraving method.
I have seen people having trouble getting the mix right and having problems keeping it mixed evenly.
I thought about what already has titanium dioxide in it. PAINT! Why don’t we use it and why is it never really black??
We don’t use it because it is toxic and cleanup is even worse. In the winter, you sure are not going to do any of that in a closed area. Shop or house. And I think the TI02 content is to low.
So, here is my new method that is kind of close to Ron’s but not really, sort of.
Pour 100ml of acrylic craft paint, (cheap at any dollar store or walmart) into a container after mixing very well. Non toxic and cleans up very easy with water
Then in another container put in 25ml water
Now mix in 2 1/4 teaspoons (us) titanium dioxide and mix very well.
While stirring the paint, slowly add the water and TI02 mix.
after that I used a 3D printed mini paint mixer from thingiverse to mix very well.
I use a 1 inch foam brush and it flows out and smoothes the thicker areas.
I have not tried an air brush yet, but it would have to be thinned out with water.
On my first try with that mixture, I got a nice black. May have to turn the power down a bit.
10w diode I used 1500/70. Probably try 1500/55 or 60 next one.
My mini paint mixer for a cordless drill.