The stems i designed are simple tubes with internal diameter of 2.1mm , wall thickness is 1.1mm. The tube has printed correctly. It appears to have a hole running all the way through (I can drill to the length of the bit , and the material removed was in powder form).
After a few different attempt im still unsuccessful in removing the powder deeper within the tube.
My question is :
What is the minimum internal diameter for not only printing a tube but being able to clear it with ease?
Since SLS parts have a somewhat hydrophobic effect would bathing in something like Isopropanol help loosen the powder more?
Oh i got a new camera, and took this photo ..... shame to waste it
I tried compressed air with no luck.......that said if i had a finer nozzle on the air gun (something similar to a can of compressed air or a WD40), lowered the PSI and tried that way it may work. Will give it a go.
Since i havent figured out the stems I used the Shapeways box to hold the fiber optics in place and block any unwanted light.....worked surprisingly well