When printing parts with internal channels it can be quite challenging to remove powder from inside the channels.
For example the diamater of the channels in the part below is 8mm and has sharp bends
With blasting the media reaches unitl the first bend but won’t clean the channel behind.
In machinebuilding often channels are printed for compressed air, cables etc. 3D printing is the perfect solution.
It would be nice when you can select the surface of a channel in PreForm and select for example ‘print without armor’.