Cbass , thanks I would have to study those Augers to understand the mechanism better, I'd prefer to make my own pump cos of cost.
the Idea I've been toying with is along the lines of what they call 'window clings' thats using window paint see piccys below, the out line (which will perhaps be all i want is made from a black line usually.
the Glue they use seems to be based on PVA type of wood glue (the white stuff!!) when it is semi-dry 1-2 hrs, the coloured infilling is added , thats of a runnier viscosity, flexable and semi translucent - its all done on a plastic backing and the 'cling' (rather like a sticker) is peeled off the backing and will self-stick on glass.
It is still All plans on the 'back burner' as they say.
chances are that I will use my cnc router for all kinds of other purposes lol!!
i'm pretty keen also to make a tangential knife
It would probably be OTT for me to use a stepper driven auger partly cos of running out of controlable axis, I'm using two steppers on my x axis so thats 4 axis spoken for - a rotary exta axis would almost certainly be one of my future projects.
so anyhow if say a small stepper - printer type can be fairly easily driven by a simplish electronic drive all I'd hopefully have to do would be turn it on & off? driving it at a pre-set speed? ...
whey-hey boss mans says I can go in to work tomorrow and m/c parts for my router (on a days holiday) so :banana: I'm gonna fly me mill and rip-into a few parts!!
piccys from
http://www.windowbutterflies.citymak...lyGallery.html
(site nothing to do with me!)