Thanks for your expert help Mick 
Thanks again Mick, really appreciate it, you too Niko
Well, chuffed with this, now added the funnel and its operating at 0.1mm
I have also checked calibration using syringe and its spot on at 4.9ml
I have also added a separate pouch for the heater now and that works fine for the 12v 5w bulb
but it looks like I need at least a 12v 1 to 2amp psu to run the 16w bulb thanks guys…
Finnished product
Nice job Bashy!