The problem with that one is it needs framed stencils, which are rather more expensive than unframed ones. PCBtrain
are the cheapest I've found in the UK for stainless stencils, although PCB-Pool
offer free stainless stencils with some of their services.
For small qtys, plastic stencils from Smtstencil
are fine - I think they recently improved their laser to get useable stencils for 0.5mm QFPs - not tried the new ones but did use some a while ago which were just about useable.
Of course as London Hackspace's resident laser cutter ninja, Sol you should be able to cut plastic ones yourself!
For 1-off jobs you can improvise a stencil holder pretty easily with a few PCB scraps and sticky tape, but for multiples a proper printer that can tension the stencils is very worthwhile. I use the Eurocircuits EC Stencil-Mate
, which is pretty good, and although quite expensive, it's the cheapest one I know of that can do proper tensioning of unframed stencils.
I think there is scope for someone to make a much more sensible-priced printer for unframed stencils - I thought maybe using something like 3.2mm PCB material for the structure as it is readily machinable accurately by PCB fab places.