Homebrew PCBs

I was looking at your kits, and I almost bought one. Then you offered to sell me a 4oz bottle of the "special etch resist ink" for $100...
http://www.inksupply.com/product-details.cfm?pn=MISPRO-4-Y



--- In Homebrew_PCBs@yahoogroups.com, Henry Liu <henryjliu@...> wrote:
>
> I sell direct etch resist kits:
> http://www.fullspectrumengineering.com/pcbinkjet.html
> 
> As I sell both products I am familiar with capabilities and UV curable ink
> is a superior solution.  You need to dry the ink which is a somewhat time
> consuming process and UV ink is much harder.  I will show some results when
> I have time to etch.
> 
> HP 45 original ink is pigment based:
> http://h10010.www1.hp.com/wwpc/uk/en/sm/WF06c/A1-12771-64199-69422-69422-3322795-1839940.html
> 
> 
> But there is authorized UV curable inks inside HP 45 carts from other 3rd
> parties.  I can also sell you a Xaar peizoelectric head and controller at
> substantially higher price.
> 
> According to google HP 45 carts start at $1.96 and go up from there:
> http://www.google.com/products?q=hp+45&scoring=p
> 
> The firing pulse generation is under 2us and you need to clock data in/out
> at 5mhz on both the rising and falling edges so FPGA solution is easiest but
> that's included in my package anyway.
> 
> Cheers,
> Henry
> 
> 
> > HP-45 cartridges for $5 each - Ha! You are WRONG. The proper way to deal
> > with HP-45's is buy original (difficult, many fakes), get a dozen or so
> > refills out of the original (original 2x45mal Inktec kit for around $10, but
> > these refill kits are also turning up as fakes). I know, I refilled the
> > likes of Deskjets 850 and 970cxi for ages. HP is removing the HP-45 (real
> > not fake) from my market (SE Asia) on purpose IMHO. Getting very hard to
> > find.
> >
> > David
> >
> >
> > --- In Homebrew_PCBs@yahoogroups.com <Homebrew_PCBs%40yahoogroups.com>,
> > Henry Liu <henryjliu@> wrote:
> > >
> > > Mass market inkjet control was always a goal of these two groups.
> > >
> > > I've developed all the high speed timing/drivers/power to use several of
> > the
> > > HP 45 cartridges.
> > >
> > > Watch the following initial test video:
> > > http://www.youtube.com/watch?v=d13WRJaKWF8
> > >
> > > The HP 45 has 300 nozzles at 600x600dpi that are all fired in 3 stripe
> > > patterns as a demonstration.
> > >
> > > HP 45 cartridges are very interesting for a number of reason:
> > > -low cost, disposable and super cheap (as low as $5) so burning it out
> > just
> > > means you throw it out
> > > -UV curable ink available to print PCBs (I have test results from an UV
> > ink
> > > manufacturer -> this blows away all other pcb methods. Full cure in 6
> > > seconds).
> > > -bulk ink supply using HP C6119A bulk ink cartridge (same interface):
> > > http://www.addrex.com/hp-c6119a-bulk-black-ink-supply-system.aspx
> > > -high resolution 3d printing
> > >
> > > I have an intellectual property license from HP so can fire HP inkjet
> > heads
> > > directly. More importantly I can buy unlimited numbers of cables, printer
> > > stalls and connectors from HP. Sorry can't share the docs due to NDA but
> > I
> > > will offer a kit soon to integrate these designs into your own printer
> > > design. You still need FPGA type timing to get it work but I've wrapped
> > it
> > > into a simple C++ DLL over USB. Right now the interface is simple:
> > > firenozzles(NozzleArray) where NozzleArray has the 300 nozzles (bit
> > packed
> > > into 10x 32bit integers). 1=fire nozzle, 0 = off.
> > >
> > > I'm open to suggestions to a MCU interface. I was thinking high speed
> > 25mhz
> > > SPI mode or can do 3Mbps RS232 or strobed 8bit transfer modes. 300
> > > nozzles*4 colors at 600x600dpi is a LOT of data.
> > >
> > > Still lots of work to do but I do have a cost XY gantry already in
> > > production and will show a complete XY printer shortly.
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >  
> >
> 
> 
> [Non-text portions of this message have been removed]
>