Homebrew PCBs

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]

HP-45 cartridges are water-based. They dry-out and are notorious for difficult recovery/refill. Why UV ink and not direct etch-resist (Mr. Liu I'm sure you know what I mean)? Why is an FPGA required to do what you want (you provide no substantive details), these cartridges have been driven by even the slowest of MCU's in past projects.

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, 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]
>

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]

This is interesting, but what's the benefit of driving the jet head directly
from an MCU?  As I understand it, the real challenge is finding a suitable
way to get the ink to resist the etchant.  If you have a process that allows
you to print an etchable design from an inkjet head, than it seems like it
would be easier to leave the printer fully assembled, since it does a much
better job of printing a pattern than one could do manually.

This being said, I can think of some really cool applications for what
you've done here - I just don't think your work is helpful for PCB
fabrication.

-Andrew

On Sat, May 8, 2010 at 5:43 PM, 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]

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]
>