Hi Joseph,
Thanks a lot. It is not a modified Epson printer, I'm only using X-axis and head of Epson CX4200, remaining electronics and mechanics are custom made. I've used ATSAM7S128 as a microcontroller but you don't need to use it. It does not require CPU speed. All time critical work is done by fpga which is an Altera Cyclone 2 (144pin ones).
Cheers,
Volkan
--- On Mon, 7/21/08, gsi11135 <gsi11135@...> wrote:
From: gsi11135 <gsi11135@...>
Subject: [Homebrew_PCBs] Re: Homemade flatbed inkjet pcb printer
To: Homebrew_PCBs@yahoogroups.com
Date: Monday, July 21, 2008, 4:32 PM
Volkan,
Again, congrats on your success. Excuse the rudimentary questions
that are to follow. Please let me know if something has previously
been mentioned/covered in the forums.
I would like to ask how much of the original printer is remaining
after all of your customizations? :)
Is the microcontroller you mention a descendant of your previously
posted design using the MPS430 form TI?
http://techref. massmind. org/techref/ pcb/etch/ cx4200-vs. htm
That's all the q's I have for now...more will come!
Thanks for sharing!
Joseph
--- In Homebrew_PCBs@ yahoogroups. com, "v_sahin" <v_sahin@... > wrote:
>
> Hi All,
> I spent couple of months(~4 months) to design my own flat bed inkjet
> printer and finally I could get some printouts. It is based on Epson
> inkjet head and X-axis mechanics. I designed required drive
> electronics, head drive signals, servo control, frame buffer and
micro
> controller to communicate and manage the circuit. On PC side I
> developed RIP (raster Image Processor) that is used to convert bmp
> image to the printers frame buffer format and interface program to
> control the printer. In this design all time critical jobs are done
by
> fpga. Microcontroller supports minimum basic commands such as x/y
> positioning, servo control, frame buffer download, piezo drive
> waveform download and activate inkjet firing, it is also responsible
> to do USB interface. The remaining control is done by the control
> program running on PC side.
> I did only a few experiments and saw that 4/4 (trace width / space)
is
> possible to do if I can do uniform etching ( under etching is also
an
> issue).
> I'll try to upload printed image and original bmp image used during
> printing. As you'll see original image is perfect. Later I'll do
some
> performance tests and try to post the results. This printer can do
> 720x720 dpi and images that I'll upload are printed at that
resolution.
> Uploaded images will be under
>
http://tech. groups.yahoo. com/group/ Homebrew_ PCBs/files/ Epson_inkjet_ Vo
lkan/
>
> Note: I don't know whether the details of the design is an off topic
> or not for this group. I need feedback from Steve.
>
> Cheers,
> Volkan
>
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