Homebrew PCBs

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
>