Homebrew PCBs

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@yahoo.com>
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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