Hi everybody I am back again.
Sorry I can not write for a while. But the news are good. I have finished the control board Here its features:
atmega8 and arduino code (standalone no PC connection)
LCD (to read temperature values)
two trim-pots (to set two separate temperature value one for nozzle one for build platform)
one thermocouple input
two thermistor input
two relay output
two power transistor output
With this board you can easly convert your desktop cnc to a 3D printer.
Here is a picture of the board.
I will prepare a web side to tell people how to convert their cnc to a 3D printer. All the software (including modified skeinforge) and the hardware as a kit will be there.
Please e-mail me if you interested in buying this board firstname.lastname@example.org
The first group will purches the board with a compatitive price. I will mass produce according to the number of people willing to buy the board.