Homebrew PCBs

Thanks for the info, everyone!  This is a learning/hobby project for 
me that will hopefully result in a capable laminator.  I considered 
buying a laminator, but decided I might have more entertainment 
building one.

I will use 110V on the fuser, ditch the microcontroller (at least for 
now -- I may add one in later for temperature readout only :), and go 
with a hand crank.  I do have a stepper and driver with the L297/L298 
combo, and will add it in after I get the manual version working.

Thanks again!

Billy Byler

PS - Esteban, there is no need to apologize for your English.  It is 
very understandable.  It is MUCH better than my Spanish :)


--- In Homebrew_PCBs@yahoogroups.com, Esteban Arias <earias@v...> 
wrote:
> I have the same configuration with a HP 4L fuser and bipolar 
stepper motor.
> 
> I supply 220v to the fuser. We have 220v in my country. In the 
manual 
> service of the printer talk of two type of fuser for 110v and 220v.
> 
> For driver the fuser I used the same pieces of the board of the 
printer: 
> triac, optocoupler, coil, transistor and resistor. Stefan Trethan 
send to 
> my the circuit for driver the fuser and this use the same 
thermistor inside 
> the unit.
> 
> I buid a circuit for move the bipolar stepper motor with a PIC and 
a L298.
> 
> Greetings from Chile
> (sorry by my english)
> 
> Esteban Arias
> earias@v...