"
colt.boyd@..." <
colt.boyd@...> writes:
> I think I have the same model. Would you mind sharing what temps
> have worked best for you at the default speed?
I've run exactly one board through it so far. I ran it at 240F
because that's what the film said to run it at. I did this to the
laminator because the default 320F melted the film rather than just
stick it to the board.
I might try toner transfer again, now that I can crank the heat up,
but I don't know what temp is best for my printers. I have an old
laserjet 4p and a new colorjet 2550N. Hmmm... I have some semigloss
photo paper here to try, too :-)
> Additionally, do you mind sharing any info on how your made your
> digital temp control?
It's just an MCU with an SPI-based thermocouple chip, LCD, a variable
resistor, and a power module:
http://www.delorie.com/electronics/laminator/laminator.pdfThere's six extra I/O connections; I used two for pushbuttons on the
front panel. One switches F/C, the other cycles through display
modes. The displays tells me actual/target temp, runtime,
time-on-temperature, and duty cycle.
The internal wiring of the GBC-9 is just right for this. Remove the
temperature switch (small round metal thing on top of the rollers) and
the wires leading from it. The two wire nuts those connect to are two
of the connections you need; the other wire nut is the other one -
it's the wire from the power switch, I think.
LINE goes to the side of the sensor that connects to the motor.
NEUTRAL goes to the other side of the motor. HEATER goes to the side
of the sensor that goes to the headers.
Warning - if you get this hookup wrong, something in your circuit will
go bang. Stand back when you first plug it in, in case it does. Be
paranoid! Being otherwise could be fatal.
I put the thermocouple under the mounting bracket for the sensor,
which is still in there, just disconnected. I'd rather put the
thermocouple in contact with the rollers themselves, but I couldn't
find an easy way to do that.