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Hi Rob,

No matter how hard I pressed, with a flat plate I could not get good, even transfer.

So I used what seemed most logical to melt toner - a fuser unit from an old laser printer or copier.

One of the rollers was silicone, so it conformed very well to the PCB and paper stack, it worked?single?pass.

To drive it I used a heavily geared motor from a chicken grill, and I made the temperature controller myself.

One might use the printer drivetrain, but I had to run it much slower than the printer, to allow for the large thermal mass of the PCB.

ST

On Wed, Nov 13, 2019 at 3:15 PM Rob via Groups.Io <roomberg=[email protected]> wrote:

I learned about toner transfer and laminators 20 years ago before I owned a laser printer.

I bought a "good" laminator and then followed the instructions to modify it to be a higher temperature of? 340 degrees to meet the toner melting point requirement.

BIG mistake there.

Because the laminator drive gear that is press fit on the rollers is made of nylon

which has a melting point higher than ID card plastic ( the purpose for a laminator )

so

raising the temperature to accommodate TONER transfer melted the nylon drive gear so then the roller did not turn and the artwork and PCB

just cooked in one spot and seized the roller.

and then

I moved on to the simple press method.

with 3 ten pound steel 6 inch square? plates.

More details here:

The laminator melt down experiment here:

Over the many months of working through the laminator problems of motor speed and heat temperature control

I also was chasing a cheaper laminator.

So just out of curiosity bought an AL9

detail tear down here:

The AL9 cost $17

and upon examining what it was made of .... mostly plastic ....

I thought it would be a bad idea to increase its heat control beyond its factory 293 degree limit.

So.....?? considering that 1 inch thick steel plates... in six inch squares....? can cost you $75 to mail order.....

shipping 30 pounds of steel is not cheap.....

I was hoping to find a laminator that did 340 degrees... that cost around $20... something we could pound with the kids

and leave in school.

Have any of you found a cheap laminator that does toner transfer in one pass?

Rob

On 11/13/2019 12:18 AM, AA9GG wrote:

Make and model of the laminator?? I just ordered a "Royal Sovereign 9" Desktop Laminator" from Office Max for doing toner transfer.

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Paul Mateer, AA9GG
Elan Engineering Corp.