Homebrew PCBs

That GBC 220 mod looks great, being so simple. But the laminator isn't 
available  new or used at less than the 4 roller, all metal, Trulam 
TL320B cost.
The advantages of my mod (for Apache AL13P/Trulam TL320B)  include: 
Temperature sensor failure protection, one touch toggling for PCB or 
paper lamination with beeper feedback, enable cool down  of rollers 
without changing preset temperature to prevent roller distortion if 
parked while hot, zero modification to the laminator's housing or 
circuitry other than swapping a 6 pin cable (reversible) .  This package 
of capabilities exceed all other mods.

When I modded the TL320B, I just removed the Apache AL13P mod and 
swapped it in directly, took about 5 min. I also made an SMT change to 
the mod PCB as I stock a lot of 12F675 PIC in SOIC.
https://hackaday.io/project/3363-apache-al13p-tl-320b-one-pass-pcb-toner-xfer