Above, the two "failures" in the milling process,  the first one (left) the edges were not milled, and the second (right) the endmill was not properly position, so the inferior part was just not milled, you need to make sure your xmin and ymin values in the fab modules Before actually milling anything. Below, one of the ones that got right, some copper residues can be seen on the milled tracks, I had to remove them using a cutter.
And after some work, the PCB was already done. I cut it using a Guillotine Roberto brought into the lab, although I learnt later that the plate actually needed to be heated prior to cutting, anyway it turned just fine. Why three? Well, I thought that a back-up plate would be needed just in case the soldering would not turn right.
Soldering turned out to be a messy affair, and quite time consuming, many mistakes were made.

While AVR testing, the USB connector belonging to my first plate got desoldered and I lost it. The second one got better.

In the end, I got to solder all the components to the board, but, when the AVR testing light came red, I checked, and after reviewing some connections with the soldering device, I got the green light.

And then, drama ensued. And the name of the drama was... fuse

I could not  get the fuse to work, rechecked the connections, verified the soldering, reviewing with the microscope, no results. I even got to my backup PCB s and soldered the parts again... still n o success.

Trying to find the cause of the problem, the lab staff  suggested some additional testing using the oscilloscope, which we did, conclusion: the circuit had somewhere, one or several short circuits, and since all the parts were already soldered, I had to start over and be extra-careful, and finally, I was able to get it done.   I cut and pasted the command line results below:

root@tecsup-N56VZ:/home/tecsup/Descargas/firmware/fabISP_mac.0.8.2_firmware# make fuse avrdude -c avrisp2 -P usb -p attiny44 -U hfuse:w:0xDF:m -U lfuse:w:0xFF:m
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e9207
avrdude: reading input file "0xDF" avrdude: writing hfuse (1 bytes):
Writing | ################################################## | 100% 0.00s
avrdude: 1 bytes of hfuse written
avrdude: verifying hfuse memory against 0xDF:
avrdude: load data hfuse data from input file
0xDF: avrdude: input file 0xDF contains 1 bytes
avrdude: reading on-chip hfuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of hfuse verified
avrdude: reading input file "0xFF"
avrdude: writing lfuse (1 bytes):
Writing | ################################################## | 100% 0.00s
avrdude: 1 bytes of lfuse written
avrdude: verifying lfuse memory against 0xFF:
avrdude: load data lfuse data from input file 0xFF:
avrdude: input file 0xFF contains 1 bytes
avrdude: reading on-chip lfuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of lfuse verified
avrdude: safemode: Verify error - unable to read hfuse properly. Programmer may not be reliable. avrdude: safemode: Fuses OK avrdude done. Thank you.



Then, it was about time to make the program:

root@tecsup-N56VZ:/home/tecsup/Descargas/firmware/fabISP_mac.0.8.2_firmware# make program
avrdude -c avrisp2 -P usb -p attiny44 -U flash:w:main.hex:i
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e9207
avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file "main.hex"
avrdude: writing flash (2020 bytes):
Writing | ################################################## | 100% 0.70s
avrdude: 2020 bytes of flash written
avrdude: verifying flash memory against main.hex:
avrdude: load data flash data from input file main.hex:
avrdude: input file main.hex contains 2020 bytes avrdude:
reading on-chip flash data:
Reading | ################################################## | 100% 0.58s
avrdude: verifying ... avrdude: 2020 bytes of flash verified
avrdude: safemode: Fuses OK avrdude done. Thank you. avrdude -c avrisp2 -P usb -p attiny44 -U hfuse:w:0xDF:m -U lfuse:w:0xFF:m
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e9207 avrdude: reading input file "0xDF"
avrdude: writing hfuse (1 bytes):
Writing | ################################################## | 100% 0.00s
avrdude: 1 bytes of hfuse written avrdude: verifying hfuse memory against 0xDF:
avrdude: load data hfuse data from input file 0xDF:
avrdude: input file 0xDF contains 1 bytes
avrdude: reading on-chip hfuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of hfuse verified avrdude: reading input file "0xFF" avrdude:
writing lfuse (1 bytes):
Writing | ################################################## | 100% 0.00s
avrdude: 1 bytes of lfuse written
avrdude: verifying lfuse memory against 0xFF:
avrdude: load data lfuse data from input file 0xFF:
avrdude: input file 0xFF contains 1 bytes
avrdude: reading on-chip lfuse data:
Reading | ################################################## | 100% 0.00s
avrdude: verifying ...
avrdude: 1 bytes of lfuse verified
avrdude: safemode: Fuses OK
avrdude done.
Thank you.

So even when I was able to get it finally done, I must admit that a lot of practice regarding soldering is needed in order to get through the Academy, so  let's get to it!