TAZ 4

Sudoroom has a TAZ 4 3d printer, that was donated in 2022. It should not be confused with the older TAZ 3 3d printer, which didn't work very well as a 3D printer.

Documentation for the TAZ 4 from Lulzbot corporation

The extruder head from the TAZ 3 was transferred onto the TAZ 4 which will presumably make a better 3D printer. The TAZ 3 will be converted for solder paste dispensing only

The TAZ 4 uses an Ultimachine Rambo 1.3L main board and here is the correct File:RAMBo 1.3L Schematic.pdf [Image:https://reprap.org/wiki/File:Rambo-conn-all.jpg] The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it.

The TAZ 4 didn't work because Fuse F3 on the RAMBO main board was missing. It's supposed to be a Littelfuse OMNI-BLOK 154 series and we didn't have any, so I stuck a 5-amp F1460CT-ND in there since we have dozens of them in the FUSES bin:

And now it turns on and the LCD lights up but i can't get anything to move from the controls. Tune in next week to see what happens.