I am building a quick swap for my extruders. It is a hard way to say that I am adding connectors near the extruder, in order to detach it in a few minutes without soldering.
The reason is that the velleman k8200 stock extruder is good with ABS and PLA, but not with others. Another reason is that my first extruder stopped working after some abs - pla cicles.
To solve my problems I have decided to get a bulldog XL, but sadly the only hot end I could get was a magma. This hot end has problems with PLA, so it is perfect for my needs! I will print PLA with the stock extruder and other filament with the bulldog XL.
I have soldered some connectors to the stock extruder and tested out: it was working normally. I have checked the wire couples with a multimeter discovering that:
first couple: GREEN (?) - BLACK (?)
second couple: BLUE (?) - RED (?)
On my Bulldog XL I have the following couples:
first: RED (A+) - BROWN (A-)
second: YELLOW (B+) - BLUE (B-)
I have then connected the bulldog XL as following:
BULLDOG -> STOCK
BROWN (A-) -> BLACK
RED (A+) -> GREEN
BLUE (B-) -> RED
YELLOW(B+) -> BLUE
The bulldog was’t moving, so I decided to connect again the stock extruder: no movement either. To be sure I plugged the extruder connector into the Z axis plug (on the board) and the extruder started to move again.
I guess that the wiring of the bulldog is incorrect, but I have absolutely no idea on how to connect it, since I couldn’t find any useful information. All I have are the couples of the two motors and a label for each wire of the bulldog xl A+, A-, B+, B-.
