My mendel prusa is pretty mechanically reliable now after building it, tweaking it and replacing plastics that break for no apparent reason. The only problem i seem to have is with the connections to the ramps board.
This wasmt a kit i sourced parts from all over and built it myself.
Im continually having to fiddle with the conndctors to make sure they are seated properly.
Especially the end stops and temp sensors.
Any time i move the machine or adjust something near the ramps board where i might touch the wiring the dupont connectors seem to come loose.
The mega and ramps board along with the graphical display are mounted securely on perspex across the top front of the printer.
When i wired it all up i used proper dupont housings which i properly crimped and tested they were secure.
I made sure i cable tied the wiring for strain relief leaving a bit of slack so the connectors arnt strained.
But i still need to periodically push the wire into the housing to push the crimp tightly on to the pin.
It seems the crimped female sockets in the dupont connector casing creaps up the pin until it looses the electrical connection.
The little plastic flap on the connector housing doesnt seem to keep the crimp on the pin.
Im almost at the stage of soldering wires to the ramps board and using inline cable plugs instead.
Has amyone else had this problem and found a solution?
Gordon
This wasmt a kit i sourced parts from all over and built it myself.
Im continually having to fiddle with the conndctors to make sure they are seated properly.
Especially the end stops and temp sensors.
Any time i move the machine or adjust something near the ramps board where i might touch the wiring the dupont connectors seem to come loose.
The mega and ramps board along with the graphical display are mounted securely on perspex across the top front of the printer.
When i wired it all up i used proper dupont housings which i properly crimped and tested they were secure.
I made sure i cable tied the wiring for strain relief leaving a bit of slack so the connectors arnt strained.
But i still need to periodically push the wire into the housing to push the crimp tightly on to the pin.
It seems the crimped female sockets in the dupont connector casing creaps up the pin until it looses the electrical connection.
The little plastic flap on the connector housing doesnt seem to keep the crimp on the pin.
Im almost at the stage of soldering wires to the ramps board and using inline cable plugs instead.
Has amyone else had this problem and found a solution?
Gordon