Extra current path for Heater bed using Fuse tap
Hello,
I was thinking about adding an extra positive pathway for current to make it from the Rambo to the heater bed using the fuse tap shown below.
Any suggestions on where I should add a parallel negative wire?
Re: Extra current path for Heater bed using Fuse tap
Tell me, how will the additional power be switched?
Peter
Edit: Here's the circuitry. Note the negative is switched via the mosfet.
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Extra current path for Heater bed using Fuse tap
In looking at the schematics, I see your point. I guess I will just solder the wires right below the terminal screws on the bottom of the rambo board and perhaps use a deans connector.
Re: Extra current path for Heater bed using Fuse tap
David
I really do believe that it best to cut out all mechanical only connections for the high currents if you are having issues with those already present.
I agree that deans connectors should be OK, but is it worth the risk?
You could double-up on the positive rail, bue that still leaves a problematic negative (switched) rail.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Extra current path for Heater bed using Fuse tap
Good point. I will just leave one connection which will be the heat bed wires directly solder to the underside of the Rambo board.