Which wires to toolhead can be joined?
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Looking to reduce the number of wires in the moving loom between the toolhead and back of the printer/controller, etc. This is in hopes of reducing the mass and number of wires moving and bending regularly. Also hoping to reduce the number of wire related failures experienced.
I am in the process of obtaining multicore silicone wires that are claimed to be more flexible and longer lasting....let's see.At present I need 23-25wires (without any shared) to handle the items on my toolhead, which are as below:
1x 2pin heater
1x 2pin thermistor
1x 2pin hs fan
1x 2pin 5015 part fan (possibly split out to 2)
1x 4pin stepper
1x 3pin xstop
1x 3pin fil runout
1x 5pin bltouch
....and possibly 2 further wires for leds.I have a Duet 2 wifi and duex5.
I believe the +3.3v and gnd pins for the x endstop and filament sensor can be grouped together? (laser sensor) (ie gnd + gnd, v_in and v_in).
I believe instead of a GND, the +v_in for the fans can be grouped and the fanx_- is the control pin for the PWM fans? So that implies I should be able to group the V_fan connectors to one 24v source?
BLtouch requires 5v for servo and 3.3v for probe in pin? possibly can share gnd with endstops for probe in? Then separate gnd for 5v side?
Also, is the heater controlled on the + or -? Seems like they are also controlling the - side?
The PCBs I found around don't seem to provide the options I want. The latest stealthburner option mostly does, but is missing the pinout for the BLTouch.
Anyone know if I have the above in combos correct? Has someone already worked all this out previously?
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@dmandn said in Which wires to toolhead can be joined?:
I believe the +3.3v and gnd pins for the x endstop and filament sensor can be grouped together? (laser sensor) (ie gnd + gnd, v_in and v_in).
Yes.
I believe instead of a GND, the +v_in for the fans can be grouped and the fanx_- is the control pin for the PWM fans? So that implies I should be able to group the V_fan connectors to one 24v source?
Yes.
BLtouch requires 5v for servo and 3.3v for probe in pin? possibly can share gnd with endstops for probe in?
BLTouch does not need 3.3V. It can share ground with the endstops.
Also, is the heater controlled on the + or -? Seems like they are also controlling the - side?
Yes. You can common fan V+ and heater V+ if you take it from the heater connector, although you will lose the benefit of the lower rated fuse in the fan V+ supply.
The thermistor wires cannot be commoned with other wires, except that 2 or more thermistors can share the VSSA wire.
