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Another Duet question. . . sorry if I'm posting this in the wrong spot, (there just doesn't seem to be a lot activity in the Duet Forums)

How does one configure the duet to work with a cyclops. I know where all the wires go, but I'm looking at the web control interface and there isn't a place where I'm allowed to use hot end sharing or mixing. Is it the 2 Drives / 1 Heater? or is this all done from the Gcode? I'm just confused.

In the matter control software there is a "share temperature" button is used to specify if more than one extruder share a common heater cartridge. Is there something similar in the duet interface?

Config.g establishes all your configuration. The easiest thing would be to define several tools at the required mix ratios and slice the appropriate volumes to the appropriate tools. I don't have the gcode reference in front of me.

See https://duet3d.com/wiki/Configuring_Rep ... on_section for how to define a tool for a mixing hot end. You can use the M567 command to set the mix ratio and the M568 command to enable mixing. As has already been suggested, you can define several tools with different mix ratios if you wish.

It's probably best to use firmware retraction, so that all extruder drives retract the same amount regardless of the mix ratio. I am told that this works well for fhe Diamond hot end. Use M207 to define the firmware retraction parameters.

Yup, got it . . . i took the two extruder, one hot end code and put it in the machine. I've calibrated the heaters.

Got a few questions:

1st. how do i command the second extruder to move? I see in the duet web control only one extruder control is there. How do i switch it so that the 2nd extruder can move manually?

2nd. how do i adjust speed? The steps are adjusted correctly in config.g. however how do i adjust it for manual moves. I've got 100, 50, 25, 10, 5, all of which is a bit fast for my greg wade extruder. This is probably a simple G code command. . . .

3rd. how does the slicing work for 2 extruders. Normally i slice it in matter control, but set two extruders in the slicer and generate a G code. Then it just goes to the machine. Is there extruder switching code i need to put in at the specific headers?

Thanks for any help you can provide.

1. To choose which extruder to move, select the tool that uses that extruder, as you defined in the M563 command.

Is the Cyclops capable of mixing, or just switching? If just switching, then you will probably be better off defining 2 separate tools, one using each extruder, but both using the same heater. If it really can do mixing, then you may want to define several tools for it, including one with a mix ratio of 1:0 and another with a mix ratio of 0:1.

2. Any extruder should be able to manage 5mm/sec. The other speeds are for loading, unloading and retracting filament. You can use a manual gcode command if you want other speeds, e.g G1 E5 F240 will extrude at 4mm/sec (240mm/min).

3. Slicers for dual extrusion send T0 and T1 commands to say which material they want to extrude. So you need to configure two tools using M563.

HTH David