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First of all, thanks for a brilliant firmware, have been using for quite a while now and it's just perfect.
I have a question about using a second feeder (plugged into extruder 2) but using a single hotend. Basically I'd like to be able to use an E3D Titan I have on order as a feeder for certain situations feeding into the standard hotend. So I'll just put this in place (currently working on how I'm going to set-up a quick mount) and use this instead of my |Robert| feeder at the back of the machine.
Rather than unplug the normal feeder stepper with the pancake stepper I'll have attached to the E3D Titan I would like to (either in g-code or in a menu setting) tell the next print to feed material using extruder 2 but carry on using heater/temp sensor 1.
I guess I might need to load the dual extruder firmware but I suspect that will expect a second hotend.
So my questions are:
1) is this possible/sound sensible?
2) can I do this without firmware modification and if not,
3) any pointers to help me get started in modifying the source myself e.g. things to be aware of etc?
Many thanks in advance.
Edit: I've got myself the source and been able to build it on my machine so I have the answers to the above. I've created a branch locally for now and added a new define DUAL_FEEDER that replaces the Change Material menu with a Feeder selection menu. Without modifying the gcode I can now choose to feed using either feeder through the same nozzle. The only other software changes I need to make is to add the E2 steps/mm and E2 motor current options in - for now I'm changing E1 using the front panel when changing feeder, changing the steps from 282 to 456 is a wrist ache job! I've also made a quick-release mount for the Titan that requires no modifications to the printer, will put up on Youmagine in the next few days. The stepper powering the Titan is plugged into the E2 output on the motherboard so no need to swap and unplug between steppers.
@tinkergnome - once I've finished the firmware mods would you like me to send you the changes? I have a github account but have no idea what I'm doing so could just send you the changed files for you to look at. I've made changes such that it shouldn't effect anything else and only apply when DUAL_FEEDER is defined so that it may become another build option.
More information during print
in Firmware
Posted · Edited by Guest
Found answer myself
First of all, thanks for a brilliant firmware, have been using for quite a while now and it's just perfect.
I have a question about using a second feeder (plugged into extruder 2) but using a single hotend. Basically I'd like to be able to use an E3D Titan I have on order as a feeder for certain situations feeding into the standard hotend. So I'll just put this in place (currently working on how I'm going to set-up a quick mount) and use this instead of my |Robert| feeder at the back of the machine.
Rather than unplug the normal feeder stepper with the pancake stepper I'll have attached to the E3D Titan I would like to (either in g-code or in a menu setting) tell the next print to feed material using extruder 2 but carry on using heater/temp sensor 1.
I guess I might need to load the dual extruder firmware but I suspect that will expect a second hotend.
So my questions are:
1) is this possible/sound sensible?
2) can I do this without firmware modification and if not,
3) any pointers to help me get started in modifying the source myself e.g. things to be aware of etc?
Many thanks in advance.
Edit: I've got myself the source and been able to build it on my machine so I have the answers to the above. I've created a branch locally for now and added a new define DUAL_FEEDER that replaces the Change Material menu with a Feeder selection menu. Without modifying the gcode I can now choose to feed using either feeder through the same nozzle. The only other software changes I need to make is to add the E2 steps/mm and E2 motor current options in - for now I'm changing E1 using the front panel when changing feeder, changing the steps from 282 to 456 is a wrist ache job! I've also made a quick-release mount for the Titan that requires no modifications to the printer, will put up on Youmagine in the next few days. The stepper powering the Titan is plugged into the E2 output on the motherboard so no need to swap and unplug between steppers.
@tinkergnome - once I've finished the firmware mods would you like me to send you the changes? I have a github account but have no idea what I'm doing so could just send you the changed files for you to look at. I've made changes such that it shouldn't effect anything else and only apply when DUAL_FEEDER is defined so that it may become another build option.