I was wondering if you could upgrade this to a dual extruder system. It looks like there is a place for a second cartridge but could the computer boards in the back handle it. Also, could you use the standard firmware or would you have to use repeater host?
I checked the board yesterday ... seem every circuit needed are all there just need to be populated ... the stepper driver board pin-out seems same as pololu's board but just wider.
Anyone resourced out what parts are needed yet? If it is the same as the Pulou driver, would it be easier to solder a connector into place that fits the pulou?
Once this is complete, what sort of Dual extruder could fit it? and what mount needs to be created?
There is a sperate branch of on this forum that explains how to populate and what is needed to make the fan work. Some minor soldering looks like it has to be done.
The tube took damage during my removal of a broken piece of filament inside of it. Once I had removed the filament, the extruder never fed properly again. The dismantling of the extruder shows that there is scrapes inside one side and it is damaged on the side that goes into the heater block as well, probably also damaged by my during the retrieval of the 30mm piece.
The break was caused by a broken heater wire and the extruder was being forced fed the filamen (clicking!) until I am guessing the filament finally snapped.
I received a replacement extruder so instead of throwing this one away, why not repair it. The throat seems to be the only part damaged so it would just be a matter of replacing it and screwing it into the heater block and I should have a spare. I replaced the heater with a 40w since I could not find a 35w.
If by not feeding properly, you mean you have a blockage, you could try fix it yourself.
Soak it in acetone for 5-7 days. Use 0.4mm drill bit gently a couple times a day. If it's tight, dont force it, drop to a 0.3mm drill bit. Keep it perpendicular to avoid filing the inside of the nozzle.
after the soak, you can cook it with a mini blow torch till it just glows red. (this helps burn off any remaining ABS) Let cool naturally to room temp.
Soak again for 24 hours.
Should work great after that.
Did you ever get around to upgrading your nozzle?
If so, I'm looking at replacing my factory nozzle with a new barrel, heater block and interchangeable nozzle and was wondering if you had any insight that might save me some headaches along the way?