Hello.
Decided I was annoyed by the lack of development on the Taz 6 so would try the Drunken Octopus Firmware-- but I use a M175 toolhead. It looks like it is supported but which firmware should I be downloading using the downloader?
Thanks in advance!
Currently I am not building Taz 6 firmware with M175, but I could add this to the next release. The M175 toolhead is totally untested in Drunken Octopus, since it is not a toolhead I have myself.
Oh. I thought it was supported as I could have sworn I saw it in some earlier patch notes. Well darn. If you add it I will play with it. 
@mythikwolf: I added M175 firmware in r32 which I released today. Let me know if it works for you!
Hey @marciot. So I loaded it up today and that went fine. However on first print, it failed on homing. It missed the homing disk by about 5mm and halted. I think that issue comes from the fact the M175 sits a little further forward than its big brother counterparts.
~mythikwolf
I need you to do something for me. Load up LulzBot firmware, home the printer, make a small mark on your build plate, jog the toolhead to the mark and record the exact coordinates of the mark. This needs to be precise, I recommend looking in from the front and from the sides to make sure, you may even consider remove the fan shrowd from your toolhead if you are able. Now, load up Drunken Octopus, home the printer, jog the toolhead to the mark and record the coordinates of the mark. Send both values to me. This will give me the necessary offset and I can update DO with it.
So interestingly enough, firmware doesn’t let me jog it from the LCD with the knob. Doesn’t actually have the controls. I’ll have to do it from the software.
I’ll have to work on it tonight or in a moment between meetings at work.
Homed using Drunken and it just locks with Home Z First. Cannot jog anything. Not even seeing axis control commands on the LCD. I am trying to figure how how I can assist more here. 
So I fiddled with this and the unfortunate part is after it homes using DO-- it crashes into the bed and basically stops working. A reset of the printer afterwards unfortunately doesn’t provide me with any axis controls to move the toolhead at all.
I am wondering-- could we pull the coordinates from an M503 with the Lulzbot firmware?
M503 won’t give the information I need, I think.
However, I think I can make do by knowing the X_MIN, X_MAX, Y_MIN and Y_MAX configured for the printer with the toolhead. Load up LulzBot firmware, home, and then jog as far to the left and front as you can. Record the X and Y minimum values. Then jog to the rightmost and rearmost location the axis travels to and record those values. Post those for me. I think I can compute the toolhead offset from those. Then do one more thing. Home the machine. It should stop after homing over the button. Record that position. This is what I need:
Added the Z height after homing incase you needed it.
@marciot-- is there anything else you need from me? Absolutely willing to play test subject.
This is what I need. Thanks. I’ll look at this this weekend.
@mythikwolf: Please try this firmware on your TAZ6 with the M175. You should be able to upload it to the printer using Cura LulzBot Edition, simply select “Settings -> Printer -> Manage Printers -> Upgrade Firmware -> Upload Custom Firmware”
If this works for you, I’ll make an official release with it. Thank you for your help testing this.
Marlin_Oliveoil_TAZ6_Lutefisk_M175_2.0.0.1_0beb487e7f.hex.zip (173.1 KB)
Auto Home worked, Bed Leveling worked and we got a successful calibration cube. I’ll et you know if I run into anything but I think we are good.