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Summary
Firstly, Thanks to the users of the Lulzbot Community and Lulzbot itself for the open designs and great user support.
Secondly, Thanks to Vitormhenrique for the inspiration and getting the ball rolling a while back when he did his upgrade.
This combination of Files and software will update a TAZ 5 to Marlin 1.1, Enable auto bed Leveling and Thermal Protection, Add a Z-Probe, better extruder fan, and Dual Filament Cooling Fans. You will need to purchase, a Z-Probe, Opto isolator, 2 40mmx10 24v fans, 1 40mmx10 5v fan, the proper connectors (depending on build date of your TAZ 5), and some new screws and heat set inserts.
The Firmware has been ported with the Taz 5 settings by Sebastian. The changes from vanilla Marlin 1.1 are listed below:
You will need to print:
-Left, Right, and Extruder Fan Ducts (Lulzbot)
-Strengthened Extruder Mount and Spacer
-Z Probe Mount
-Extruder Mount Lancewood (Lulzbot)
Print Settings
Printer Brand:
LulzBot
Printer:
Rafts:
Doesn't Matter
Supports:
Doesn't Matter
Infill:
65+
GCode for Autobed level and Prime / Purge Nozzle
Start GCode including nozzle purge and wipe
G91 ; switch to relative positioning
G1 Z10 ; safe raise of z axis to ensure probe doesn't hit bed clamp
G90 ; switch back to absolute positioning
G28 ; home all axes
G29 ; level print bed
G1 X298 Y137 Z2 F5000 ; move to wait position right hand side of the table
G1 Z0.4 ; position nozzle
G1 E25 F300 ; purge nozzle
M400 ; wait for purge to complete
G1 X285 F1200 ; slow wipe
G1 Z0.5 F1200 ; lift
Firmware
Changes to original-Marlin 1.1-RC2:
.) TAZ specific values added (steps/mm, ..)
.) New value in 1.1 "Travel acceleration" set to 1200
.) Enabled FW retraction with my best values for that
.) Enabled SD Support (of course..)
.) Reduced extruder acceleration from 3000 to 2400. 3000 is TAZ 5 default, but thats to high. Extruder is missing steps, resulting in blobs when unretracting. 2400 is the highest safe value for my extruder.
.) Enabled filament change possibility
.) Preheat options for PLA and ABS
.) All "Lulzbot-specific" changes (only Boot logo and another font, to be precise ;) )
.) Just for information: Thermal protection is enabled by default in this Marlin release, so your TAZ shouldn't get on fire as seen last days in this forum 8-)
Edit: Use it at your own risk, of course..
Materials
Z-Probe
http://www.ebay.com/itm/321381642366?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Connector Housing
http://www.mouser.com/Search/ProductDetail.aspx?R=70107-0001virtualkey53810000virtualkey538-70107-0001
Connector Terminals
http://www.mouser.com/Search/ProductDetail.aspx?R=16-02-0114virtualkey53810000virtualkey538-16-02-0114
Opto Isolator
http://www.amazon.com/gp/product/B00UWSGXEW?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00
FW Courtesy of Sebastian:
https://forum.lulzbot.com/viewtopic.php?f=18&t=2136&start=20
Wiring
Opto-Isolator Wiring:
The wiring also depend on the type of capacitive sensor that you are using, if it is NPN or
I suggest using a buck converter or variable voltage converter to lower the voltage the probe sees to something around 18.
PNP.
Using NPN, the sensor will sink current:
Sensor to 24V, Ground, and the output of the sensor to GROUND on the "IN* side of the board".
24V on the IN-1
Endstop connected to VCC and OUT-1 (you need to check the polarity, positive 5V side to VCC)
Using PNP, the sensor will source current:
Sensor to 24V, Ground, and the output of the selsor to IN-1.
Ground to GROUND on the "IN* side of the board".
Endstop connected to VCC and OUT-1 (you need to check the polarity, positive 5V side to VCC)
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