342
edits
Difference between revisions of "TAZ 4"
no edit summary
(add information about firmware and digipot current controls) |
|||
| Line 2: | Line 2: | ||
[https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation] | [https://download.lulzbot.com/TAZ/4.0/ Documentation for the TAZ 4 from Lulzbot corporation] | ||
<big>'''The following start code should be entered until we can recompile the [https://download.lulzbot.com/TAZ/4.0/software/current/firmware/Marlin/ firmware] | |||
<code>M907 E150</code>'''</big> | |||
[[File:Taz4-3d-printer.jpg|thumb]] | [[File:Taz4-3d-printer.jpg|thumb]] | ||
| Line 7: | Line 10: | ||
The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board] and here is the correct [[File:RAMBo_1.3L_Schematic.pdf|RAMBo_1.3L_Schematic]] | The TAZ 4 uses an [https://reprap.org/wiki/Rambo Ultimachine Rambo 1.3L main board] and here is the correct [[File:RAMBo_1.3L_Schematic.pdf|RAMBo_1.3L_Schematic]] | ||
[ | [[File:720px-Rambo-conn-all.jpg]] | ||
The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it. | The original 14-pin "Extruder 0" connector on the TAZ4 was removed from "Aux Power Mosfet Output" (pins 5/red,6/black), E0 Heat (pins 12,13), E0 Fan (9/black,10/red) and Ground (pin 2), and E0 (3,7,11,14). The extruder harness from the TAZ3 was installed in it. | ||
The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg|thumb|left]] | The TAZ 4 didn't work because both Fuse F2 and F3 on the RAMBO main board were missing. They're supposed to be [https://www.littelfuse.com/products/fuse-blocks-fuseholders-and-fuse-accessories/fuse-blocks/154.aspx Littelfuse OMNI-BLOK 154 series] and we didn't have any, so I stuck 5-amp [https://www.digikey.com/en/products/detail/littelfuse-inc/0466005-NR/521341 F1460CT-ND] in there since we have dozens of them in the FUSES bin: [[Image:Taz4_fuse_kludge.jpg|thumb|left]] | ||
And now it turns on and mostly works, but the extruder stepper is mostly skipping. Most likely the current needs to be adjusted for the extruder stepper driver, which is something we have to read the manuals to figure out how to do - there are no tiny potentiometers to adjust on this RAMBO board, only a "digipot". | <s>And now it turns on and mostly works, but the extruder stepper is mostly skipping. Most likely the current needs to be adjusted for the extruder stepper driver, which is something we have to read the manuals to figure out how to do</s> - there are no tiny potentiometers to adjust on this RAMBO board, only a "digipot". | ||
The digipots are controlled with the [https://marlinfw.org/docs/gcode/M907.html M907 command] | The digipots are controlled with the [https://marlinfw.org/docs/gcode/M907.html M907 command] | ||
the default values are found in | the default values are found in | ||