Repairing Lulzbot Taz 6

Hey y’all,
We found this LulzBot Taz 6 printer in our schools’ surplus. I’ve been tasked with repairing it to make it available for students to use. I think out the motor that is used to turn the gears to push out filament isn’t working. At first, I thought it was the Z-offset so I manually adjusted it to the correct settings and still was not printing right. Then thought I was maybe using the wrong material in case the nozzle had been modified for a smaller diameter, since I saw in a previous post the diameter was different than the standard, but that also did not work, that’s when I saw the filament gears were not moving at all I had to manually move them to get out filament during a print. Which is weird because when selected to extrude material it does. Would y’all recommend changing the motor and does anyone have any tips on how to do it, or any advice. Sorry I know this is kind of all over the place, I’m used to messing with anycubic and ender 3 so I might be a little out of my depth here

Simple things first:
The extruder gears won’t turn if the nozzle temp is below minimum temp, so have the nozzle at 200c (or higher if it’s not PLA) when you tell it to extruder/retract.

What software are you using to do your test prints?

What firmware version is the printer running?

Some pictures of the toolhead would help determine if anything’s been changed. If you open the idler arm and look in the filament hole, do you see any PTFE tubing? That’s a dead giveaway they’ve tried to modify it for 1.75mm. The location is indicated here, but blocked from view.

2 Likes