Large Shifts on my prints

A forum dedicated to the stock LulzBot TAZ 3D Printer
b-morgan
Posts: 129
Joined: Fri Aug 11, 2017 8:53 am

Re: Large Shifts on my prints

Post by b-morgan » Tue Jun 12, 2018 3:51 pm

alexwolf1216 wrote:
Tue Jun 12, 2018 8:42 am
So my belt was a little loose and I tightened it. I had two really great prints, both smaller, and I ventured back into a larger one. It the worst I’ve seen yet. I caught the nozzle dragging across the print too.
If you are using PLA, you may need to add an additional cooling fan. I've had the nozzle drag issue (but not the shift issue) and it was resolved with addition cooling. PLA loves cooling.

alexwolf1216
Posts: 6
Joined: Tue Feb 13, 2018 10:25 pm

Re: Large Shifts on my prints

Post by alexwolf1216 » Tue Jun 12, 2018 4:12 pm

I’m not opposed to adding another. I’ve already purchased a dual extruder (worthless and I gave up on it), replaced the stock nozzle and replaced the bed with the new modular one.

How would I add a second fan?

b-morgan
Posts: 129
Joined: Fri Aug 11, 2017 8:53 am

Re: Large Shifts on my prints

Post by b-morgan » Wed Jun 13, 2018 2:07 pm

Here's how I did it. I started with a manual solution and then added two 80mm fans attached to the frame and controlled with a DC Motor / Stepper hat on the Raspberry Pi running OctoPrint that controls the printer. The 80mm fan speed matches the speed of the cooling fans on the tool head (controlled by M106 and M107 gcode commands). The hat can control two more fans if I need them.

viewtopic.php?f=36&t=7444&p=41055#p41055

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