Anet A8 Plus 30mm Spool Holder
Description
This is a 30mm OD X 143mm spool holder tube designed to replace the PVC 20mm X 100mm spool holder tube that came with my Anet A8 Plus. I share spools and spool adapters between all my FDM printers. The spool adapters I use are: https://www.thingiverse.com/thing:2387254 I like my spools to roll freely without hopping and jostling around during prints so I use a 30mm tube on my printers that fit the spool adapter by Jantzenday that I listed above. I'll be honest, this spool adapter is probably the model I feel most shame for publishing here. While I designed it initially thinking there was enough girth in the material at the transition point from 30mm to 20mm where it connects to the spool arm that came with the A8 Plus, my first print was an epic failure. It looked good, and while I was tightening the nut to attach it to the spool arm, it snapped. My first print was using 1mm walls with 30% infill. I decided to print it again with 100% infill. While it was printing for several hours, I decided it might still be too weak at the transition point, so I made an insert "hardener" for it and started that printing on another printer. Both the spool tube and insert completed printing at about the same time, so I pressed the insert into the tube and that's what I've been using on my A8 Plus. Perhaps the tube itself would be strong enough without the insert, I just wasn't willing to risk it after such a long print. Ideally, something like this should be printed with a material better suited for the task than PLA. Unfortunately, I don't have any PETG, I can't print ABS in the house, and it's way too humid to print in the garage right now, so this is what I got. Maybe adding the insert's thickness to the original model would have been a better strategy, but as I said, this is what I did, and it's working on my A8 Plus. Feel free to modify and or use it in any way you see fit. I'm trying to post everything I do here on Thingiverse so that if anybody asks what I'm using for this or that, it's here, even when it's something as poorly implemented as this. In hind sight, I should have modeled the 30mm portion of the tube with 3/4" female threads and used a 3/4" x 1/2" hex screw to secure the tube to the spool holder arm. Hindsight is always 20/20... :)
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