Long arm Hanging Universal spool re-winder (Discontinued)

prusaprinters

<p>This is an old design I no longer recommend. Instead <a href="https://www.prusaprinters.org/prints/30862-filament-management-system">I suggest this design</a>.</p> <p><strong>Why is it discontinued?</strong><br/> Here are the main problems with rewinders of any kind:</p> <ul> <li>Very difficult to tune to keep working</li> <li>A new spool is heavier and requires more rewind power</li> <li>The springs can break if you make them too tight</li> <li>When springs are used they get tighter. So the rewind pressure is not consistent and difficult to tune.</li> <li>The spools often are out of balance and wobble</li> <li>When they don't re-wind the filament can get tangled up</li> <li>It takes a long time to change out a spool because you have to remove the re-winder and put it on the new spool then finesse it into place in your hanging mounts.</li> </ul> <p>In the end I gave up on Re-Winders. Buffers are more reliable. And my new buffer is quick and easy to load so I am happy.</p> <h3>Print instructions</h3><p><strong>Here is the old description for these hanging holders.</strong></p> <p>I really like <a href="https://www.prusaprinters.org/prints/3223-hanging-mount-for-universal-auto-rewind-spool-hold">CraftCadet's Hanging Universal spool re-winder</a>.<br/> But the arms that hold the filament guide left the end of the filament out in front of the spool. Since I have my MMU2 located about 9 inches below these hanging mounts the PTFE tube would make the filament point out at a weird angle. That caused some problems where the filament would fall off the spools. So I made these new arms to relocate the tube holder to be lower. Now the filament lines up nicely on the spools.</p> <p>Also I added some hex reliefs so the 3M nuts will get snugged into place and won't come loose over time. This means there is a right and left arm now.</p> <p>You will need the following items to assemble the full hanger set:<br/> 4x Drywall Screws 6X1 1/4"<br/> 2x 3M 10mm screws<br/> 2x 3M nuts (Nylon lock nuts recommended)<br/> 1x 3M 25-30 mm screw<br/> 1X <a href="https://www.amazon.com/gp/product/B07MGLJ48M/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&amp;psc=1">PC4-M10 Fittings Male Straight Pneumatic PEFE Tube Push in Quick Fitting</a></p>