# SV06 Hot End and small roll filament packages

**URL:** <https://forum.sovol3d.com/t/sv06-hot-end-and-small-roll-filament-packages/1085>\
**Category:** Sovol SV06 Fully Open Source 3D Printer\
**Created:** [December 22, 2022, 6:41pm UTC](https://forum.sovol3d.com/t/sv06-hot-end-and-small-roll-filament-packages/1085 "2022-12-22T18:41:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Timpraetor](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/timpraetor/32/268_2.png) [@Timpraetor](https://forum.sovol3d.com/u/Timpraetor)\
**Post date:** [December 22, 2022, 6:41pm UTC](https://forum.sovol3d.com/t/sv06-hot-end-and-small-roll-filament-packages/1085/1 "2022-12-22T18:41:11Z")

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I’ve uncovered a problem and it’s solution when using 250gm spools of filament.

Because of the relatively tight curve of the windings, the filament comes off the spool with quite a curve. This results in the filament not feeding into the direct drive unit successfully. At first, I thought that this was related to the slick-ness of the filament being used, so I use seom 600 grit sandpaper to rough up the outer surface of the first 6" or so. This works well as one solution.

However, I then received a 1kg roll of the same manufacturer’s PLA and it loaded with no issues. I started digging in and found comments elsewhere about the curvature of the smaller spools and a tip that simply straightening the first 2"-3" of filament would also resolve this (thanks to Aurora Tech, [OnlyBenchies.com](http://OnlyBenchies.com), and ModBot). Sure enough, comparing the filament off of a 250gm spool against the filament from the 1kg spool very quickly demonstrated the curvature difference.

So, sandpaper goes back in my kit and 250gm rolls now have a place in my materials list.

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**Author:** ![sovol3delger](https://avatars.discourse-cdn.com/v4/letter/s/4bbf92/32.png) [@sovol3delger](https://forum.sovol3d.com/u/sovol3delger)\
**Post date:** [December 23, 2022, 7:19pm UTC](https://forum.sovol3d.com/t/sv06-hot-end-and-small-roll-filament-packages/1085/2 "2022-12-23T19:19:48Z")

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Hi Tim,

Have you tried tweaking the following knob?

![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/1X/a0cd69c8599955941bbea206ab60176d2826b684.jpeg)

Mine wasnt gripping the PLA hard enough and just stopped feeding it through until I tightened it slightly. Seems it was way too lose when it left the factory. After rightening it a little (not a huge amount) I ended up with much better results.

Regards

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**Author:** ![Timpraetor](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/timpraetor/32/268_2.png) [@Timpraetor](https://forum.sovol3d.com/u/Timpraetor)\
**Post date:** [December 23, 2022, 10:46pm UTC](https://forum.sovol3d.com/t/sv06-hot-end-and-small-roll-filament-packages/1085/3 "2022-12-23T22:46:08Z")

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I’ll look into that, as well. That may explain what both Aurora and I witnessed.

Now, to replace that PEI mat … 😭

Merry Christmas,  
Tim