M3D Filament Guide V.3 (Angled)

by carlleewilson, published

M3D Filament Guide V.3 (Angled) by carlleewilson May 9, 2015
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Version 3 of the M3D filament guide. I wanted to see if the purely vertical version or an angled version worked better, but then had some minor issues with the filament not sliding smoothly through the opening. Not wanting to give up on the idea, I took another few passes and came up with this.

A simple side hook filament guide for the M3D micro printer. If you are using the M3D initial spool (from the M3D download section), this will reduce the drag of the filament over the side of the chassis and the spool holder hook.

The opening for the filament in the guide is designed to allow the filament to enter and exit the filament guide at a range of angles. This should reduce the amount of friction and all for smoother delivery of filament to the extruder.

UPDATE: I am working on an updated version based on the feedback from a few helpful users. The next version should be able slide more smoothly along the frame rails as well as have a small change to the filament pathway. Thanks to tadd85 and FireFox_Gaming for their feedback.


I took some measurements with some digital calipers and a few tries later had the general shape for the M3D chassis hook. Since I didn't like the way the filament was riding along the side of the chassis with the default spool holder, I made the vertical version, a simple angled version, and now this one. I modified the opening to make sure that the filament would be able to slide through a little easier (without filing) from multiple angles.

I hope you find one of them useful.

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Is this for a M3D Micro or PRO?
I guess now we should specify with new parts coming out and the two being different size...

One recommendation: Round the edges that sit on the printer so it can slide to ease tension. Normally the filament moves freely but when aligned with the edge the guide is on, the extra tension tries to move the guide a few millimeters - which in my case would be desired as I use larger rolls of filament mounted below the desk due to space issues.

Great suggestion! I am working on an updated version and will get it posted. I've noticed the jumping along the frame, but just hadn't done anything to correct it. Thanks for getting me going on a solution. I'll comment here again with the link to the new version when I get it uploaded.

this will not work for long

Thanks for the feedback. Is there anything you would suggest I do differently?

this is really nice! thanks!

For anyone making one of these. It works well for me, but I also took the additional step of filing the opening a small amount to take off any abnormalities from printing. Since doing that, it has been working flawlessly for me. If you have an issue with it, please let me know. I'll be happy to iterate on it more and try to resolve any design issues.

Hope you all find it useful.

it needs to be more durable at the hole

I am working on an updated version that should slide more smoothly along the frame as the print head moves. Along with that change I am looking at some modifications to the opening for the filament. Has your version had any other issues I could try to address?

Any thoughts on strengthening it? Maybe thicken the wall and extend the angled area outward? i want to maintain it's ability to handle filament entering from any of 15 angles that make up the entry and exit paths.

Please let me know what specifics you would be interested in.