# Best cheap open source Filament changer/AMS

**URL:** <https://forum.sovol3d.com/t/best-cheap-open-source-filament-changer-ams/8204>\
**Category:** FDM 3D Printing\
**Created:** [July 6, 2025, 10:34pm UTC](https://forum.sovol3d.com/t/best-cheap-open-source-filament-changer-ams/8204 "2025-07-06T22:34:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fezbunny](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/fezbunny/32/3563_2.png) [@Fezbunny](https://forum.sovol3d.com/u/Fezbunny)\
**Post date:** [July 6, 2025, 10:34pm UTC](https://forum.sovol3d.com/t/best-cheap-open-source-filament-changer-ams/8204/1 "2025-07-06T22:34:04Z")

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Hi so i have a Sovol SV07 and was wanting some multi color capabilities and was wondering what kit would be the best bang for my buck under 100$  
any help would be apricated 🙂

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**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\
**Post date:** [July 6, 2025, 10:39pm UTC](https://forum.sovol3d.com/t/best-cheap-open-source-filament-changer-ams/8204/2 "2025-07-06T22:39:24Z")

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I don’t think you can buy a unit for under $100.  
Most kits now would require you to replace the hotend and/or the extruder.

Sovol is working on a unit, it should be released buy the end of the year.

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**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\
**Post date:** [July 7, 2025, 1:35am UTC](https://forum.sovol3d.com/t/best-cheap-open-source-filament-changer-ams/8204/3 "2025-07-07T01:35:35Z")

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$100 is NOT going to fund a robust reliable changer that you can set and walk away from.

A hardware kit for the ERCF V2 (Enraged Rabbit Project) is about $125 but you’ll burn through A couple rolls of filament and without a doubt another $25-50 for parts not in the kit.

The [3DChameleon](https://github.com/3DChameleon/3DChameleonMk4) is open source and could probably be built for $100 if you delete the the custom circuit board and replace it with a RPi Nano with 2 motor drivers. You’d have to add it as a separate MCU and write all the macros to make it work with Klipper.

> **[How to Convert Your Printer to a Multicolor 3D Printer](https://kingroon.com/blogs/3d-print-101/how-to-convert-your-fdm-printer-to-a-multi-filament-multi-color-system)**
>
> 3D printing enthusiasts often seek ways to expand the capabilities of their FDM (Fused Deposition Modeling) printers. One of the most exciting upgrades is enabling multicolor printing, which involves feeding multiple filaments into the printer to...