Snapmaker J1 HEPA/Charcoal filter retrofit
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Utilizes J1 bracket holes as exhaust ports to filter air and optionally recirculate it. With Bowden tube pass-through.
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Model information
- Source
- Printables
- Category
- Other Printer Parts & Upgrades
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
By utilizing the two bracket holes at the back of the J1 Printer - one can create a dual-filtered exhaust using off-the-shelf HEPA/Charcoal filters. Additionally, by removing one filter, adding a rear duct, and turning one fan off one can recirculate the filtered air. A dual toggle switch holder is also part of the design for selection one or both fans (DPDT, ON-OFF-ON). The second switch (SPST ON-OFF) is for future expansion and enabling an in-line heater in recirculating the duct for ABS (still in progress).
The filter and fan adapters allow for a Bowden tube pass through thereby supporting several front-loading filament upgrades (including mine).
Learn more at the facebook post: https://www.facebook.com/groups/snapmakerj1/permalink/931088214598158/
The filters used are here: https://www.ebay.com/itm/173961383070
The o-ring used is here: https://www.amazon.com/dp/B0051XX616
(the o-ring goes between the fan and the fan adapter to reduce leaks and improve suction)
The fan used is here: https://www.amazon.com/dp/B00ZWAH1T6
If you want even more suction try this one: https://www.amazon.com/dp/B07L9HR4B4
Switches are Micro-toggle switches one is DPDT (ON-OFF-ON), the other is SPST (ON-OFF)
I printed it with Flashforge PLA Black and Silver. Sliced it with Luban with no supports, skirt adhesion, layer height=Medium, Speed=Medium and Structure=Thin.
The switch can be printed in two colors, if you like (see photos).
Please post photos of your makes. A lot of time goes into designing things like this, so posting a photo of your “make” is a way of showing appreciation.