Bambu Lab X1C BentoBox Air filter

prusaprinters

<p>UPDATE 29Sep2022</p><p>I have added an additional HEPA filter bracket to fit 82x40x15 filters from Amazon. Please measure your filter before printing the correct bracket.&nbsp;</p><p>&nbsp;</p><p>BentoBox is an air scrubber that sits inside the X1C/X1 chamber. It can be run:</p><ol><li>standalone with a separate 5V power source (get the 5V fans),&nbsp;</li><li>connected to Aux fan port (for X1) and enable the aux fan when printing. (24V)</li><li>or piggyback on the chamber fan (X1C) with a cable splitter. (24V)</li><li>connected to the AMS with the led light mods to turn on the lights and Bentobox manually at one go.&nbsp;</li></ol><h5>Wiring</h5><p>This is where I need the Bambulab community's help to showcase how BentoBox is wired to the printer. Please post your build on <a href="https://www.facebook.com/groups/bambulabofficialusers">Bambu Lab's Facebook group</a> or <a href="https://discord.com/channels/970163353542606888/982157468056559646">Discord</a> and share how you do it. The 40mm fans are meant to be run at full speed. Hence 2-pin 40mm fans with no feedback would suffice.&nbsp;</p><h5>Instructions&nbsp;</h5><p>It's 170x110x56mm in exterior dimension and sits on the right rear side of the chamber. There is an L-shaped slot at the base which helps alignment and a 2mm gap between the BentoBox and the walls of the printer. this is to allow the wiring and allows the use of a double-sided tape to secure it to the side wall.</p><p>The CARBON and HEPA Box uses magnets to stack onto the BentoBox.&nbsp;</p><p>I have designed the magnet holes to be 6.2x3.4mm. For some calibrate flow, you maybe able to press-fit the magnets into the hole. But if it's too loose, use some glue.&nbsp;</p><p>CARBON Box can hold roughly 250ml of activated carbon pellets. That should last 3-4 months of printing. <strong>Only use Acid-Free activated carbon pellets </strong>that are at least 3mm in diameter.&nbsp;</p><p>HEPA filter needs to be cut into 41x90mm rectangle with a max height of 25mm</p><p>Or u can get <a href="https://www.aliexpress.com/item/1005002687133564.html?spm=a2g0o.productlist.0.0.29cd4055S4ys4j&amp;algo_pvid=2e75652c-5fc6-4edc-bd28-18b53e445319&amp;algo_exp_id=2e75652c-5fc6-4edc-bd28-18b53e445319-6&amp;pdp_ext_f=%7B%22sku_id%22%3A%2212000025636988561%22%7D&amp;pdp_npi=2%40dis%21SGD%217.55%215.36%21%21%21%21%21%40210318c916627901229386495eab4a%2112000025636988561%21sea&amp;curPageLogUid=MHcj65WFGmNv">40x80x15 hepa filter</a> from Aliexpress. You will need to print “BB 804015 Hepa Bracket.stl” as a holding bracket.&nbsp;</p><p>It is better to stack in show orientation. Where the HEPA Box filters the large particles and the VOCs get caught in the CARBON Box.</p><p>The air movement coming out from the bottom should be a very gentle breeze. I would recommend 4020 or 4010(high pressure) fans that pull around 8.5cfm this will provide enough static pressure. Below are links to the GDSTime fans that I used.&nbsp;</p><p><a href="https://www.aliexpress.com/item/32727867521.html?spm=a2g0o.store_pc_groupList.8148356.1.4eea7e1fbQyMDO&amp;pdp_npi=2%40dis%21SGD%21SG%24%208.49%21SG%24%205.52%21%21%21%21%21%40210318bb16625656403603083e6ab7%2166707135929%21sh">4010 24V GDSTime 8.3cfm 75000rpm from Aliexpress</a>&nbsp;</p><p><a href="https://www.aliexpress.com/item/32769608982.html?spm=a2g0o.store_pc_groupList.8148356.3.782a7e1f2o83nX&amp;pdp_npi=2%40dis%21SGD%21SG%24%2010.87%21SG%24%207.07%21%21%21%21%21%40210318bb16625658822601771e6ac5%2166639444053%21sh">4020 24V GDSTime 9.0cfm 7000rpm from Aliexpress</a></p><h5>BOM</h5><ul><li>24pcs - 6x3mm magnets</li><li>4pcs - M3x8 screws</li><li>4pcs - M3xD4.6xL4 brass insert (if you print the brass insert version)</li><li>2pcs - 4010 / 4015 /4020 24V fan&nbsp;</li><li>4-8pcs - M3 screws to secure fans to bracket</li><li>Wires</li><li>Double-sided tape</li></ul><p>If you like my designs and want to contribute to my coffee addiction, a donation of $2 to <a href="https://ko-fi.com/thrutheframe">Ko-fi</a> or <a href="https://www.paypal.com/paypalme/shannonheng">paypal.me</a> will be greatly appreciated.&nbsp;</p><h5><strong>Caveat</strong></h5><p>As with all my designs, it may and may not work for you. So print and install at your own discretion.&nbsp;</p><p>&nbsp;</p>