Core One Rear Vent Magnetic Ducting System

Core One venting options for all situations
 

Parts List before you go further 

• 8x (or more) 6x4mm Magnets (if using magnetic quick connects)
• 4x M3 10mm cap head bolts to join onto the rear of the Core One
• Superglue if you want to permanently assemble parts (PLEASE take care!) 

Love my Core One but I wanted a robust system to bring the exhaust air to my air filter (AlveoONE). It spawned this project which has expanded (and still is expanding) with a range of options using standard 100mm flexi ducting. I am constantly working to tweak and improve, please let me know if you have ideas or need any different things. 

Notes!

The system is based around 100mm flexi ducting, this seems to be the most common size. This may well be listed as 4” if you are in America. It should all be compatible. 

There are 3 versions of the rear mount for the Core One. All of them just need 4x 10mm M3 cap head bolts to secure to the back of the printer. 

The Rear Vent Mount is seen in the picture above, and has holes to allow you to fit magnets so you can rapidly remove or disconnect a hose or other parts. The one with a lip is the same, but… with a lip! This adds a lot more security since it has to be rotated to remove and it can’t just be pushed off. The final version directly mounts to the 100mm ducting, this is great if you want a more secure connection. 

There is a 100mm ducting adaptor. This can fit magnets and then is easy to attach to the ducting. 

I have now also included two adaptors that fit into 120mm fans. This came from designing something to allow me to attach the ducting to the AlveoONE. They would need securing with bolts through the fan, or similar methods. They can attach to any 120mm fan with the right hardware.

Angles! Obviously we all like a curve, I wanted to add parts to do this. The 22.5 degree sections print without supports and have a lot of flexibility. They all feature lots of pegs (8x and 7x on the inner) allowing a ton of options to secure in place. The idea being you can use the 6mm pegs and glue them to form any curved part of ducting you need, then simply add an adaptor on the end. There is another version with 4mm added to the base to allow it to fit properly into a lipped mount. 

I have designed and tested a 6mm pin that works well to help secure parts, but it is mostly designed to orientate parts so you can glue them permanently in place. 

The 100mm toothed clip came about as I had no large jubilee clips. I have now tested this and it works really well. May be better printed from something else, so far I have only used PLA. 

Added the pipe extensions. They are very pleasing. 50/100/200mm 

Printing! 

I printed all these on the Core One in 0.2 or 0.25mm layer height default speed profiles with the 0.4 high flow nozzle in PLA. 

They are all designed to print without any supports/brim. 5-15% infill (to taste) 

Assembly tips. 

I am using 6x4mm (6mm wide, 4mm deep) Neodymium magnets. I think N52. I wanted to use something with enough strength so that the connector wouldn't come apart if knocked, but can be easily removed by twisting. 

The holes for the magnets are 4.1mm deep in the design so there should be a little room for them to get pushed in flush. BE SURE TO CHECK you put them in correctly so the parts join. The ducting connectors have holes to push the magnets out should you have a whoops, but the rear mount does not. 

The Rear Vent Mount is attached to the Core One with 5x 10mm cap head M3 screws

Use the pins to assemble curved parts to glue, realistically you only need two pins max, they are there to help align things. Make sure to put a bead of glue round the entire join to seal it nicely. 

Design Notes

The hole pattern on the Core One seems to be 142x66mm, contrary to another guide I found. I can't be 100% on this. 

The Quick Connect pattern I made is 100mm inner, 120mm outer with 6mm holes spread out evenly on the face at 55mm from the centre (4x for these, but using 8x holes for angle parts I am building) 

Link to short video showing the connector being… connected… 

I take no responsibility for any issues/damage/shenanigans that come from this. But please comment/reach out for design tweaks or changes, or other versions.