H2D exhaust duct

Bambu Lab H2 Series Bambu Lab H2D
1

Good afternoon

I have a simple question regarding my H2D. I want to start using higher temperature/technical materials and realise that many of you in the community have designed/made custom exhaust duct systems for ventilating to atmosphere. I plan to use ABS GF for my particular geographic location due to summer temperatures and high UV. Does anyone have the exhaust port and screw hole dimensions so that I can start creating this ducting for my machine? I have tried to find this geometry, but as yet not actually found the casing/hole dimensions. I do realise that these are something like M3 self threading or similar, however, I could really do with some existing knowledge before winding the incorrect screws into my new machine. Iā€™m sure you understand. Thanks in advance for any info.

Andy

2

Please be aware for high temp filaments like ABS the unit doesnā€™t exhaust. It recirculates the heated air through the carbon filter.

Personally I wouldnā€™t want it next to me when printing abs.

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3

Thanks. Youā€™re correct, I donā€™t fancy the idea of fumes either. I use a lot of PLA, the machine is next to a window for ambient venting. But this is not a real solution. Any suggestions of alternative materials is appreciated.

4

ASA is known to handle UV better and produce relatively less fumes. Itā€™s hard to reccomend a solution without knowing the environment and application you are going for.

5

Well, southern Europe. Lisbon. Right now weā€™re in the storm season thanks to the Atlantic. From March to November we get ambient temps from +20C right up to 45C and long summers. Iā€™ll need to dump the heat outside. As much as I can.

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So the part is going in-between the window and will be somewhat indoor and outdoor? Is it permanently affixed to your home or bearing weight?

If I am correct in my assumption and itā€™s not nailed to the house petg should be fine.

7

This is the adapter for the rear of the H2D. Iā€™ll use dryer duct (4ā€ / 100mm) and a proper exterior building outlet. Also, I see other vent grilles on the rear. Are these intakes for the power supply or filter exhaust ports? I can design a manifolding system if this is the case. What I really need is the machine casing / hole dimensions. Do you know if they exist from Bambu or a reliable set of them here?

edit - I can also use an in-line axial fan if it helps extraction.

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This is the exhaust.

There are a lot of models on maker world you can rip the dimensions off as wellā€¦ better then me fumbling a caliper.

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Thanks for this. I appreciate the effort of sending me the measurements. I will suggest to Bambu to put factory dimensions available for the many users who want to mod easily. I could ā€˜borrowā€™ a design from makerworld, but lots Iā€™ve seem are - erm - basic. Not criticising really, but itā€™ll be better if I made something with my experience. Iā€™ll share my machine pieces with the community, I was going to machine a billet of aluminium but this is overkill for this application - I will stick with a 3D print for this duct. Thanks for the help. :+1:

10

Good luck and happy printing.

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11

There are a bunch of H2D exhaust models in makerworld. With lings to the longer screws as well.

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