90W Laser Cutter From Scratch | Smoke Eater

All laser cutters must have adequate ventilation for the fumes and smoke that they will produce. CO2 laser cutters produce smoke and fumes that can be hazardous to breathe. And since this laser cutter is in my basement, I will need to be extra careful about adequate ventilation. For these reasons, I'm taking the extra step of adding an active carbon filtration system before venting the exhaust out of a basement window. The activated carbon filter should also help with the smell associated with cutting wood on the laser cutter.

As part of my laser cutter's cabinet design, I included a chamber that will house the filtering system. This chamber will contain an air filter for large particles and an active carbon filter for smoke filtration. Two fans will draw air through the top of the cabinet. It will then pass through the air filter into the chamber to pass through the carbon filter before leaving through the window.

I first made a template to mount two 3D printed brackets to hold the carbon filter. I drilled holes and added brass inserts into the cabinet before mounting the brackets.

Next, I taped up the gaps around the smoke eater chamber. I used black duct tape that I measured and cut to length. I considered using something like a silicone sealant instead but decided that tape would be adequate for this job.

I designed a top lid and base for the air filter in Fusion 360 before cutting these parts on the Shapeoko out of 3/4" MDF. I painted these parts to match the cabinet. I cut to length three 1/4-20 threaded rods that will secure the air filter in place once the base fastens to the cabinet. I mounted the air filter base to the cabinet with wood screws and then attached the top with 1/4-20 wing nuts. I added one half of a Dryer Dock to the top lid. To finish off the air filter install, I designed, and 3D printed a magnetic hose adapter. I attached the dryer hose and the second part of the Dryer Dock to this adapter and installed it in the cabinet.

Next, I moved on to the carbon filter. I designed and cut a plug out of 3/4" MDF to fit the carbon filter's opening. I drilled pilot holes and used wood screws to secure the fitting in place. I then used another Dryer Dock in the plug to make the carbon filter detachable.

The last step in the build was to create a window for the front opening. Again I used Fusion 360 to design the window and used the Shapeoko to cut the piece from a 4mm acrylic sheet. I used the 2020 T-Slot aluminum extrusion to build a frame for the window. To create an airtight seal for the chamber, I added foam tape around the edges and cut away the excess. I then installed the frame in the opening using 2020 corner brackets and wood screws. The final step was to add 3D printed handles to the acrylic window and install the window on the frame with M5 bolts.

I'm delighted with the way the smoke eater turned out! A quick test reassured me that there are good airflow and pressure through the system. I will have to wait until the laser's completion before giving it a real test, but mission accomplished for now!

👇🏻 I MADE A NEW VERSION OF THE SMOKE EATER!! 👇🏻

---- SMOKE EATER V2: https://youtu.be/mzHcIN_LcMc ----

Carbon Filter: https://www.amazon.com/gp/product/B07VHGH9YB
Air Filter: https://www.amazon.com/gp/product/B07CMGFK7D

🎬 CABINET PART ONE: https://youtu.be/A_JbFhbtPRQ
🎬 CABINET PART TWO: https://youtu.be/A2BxexjNvyg

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📜 PLANS AND DOCS

Further Fabrication: https://www.youtube.com/channel/UCZ72zDm2feverqV7qAbNH7Q

🤖 3D PRINTED PARTS AND FILES

Thingiverse: https://www.thingiverse.com/thing:4750178

📦 ITEMS I USED IN THIS VIDEO

As an Amazon Associate, I earn from qualifying purchases. I get commissions for purchases made through links in this post. They help me to be able to create more content for you. Thank you for your support!

Dryer Dock: https://amzn.to/3akpYtA
6-Inch Inline Fan: https://amzn.to/37jzkE1
4-Inch Inline Fan: https://amzn.to/3jQV9zK
Dryer Hose: https://amzn.to/3dhCtIm
Duct Clamps: https://amzn.to/3u0z2vs
Air Filter: https://amzn.to/3dfIjJX
Carbon Filter: https://amzn.to/37jjMzZ

Видео 90W Laser Cutter From Scratch | Smoke Eater канала A.C. Wright