Universal Air Assist for Diode Laser Cutter / Engraver

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4813009.

I wanted to add an Air Assist to my Ortur Laser Master but didn't want to have to buy something expensive. I have an airbrush compressor on hand so I decided to use that and included a cap that screws onto the compressor. If you wanted to use a fish tank compressor with a tube you can add a different cap. Once I find a tube I'll make an additional cap attachment. I designed this to attach directly to the laser diode so it should be compatible with most laser diode systems.

Update 5-19-2021: Added an angled (less phallic) version Additional Parts Needed:

• Standard Metal Straw, bent or straight (available for under $2)
• 2 rubber bands
• 2 zip ties (optional)

Printing Tips:

Cura has an experimental option to make overhangs printable which is what I used for the hose screw. Pictured in the images above. I printed the air hose on its side with no supports. It was a little tight going on so I used a heat gun to soften it a bit and it went on fine.

Assembly:

Image instructions are included above.

1. Slide 2 clips onto the straw and attach the air part and hose connector to each end.
2. Move one clip next to the air piece and the other a couple of inches over.
3. When inserted into the gaps in the laser module one clip should rest next to the upper bound of the laser and the lower one should be at the bottom of the laser. This provides stability during movement to prevent the assembly to tilt.
4. To prevent the staw from slipping down during movement you can tighten the clips using zip ties.
5. Attach the assembly to the laser module using the rubber bands. You can position this anywhere on the laser module you like. I have found that positioning it near the back right will not interfere with the natural homing of the laser.
6. Looping the rubber bands below the clips will apply upward pressure which will keep the assembly secure and prevent slipping.
7. Attach your hose to the top. If you want to suspend the hose from above then use a straight straw. If you want the hose to follow the cable then use a bent straw and angle it in that direction to avoid kinking the hose.