@fritter63 MB40 vacuum base is eye opening. But as said in the thread, vacuum holding with a vacshop does not provide enough force to hold the drill and its base.
Looking around, vacuum bases do exist for drilling concrete, but AFAIK, no woodworking oriented base exists. So I decided to design one. The enclosed video confirmed that vacuum holding power is far larger than vacshop but works if and only if there is absolutely no air leak. I realized during testing that even the MDF on the MFT3 is actually porous and leak.
Also, 3d printed O-ring mode of TPU does not work at that pressure level, at least with typical 90 Shore A hardness TPU. New to O-ring designs, I could not reach a proper seal either with the recommended groove designs. I resorted to glueing the rubber seal to the part, as done by another 3d printed CNC hold project.
3D Printing air tight parts is an issue. While prints looked solid, most were leaking as well. Following water-tight recommendation, thin layer, and orientation change worked, but printing the base was now 22h long. After wasting a lot of filament, but learning a lot I was finally able to add a vacuum base for my makita drill to the festool vac pump!
Looking around, vacuum bases do exist for drilling concrete, but AFAIK, no woodworking oriented base exists. So I decided to design one. The enclosed video confirmed that vacuum holding power is far larger than vacshop but works if and only if there is absolutely no air leak. I realized during testing that even the MDF on the MFT3 is actually porous and leak.
Also, 3d printed O-ring mode of TPU does not work at that pressure level, at least with typical 90 Shore A hardness TPU. New to O-ring designs, I could not reach a proper seal either with the recommended groove designs. I resorted to glueing the rubber seal to the part, as done by another 3d printed CNC hold project.
3D Printing air tight parts is an issue. While prints looked solid, most were leaking as well. Following water-tight recommendation, thin layer, and orientation change worked, but printing the base was now 22h long. After wasting a lot of filament, but learning a lot I was finally able to add a vacuum base for my makita drill to the festool vac pump!
