DC42 Dual IR Sensor Kraken Effector Mount Design and Magnetic Bed Plate Coupling Design Update

Hey guys, this will be a relatively short update on the M8K-X build.

So pictured above is the brand new mount I designed to accommodate DC42’s Dual IR Sensor to my custom Kraken effector. I had to designed a push-in and clamp style mount because there isn’t that much free space on the effector as  it is designed to auto-tool change and thus the Kraken requires a lot of space for its kinematic mounts. Instead of integrating it into the effector which would make printing extremely difficult, I separated it into its own piece. Utilizing the hole mounts that are primarily used for securing the magnets to the effector I am able to also create a mounting position for the IR sensor that is as close as possible to the Kraken hotend without being adhered to it.

The effector itself has a hole cut out for the 3 Pin connector required to power the sensor, however, some minor adjustments will need to be made in positioning, as the hole now is completely centered and will collide with one of the kinematic mount arms.

A U shaped cutout was included so that access of the the magnetic capabilities of the effector can still be used in the case of the jamming gripper tool.

In addition to the IR sensor mount, I also modified the bed mounts to have a 4 point magnetic mounting system.

Previously, the bed bolted straight into the mounts into the frame, which, made it sturdy, but very difficult to access the electronics below. So instead, I redesigned the mount to also utilize the magnet mount normally used to provide the Kelvin Kinematic Coupling on the Kraken Effector. This is so that I don’t have to design an additional part if it wasn’t necessary. The bottom left shows the magnetic mount and on the right is what it would look like when the 10mm threaded steel ball was placed onto the mount. The bed has 4 screw holes and thus can easily be attached in this manner. However, the kinematic coupling system was designed to be a 3 point attachment, and thus this arrangement will be overconstrained. We’ll see if it will be still usable.