Just a quick update: Im currently way behind my time shedule, i was a bit distracted setting up my new workstation and the Extruder turned out to be really tricky in detail. Anyway im close to finish with the 4. Iteration and will upload the new source files soon. What you see here is a modificated Bondtech BMG with a custom Waterblock/Tool changer and Belt fixtures (basically 90% of the X-Axis)

Custom Waterblock, its a very waterblock with two fron holes and one cross hole which get sealed with two grubscrews.

The magnet side of the Waterblock, tools will be attached to the block and hopefully cooled enough just by contact. Magnets are inset .1 so they are permanently pulling.

Hose adapter and water block for the Extruder in one Part.