What is involved with fitting a Bosch Colt?

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I would check out this thread:

M4 Router Be Gone (installed the spindle)

And here’s the step file for the clamp wedge. Note that you will need to use your slicing software to pause the 3d print at the correct layer to insert the nut. ClampWedge.stp (184.9 KB)

I think there is a fair bit of relevant information there which might be helpful