Tool Mount
I made accurate measurements of the Proxxon IB/E tool. So, I designed the mounting parts to connect the tool to the Z-axis sub-frame. It's a little overbuilt (and can be even more overbuilt, if necessary), but the idea is to keep all vibration down to next to nothing. Making the tool mount relatively heavy gives it a lot of inertia to absorb vibration from the tool (that's what my limited memory of structural dynamics tells me). I can also machine a very thin plastic bushing if necessary.
I'm also going to hack out some plastic frames for experimental mounting of other tools. I'd like to eventually expand to hot-wire cutting polystyrene (for Lost Foam Casting), low-power laser cutting/engraving, and LIDAR scanning.