SC4 New Compound

This has been a great success. Also having the three holes for the toolpost is good for rigidity when using a parting tool (you can move the tool within the footprint of the compound to avoid tilting).

However there is a fair old amount of backlash due to using the original leadscrew/mount. Either a shim is required or even better would be a change to using dual bearings in a similar way that I did on the C2A mod.