Update: I was asked to add the small thumbwheel. I include the OpenSCAD design file and an STL. It is designed to hold an M3 Nyloc lock nut.

(To use the OpenSCAD file, you will need to include the Metric/M3.scad file. Source is here: https://github.com/b33j0r/Metric)

I like OpenSCAD. I came across this parametric bed bracket for my Hypercube Evolution project and printed it but then I realised I could make it work a bit better for my requirements.

I added a hole in the top to capture the bed spring and I extended the underside so that I could fit a 18mm diameter thumbwheel which would then allow me to easily make small adjustments to the bed height.

Thanks to ThatPlayer for the original design and idea.

I have included the OpenSCAD file. The STL is for a 27.5mm bracket. You will probably not want that. Please use the OpenSCAD file to get the length right for your build.