Sieg X2 Z-axis Fine Feed knob

wanting to have more ease of use of the Z axis knob
saw an example of extension over the original knob on YouTube (Guy Marsden)
made one integrated

included are a step file for remaking in say alu
and one for printing at 100% infill, so you can drill your own holes anywhere

Front holes are 4mm for heat insert or M5 tapping
mounting hole is 3.2mm for the grub screw or M4 tapping
middle hole is 8mm for the axle

And, now https://www.printables.com/@BalazsVaci_315451 made an updated version: adding knurling pattern to the side, made a bit bigger fillets and created a separate knob cover plate - including markings with UP & DAWN with curved arrows, to share here also, see the extra images and files.