Milling machine - video

[tonyfoale]

Today I noticed that wiggle in knee got worse, I thought it's time to tighten the Z axis gib and it went to the end of its motion range. Absolutely catastrophe. I was fully aware that steel on steel guides will not last very long but I wasn't expected that happen that quickly.

X and Y axis guides looks still very good. Only Z axis got literally plowed. I don't know what to do. Buying HGR linear guide sounds like only reasonable option because even after remachining all this will probably repeat quickly.

I did some calculation in HIWIN linear guide configurator software and HGR 20 should be enough.

Several months back I changed the X axis dovetails on my lathe to linear ball rails. I would highly recommend it. I wish my BP mill had them.
There are some videos in this playlist https://www.youtube.com/playlist?lis...JVwwFANxyTc2Kj