This alteration  I have seen in an  article

On one of the hobby Machinist websites.

Beefing up the milling machine column to make the existing machine more accurate and give it a more solid feel when using it with an maximum permissible end mill or fly cutter.

Picture on the left top the two plates that will replace the existing washer . They will be bolted over the pivot point of the column , then bolted with two M10 cap head screws in to the holes I will be  drilling and tapping in the machine base.

left bottom picture and right hand side picture Machining the stiffening plates those that will be fitted to  the column, using the lathe and the home made  fly cutter in the milling machine..

Picture on the left made two 60 x 10 x 300 mm strips drilled and tappet to take m10 allen cap screws and bolted it to the bottom frame hope fully this will give it ample support  on my wooden workshop top.

Picture on the right the original washer removed  the new washer and support plate  bolted to the back of the milling machine securing the column.