Ahoi!
Again a little filler-project, until I start with the next big one...
A friend of mine handed me a piece of angle section, made from cast iron and pre machined to size, a few years ago. Since then it sat under the bench of my lathe, but today it droped on my toes...that was a sign to start machining it, and make a precise angle plate out of it..
Thats the piece in its raw, toe-crushing shape:

Its not realy square:

I decided to start with the mounting holes and slots, and machine it square on the shaper after that is done.
Pre drilling all the holes and the ends of the slots, to make plunging with the roughing endmill easier:

Mounting holes (They will be tapped with metric M8 threads) and the slots finished:

Added a little chamfer to the holes and slots:

Drilling the mounting holes in the other side of the angle, the hole pattern matches the t-slots of my mill and the lathes cross slide:

Machining done so far:

Next step is to mount it on the shaper, and make it square

greetings
Stefan