Just a quick update as I tried my mill out properly for the first time this weekend.
A while back I bought a cheapo Indian made tilting rotary table. Mine doesn't have a Morse Taper (MT) hole in it and in hindsight I would recommend this feature as I had to dial in and centre the chuck using the four locating slots.
Needless to say everytime I had it aligned and tightened up the screws the darn thing would move! Took me three hours to centre it! Tempted to weld the thing in place now.
The table is actually good value for money and quite accurate but the etched dial is very inaccurate. I used a test piece and the slots looked dreadful. To get around this I measured the circumference of the table and made my own markings in Illustrator using a template. This paper strip is then help in place temporarily using double sided tape.
I made a sight marker too so that there's now little room for error. The red markers are for the 20 holes that I've still got to drill on the front of the brake drums.
Here's the first drum just about to have it's last couple of slots added (scuse my usual bad colour balance)
I'm rather chuffed with the final result - what do you guys think?
Just to make life really difficult Porsche decided to make the drums handed for either side, so I had to make two versions. From these two I will cast copies as I need to make four different versions. The front and back drums also differ so I will make a removable centre that will slot into each master thus giving me the 4 variations.
