Mounted the drive dogs today and turned between centres to get the bottom, top face square and the extension totally cylindrical.
Might seem an obvious question but when you turned it between centres I'm assuming machined the 1 face, then did the body to make it cylindrical and then turned it round to machine the opposite face?
.....A rotary table is an extremely handy bit of kit for the mill. I have one and even though its worn, its great for cutting arcs and drilling pcd's.
My lathe is a Harrison M300, don't have a rotary table for the Mill yet but hoping my brother in law gets hold of one soon so I can borrow it
Its an odd design as the table looks to be a good size???That looks well tidy, can't believe how little the distance is between the spindle and table on the standard setup
Its an odd design as the table looks to be a good size???
Had to drill some 12mm holes in 10mm plate last week, with a drill chuck in the spindle and the 10mm plate in the vice there was not enough room to use a 12mm drill bit, had to clamp the plate to some 3/4 ply instead and even then it was tight
How rigid is the head mounting with the circular ram ZZR1200 ? Does it tend to cant with heavy cuts ?
Certainly makes it a lot more usable.View attachment 109897 View attachment 109898
The slotted table size is 30" x 7".
The x axis is 20" (although this can be increased)
The y axis is 8 1/2 ".
The ram tube pulls out about 6" so you could have effectively a y axis of approximately 14 1/2 ", provided the table surface is totally parallel with the rams centre line and trams perfectly.
With the extension spacer fitted (6 1/2" between the mounting surfaces) and the standard knee screw.
I now have a maximum distance between the table surface to a fully retracted quill of 19 1/2" with a minimum distance of 7 1/2" with the knee level with top of knees dovetails. The quill can also be dropped by 3 1/4".
Taking into consideration the type of tooling used on a mill, vice, r/table and tool holders the extension spacer is a necessity, compared the the standard mill.