I still haven't tackled the 'motion plate x 2' modification as yet, I thought I would refresh my memory on some of the do's n dont's with the mill, as I would hate to stuff the motion plates through a simple mistake, so I set about making 4 of these for the tender
material required was not available so I used a length of 1/2" square BMS, marked it out for the holes etc
then transferred the holes by moving the template along the 1/2" square bar, note that I pegged it so it couldn't move
clamped the bar on the table and milled it down to 5/16" (0.312") as the bar had to be 1/2" x 5/16"
then cut the bar at the points marked out, more marking out required, then using a 3/8"dia 4 flute end mill
and after some time 3 links were machined, with one to go
the next task was to determine the radius on the ends, I decided on a 1/4" radius, and marked them out to reflect that
1 down 3 to go, but on each link there is 4 faces to be milled, I have finished 2, my back is a little weary from bending over
and peering at the end mill and bringing the cutter down approx 0.005" at a time
the X denotes the rear face of the link, anyway that's been part of my day cheers Dennis