- Joined
- Dec 3, 2013
- Messages
- 1,849
Not a very interesting project but it was pushing the limits of the mill and I enjoy unusual setups.
The parts are 3" x 3" x 0.5" 6061 extruded angle, 78" long. The length was matched to an existing part with a known dimension since I have no way of accurately measuring 78" to (+- 0.005"). I did a total of (4) parts by stacking and drilling (2) parts at one time. The extruded is not particularly straight so it took some strategic clamping and measuring to keep the tolerances. (39) holes were drilled on each face. The pattern repeats every 15" so one of the first is drilled deep into a block below and an index pin used to preposition the stock for the subsequent holes.
J~
The parts are 3" x 3" x 0.5" 6061 extruded angle, 78" long. The length was matched to an existing part with a known dimension since I have no way of accurately measuring 78" to (+- 0.005"). I did a total of (4) parts by stacking and drilling (2) parts at one time. The extruded is not particularly straight so it took some strategic clamping and measuring to keep the tolerances. (39) holes were drilled on each face. The pattern repeats every 15" so one of the first is drilled deep into a block below and an index pin used to preposition the stock for the subsequent holes.
J~