An end-mill (cope) shapes the end of the mullion itself so it sits tight against the frame. It
is written as a shape op (Rule Type 143 Add Op Hardware Etc.) at the mullion level and kept on the
mullion bar (Set Op on Level=? = 3), with one block for each end: X = 0 for the
start end and X = L plus an allowance for the far end. General rules:
How machining rules work.

Example C: both ends of a 3T4 T-bar mullion (series 3500 / 3501)

Sub-routine series 313 “3500/01 TBAR MILL”, rules 322–342, called from series 268
“3500” rule 262 (level Mullion). Every rule: Level Mullion, Position Vertical, Condition
None, Has Test ticked with one test: option “SERIES” = 3500 or 3501.

In plain English: To end-mill both ends of a vertical 3T4 T-bar mullion so it fits against the frame, the
rule runs EMT:2010 on the mullion bar (3T4 profiles only) at the start of the bar (X = 0), and
EMH:2010 at the far end (X = L + 7/32″), when the SERIES option is 3500 or 3501.

Rules 288–302 in the same sub-routine do the same for horizontal T-bars (Position Horizontal), with the
ends at X 0 and L+0.40625.

Build your own

1. Level Mullion (or Meeting Rail for a rail); Position Vertical or Horizontal; Condition
   None to mill every such bar, or L/T Out / R/B Out to mill only an end that meets the frame
   (L/T In / R/B In for an end that stops on another bar, which often needs a different cope).
2. Rule Type 143 Add Op Hardware Etc.; then Set Op on Level=? = 3 for a mullion
   (4 for a meeting rail).
3. Set Op if Side? = 1 for the start end, 2 for the far end, one block each.
4. Reference of the mullion profile; the end-mill pattern your machine uses; Set Op posX = 0
   or L plus the allowance the program needs (for example, 7/32″ vertical, 13/32″
   horizontal).
5. Add the same test to every rule if only some products get the cope.