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  • Users: Gilmiril
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  1. Gilmiril

    Tolerancing Double-Tapered Seal Ring

    I need help! I'm making a drawing for a centrally ribbed, double-tapered symmetrical seal ring, and I need advice for specifying geometric controls. The basic geometry is shown in the attached file, but basically its a hollow ring that's tapered on the OD on both ends and that has a rib on the...
  2. Gilmiril

    Using note callouts for holes with positional tolerances

    Our company has always called out hole patterns for flanges using leader notes such as: 1.25 DIA THRU 8 HOLES ON 8.00 DIA BC EQ SP AT 45 DEG APART That was for directly toleranced dimensions, but now we're switching to positional tolerancing for these. It seems to me that the dimensions for...
  3. Gilmiril

    Ring-Groove Concentricity for API Type 6B Flanges

    For Type 6B flanges, the current 20th edition of API 6A specifies that, "Ring groove shall be concentric with bore within 0,010 total indicator runout." Given that these R/RX ring grooves are dimensioned by pitch diameter (P), width (F), depth (E), and the angles of the sides walls (23 degrees...
  4. Gilmiril

    Leader elbows and text gaps.

    With Creo Elements/Pro 5.0, we use: drawing_text_height = 0.10 dim_text_gap = 0.50 leader_elbow_length = 0.20 Notes with leaders have leader elbows that are 0.20" long and nave no gap between the note text and the end of the leader elbow (i.e. dim_text_gap does not apply to notes). But...

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