Y缝计算器 💎

计算Y缝块裁剪尺寸，包括60°钻石和积木块的布条宽度、钻石长度和三色布料用量。

How to Use the Y-Seam Calculator

Enter the finished size of one diamond side and the number of Tumbling Blocks you need. The calculator gives you the strip cut width and diamond cut length for 60° diamonds.

Cut fabric strips to the strip width, then use a 60° ruler to cut diamonds at the diamond length. The three colors (dark, medium, light) create the 3D cube illusion in Tumbling Block quilts.

Y-seams require stopping your stitch at the seam allowance dot, not at the fabric edge. Practice on scrap fabric first. Press seams carefully — Y-seams can distort if pressed incorrectly.

常见问题

拼布中的Y字缝是什么？

Y字缝又称嵌入缝，出现在三片布料于一点相遇、形成Y字形的地方。它们无法以连续的一条线缝合，需要在转向前于缝份交叉处停下。

哪些图案使用Y字缝？

Y字缝是孤星、祖母花园、宝宝积木（翻滚块）以及许多以六边形为基础的设计所必需的。任何带有60度或45度菱形的图案通常都需要Y字缝。

我如何标记Y字缝的停止点？

缝合前用珠针或布用记号笔标出缝线交叉点（在角上距每个毛边1/4英寸处）。在此标记处准确停针并回针固定，然后再转向缝下一条缝。