螺壳形态实验室

导出的是哪一枚？就是屏幕上这一枚：形状、规则编号和初值都一样。尺寸指最长边；壁厚 1.6 mm 约等于 0.4 mm 喷嘴走 4 圈。

The file is exactly the shell on screen: same shape, rule and starting row. Size is the longest side; a 1.6 mm wall is about four lines of a 0.4 mm nozzle.

三种方式怎么选　纯形态：最简单，任何 3D 打印机都行。浮雕花纹：一卷耗材就能摸到花纹，推荐。双色花纹：最像屏幕，最好用双喷头 3D 打印机。比 3D 打印精度还细的花纹（浮雕约 0.7 mm、双色约 0.8 mm）会自动简化：大块的图案保留下来，碎点去掉。

Shape only is simplest; relief gives a pattern you can feel with one filament (recommended); two colours look most like the screen, best on a dual-nozzle printer. Pattern finer than the printer can draw is simplified: large shapes stay, specks go.

零废料的双色效果　用浅色耗材 3D 打印浮雕版，再用深色丙烯颜料干刷，或用马克笔轻扫凸起的格子，花纹就出来了。只用一卷耗材，也很适合做亲子工作坊。

Zero-waste two-tone: print the relief in a light filament, then dry-brush the raised cells with dark acrylic or a marker. One filament, and a good family workshop.

双色怎样少浪费　① 首选双喷头 3D 打印机（如拓竹 H2D）：两种颜色各用一个喷头，不用来回冲刷。② 单喷头加 AMS 的机型也会自动换色，但每次换色都要冲掉一段料，花纹越细、越高，冲刷越多。可以一盘多打几枚，冲刷次数不变，分到每一枚就少了；在 Bambu Studio 里把冲刷体积（Flushing volumes）的倍数调到 0.5–0.6；或在平台上加一个不在乎颜色的小物件，右键选冲刷选项（Flush options），勾选“冲刷到此对象”（Flush into this object），废料就变成那个小物件（需要开启擦料塔 Prime tower）。③ 尺寸小一些、放得平一些，需要换色的层数也少。

Best on a dual-nozzle printer (e.g. Bambu H2D): one colour per nozzle, no purging back and forth. Single-nozzle printers with an AMS switch automatically but purge at every change: print several shells on one plate (same number of changes, shared), set the flushing multiplier to 0.5–0.6, or flush into a colour-doesn't-matter object (needs the prime tower). Smaller and flatter also means fewer changes.

在 Bambu Studio 里　把文件拖进去。双色文件会弹出颜色匹配窗口，把两种颜色分别对应到两卷耗材。然后用“放平”（Lay on face）选一个稳的底面，开启自动支撑，切片，开始 3D 打印。鲍螺、笠螺、蛤开口朝下最容易 3D 打印；鹦鹉螺和解旋螺悬空多，可以沿卷曲平面切成两半再 3D 打印。

In Bambu Studio: drag the file in; for two colours, match each colour to a filament in the import dialog. Lay it on a stable face, turn supports on, slice. Abalone, limpet and clam print best opening-down; the nautilus and the uncoiled shell are easier cut in half along the coiling plane.