Christmas tree mold / 圣诞树模具

This is a mold for recycling 3D printing waste (PLA) to create a simple Christmas tree. It can recycle 21g of PLA at a time. It is recommended to print the mold using PETG-CF. (If you have experience with ASA and ABS printing, they are also excellent materials for making the mold, with minimal thermal deformation during use.)

Tools Needed:

• Oven
• 3M respirator
• Silicone baking mat
• 2 G-clamps
• 1 M3 screw (used as an ejection pin)
• Flathead screwdriver
• Hammer

Manufacturing Process:

1. Place 21g of PLA into the oven and heat at 210°C for about 10 minutes.
2. Clamp the mold tightly using the G-clamps.

3. Pour the molten plastic into the mold and insert the piston. Apply firm pressure (or step on the piston) for about 20 seconds, then let it rest for 1 minute. Apply pressure again for 20 seconds to prevent defects caused by material shrinkage.

4. After about 5 minutes, open the mold with a flathead screwdriver and use the M3 screw as an ejection pin to remove the part.
5. Remove any excess material and sand the edges smooth.

这是一个回收3D打印废料（PLA）制作简易圣诞树的模具，它一次可以回收21g PLA。推荐使用PETG-CF打印模具。（如果你有ASA与ABS的打印经验，它们也非常适合制作模具，并且在使用过程中基本不产生热形变。）

需要的工具： 烤箱，3M防毒面罩，硅胶烤盘，G型夹（2个），M3 螺丝（1个，作为脱模顶针），平起子，锤子。

制作流程：

1，把21克PLA，放入烤箱，210℃加热约10分钟。

2，把模具用G型夹锁紧。

3，把熔化的塑料放入模具，插入活塞。用力按压或踩下活塞约20秒，静置约1分钟，用力按压或踩下活塞约20秒。（两次施加压力可以避免因材料收缩产生的缺陷）

4，约5分钟后，用平起子打开模具，并用M3螺丝作为顶针脱模。

5，去除毛边，用砂纸打磨