改进了干燥箱卡料问题

除了3d打印件外，还需要：

1.气动接头PC4-01直通型；

2.定制亚克力板，厚度3mm，设计图见模型源文件

3.M3螺丝与螺母

4.特氟龙管，2.5*4mm（内径/外径）

Improved the issue of material jamming in the drying oven

In addition to 3D printing, it is also necessary to:

1. Pneumatic joint PC4-01 straight through type;

2. Customized acrylic board with a thickness of 3mm, design drawings can be found in the model source file

3. M3 screws and nuts

4. Teflon tube, 2.5 * 4mm (inner diameter/outer diameter)