About this 3D model

Designed a pressing pen, the pen core and spring are compatible with the ordinary pressing pen of Morning Glory. If you want to buy the spring alone, you can search for the pressing pen spring on pdd and choose the size of 0.4*4.5*1.8. After this model is printed, the back cover part is a bit tight, and a hammer can be used to knock it in. I used a hammer to knock it in. This pressing pen uses a side button to retract the pen, which is designed simply for modeling convenience and simple structure. For slicing, you can choose a layer height of 0.08mm for finer detail, which will be more refined.