gel pen

thingiverse

I have a large bucket of gel pens at home. Some are good and some are not. They come in all shapes and sizes, tall, short, fat and thin. But except for a few special ones, the refills are all surprisingly standard. They are all universal refills. There is also a box of replacement pens for the same. The core and size are exactly the same, so it is very necessary to design a pen yourself.You can choose the thickness and shape by yourself, and you can also print it in the color you like. The most important thing is because there is a 3D printer. When you have free time, you can run it and print the pen non-stop. Load all the refills into the pen.In order to facilitate printing, it is designed in two halves, so it is faster to print when laid flat.After printing, sandwich the pen core between the two pieces, and then use a triangle to cover it. It can not only help hold the pen, but also fix the pen case. Finally, put the pen cover on. Now it is very strong and easy to use.Printing does not require support, takes about 50 minutes to print, uses 7.8 consumables, and costs about 0.3 yuan.家里中性笔一大桶，有好用的也有不好用的，形形色色，高矮胖瘦，但是笔芯除了个别比较特别的，都出奇的标准，都是通用笔芯，同样的还有一盒替换笔芯，尺寸完全一致，所以自己设计一个笔就十分有必要了。可以自己选择粗细，形状，还可以用自己喜欢的颜色打印，最重要是因为有3D打印机，闲暇时候让它跑起来，不停打印笔就好了，把这一把笔芯都装上笔。为了方便打印，设计为两半，平放打印比较快。打印好之后，把笔芯夹在两片中间，然后使用三角形套起来，既可以帮助握笔，还可以固定笔壳，最后再将笔套套上，现在就很结实顺手了。打印不需要支撑，大约需要打印50分，使用耗材7.8，费用大约0.3元左右。