Pen Holder for Drawing machine (Plotter cnc)

I've just designed Penholder for Drawing machine
There are many way to hold pen and i'd design this Pen holder for my plotter cnc.
This design fit with SG90 servo motor.
The servo motor is hided after slider.
This Pen holder is adapted to X axis by two M3 screw.
The Pen is holded on slider by M5 screw.
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Pen up condition: the servo horn keep the pen at high position and don't touch to the paper.
Pen down condition: the horn turn down to release the slider. Two spring pull slider down and the pen down two. The spring keep the pen touch the paper.
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The part list:
+ Base part
+ Slider part
+ 2 Guider 5mm diameter, 7mm Length
+ 2 spring 6mm diameter, 5mm Length
+ SG90 servo motor
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Subcribe my chanel to get more information!
+My youtube chanel:
https://www.youtube.com/channel/UCaDmrdXfllAZu7yZYABAnrw
+Email: [email protected]