There are different kinds of ratchet screwdrivers on the market, but I couldn't find a printable version, so I decided to make one. This model is designed in a way that allows you to loosen and tighten screws.

**Printing**
Print setting of 0.2mm layer and 0.5 nozzle with PLA work well.
This model doesn't need support.

Ratchet Screw Driver 

ratchet  F.STL

ratchet A.STL

ratchet C.STL

ratchet D.STL

 Reverse-Engineered afterburner variable nozzle based on F-18 fighter jet.

**Model Info:**
This model is just an experiment to understand how an afterburner nozzle works. However, it’s not an exact representation of the real ones and may not be a practical model for use in actual jet engines.

**Dimensions:**
**105x90** (RxH)
 
**Part List**
- body = 1
- Holder ring = 1
- Nut ring = 1
- Blade A = 12
- Blade B Assy = 12
- Blade C = 12
- Link A = 12
- Link B = 12
- Rod = 12
- Support = 12
- Adaptor = 1

**Printing**
This model contains many pins and joints, so it's essential to print with high quality to ensure all the parts fit together perfectly.
 _Material:_ PLA
_Layer:_ 0.2mm
_Infill:_ min 10%
_Supports:_ NO
_Brims:_ only for blade C

**features**
I designed a threaded end on the nozzle to allow it to attach to other components. If you can't design a threaded part, you can use my adapter with M5 holes, which makes it easy to attach to anything.

I appreciate your support and downloads. Please share your thoughts and experiences with me, and I'd be even happier if you could provide suggestions to help improve my model. Thanks! 

F-18 Afterburner Variable Nozzle

body.STL

Adaptor.STL

blade A.STL

blade B Assy.STL

blade C.STL

holder ring.STL

link A.STL

link B.STL

nut ring.STL

rod.STL

support.STL

This is a Pencil clip cap that helps you put your pencil in your pocket like a pen.

**Model Info:**
If you have a problem with your pen falling out of your pocket, or if your pocket is so big that your pen gets lost in it, this is the perfect tool for you to place your pencil at the edge of your pocket.


**Dimensions:**
- _Circle pencil radius 7.1mm _
- _Hex pencil radius 7.1mm _
- _Triangle pencil radius 8.3mm _


**Printing**
As a matter of fact, different kinds of pencils around the world come in different sizes. You may need to scale the model slightly to fit perfectly on your pencil.

_Material:_ PLA
_Layer: _0.2mm
_Infill:_ min 10%
_Supports:_ NO



**I appreciate your support and downloads. Please share your thoughts and experiences with me, and I'd be even happier if you could provide suggestions to help improve my model. Thanks!**

Pencil Clip Cap 

pencil clip cap - circle.STL

pencil clip cap - Hex.STL

pencil clip cap - Triangle.STL

**Hi👋 Im Shayan , a Mechanical Engineer, and I want to share my work with you**

Check out my [YouTube](http://www.youtube.com/@shayan_cad) channel for more of my projects! 

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